1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4 */ 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * Ported from 4.1.1_PSRA: "@(#)openprom.c 1.19 91/02/19 SMI"; 31*0Sstevel@tonic-gate * 32*0Sstevel@tonic-gate * Porting notes: 33*0Sstevel@tonic-gate * 34*0Sstevel@tonic-gate * OPROMU2P unsupported after SunOS 4.x. 35*0Sstevel@tonic-gate * 36*0Sstevel@tonic-gate * Only one of these devices per system is allowed. 37*0Sstevel@tonic-gate */ 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate /* 40*0Sstevel@tonic-gate * Openprom eeprom options/devinfo driver. 41*0Sstevel@tonic-gate */ 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate #include <sys/types.h> 44*0Sstevel@tonic-gate #include <sys/errno.h> 45*0Sstevel@tonic-gate #include <sys/file.h> 46*0Sstevel@tonic-gate #include <sys/cmn_err.h> 47*0Sstevel@tonic-gate #include <sys/kmem.h> 48*0Sstevel@tonic-gate #include <sys/openpromio.h> 49*0Sstevel@tonic-gate #include <sys/conf.h> 50*0Sstevel@tonic-gate #include <sys/stat.h> 51*0Sstevel@tonic-gate #include <sys/modctl.h> 52*0Sstevel@tonic-gate #include <sys/debug.h> 53*0Sstevel@tonic-gate #include <sys/autoconf.h> 54*0Sstevel@tonic-gate #include <sys/ddi.h> 55*0Sstevel@tonic-gate #include <sys/sunddi.h> 56*0Sstevel@tonic-gate #include <sys/promif.h> 57*0Sstevel@tonic-gate #include <sys/sysmacros.h> /* offsetof */ 58*0Sstevel@tonic-gate #include <sys/nvpair.h> 59*0Sstevel@tonic-gate #include <sys/wanboot_impl.h> 60*0Sstevel@tonic-gate #include <sys/zone.h> 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate #define MAX_OPENS 32 /* Up to this many simultaneous opens */ 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate #define IOC_IDLE 0 /* snapshot ioctl states */ 65*0Sstevel@tonic-gate #define IOC_SNAP 1 /* snapshot in progress */ 66*0Sstevel@tonic-gate #define IOC_DONE 2 /* snapshot done, but not copied out */ 67*0Sstevel@tonic-gate #define IOC_COPY 3 /* copyout in progress */ 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate extern int plat_stdout_is_framebuffer(void); 70*0Sstevel@tonic-gate extern int plat_stdin_is_keyboard(void); 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate /* 73*0Sstevel@tonic-gate * XXX Make this dynamic.. or (better still) make the interface stateless 74*0Sstevel@tonic-gate */ 75*0Sstevel@tonic-gate static struct oprom_state { 76*0Sstevel@tonic-gate dnode_t current_id; /* node we're fetching props from */ 77*0Sstevel@tonic-gate int16_t already_open; /* if true, this instance is 'active' */ 78*0Sstevel@tonic-gate int16_t ioc_state; /* snapshot ioctl state */ 79*0Sstevel@tonic-gate char *snapshot; /* snapshot of all prom nodes */ 80*0Sstevel@tonic-gate size_t size; /* size of snapshot */ 81*0Sstevel@tonic-gate prom_generation_cookie_t tree_gen; 82*0Sstevel@tonic-gate } oprom_state[MAX_OPENS]; 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate static kmutex_t oprom_lock; /* serialize instance assignment */ 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate static int opromopen(dev_t *, int, int, cred_t *); 87*0Sstevel@tonic-gate static int opromioctl(dev_t, int, intptr_t, int, cred_t *, int *); 88*0Sstevel@tonic-gate static int opromclose(dev_t, int, int, cred_t *); 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate static int opinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 91*0Sstevel@tonic-gate void **result); 92*0Sstevel@tonic-gate static int opattach(dev_info_t *, ddi_attach_cmd_t cmd); 93*0Sstevel@tonic-gate static int opdetach(dev_info_t *, ddi_detach_cmd_t cmd); 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate /* help functions */ 96*0Sstevel@tonic-gate static int oprom_checknodeid(dnode_t, dnode_t); 97*0Sstevel@tonic-gate static int oprom_copyinstr(intptr_t, char *, size_t, size_t); 98*0Sstevel@tonic-gate static int oprom_copynode(dnode_t, uint_t, char **, size_t *); 99*0Sstevel@tonic-gate static int oprom_snapshot(struct oprom_state *, intptr_t); 100*0Sstevel@tonic-gate static int oprom_copyout(struct oprom_state *, intptr_t); 101*0Sstevel@tonic-gate static int oprom_setstate(struct oprom_state *, int16_t); 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate static struct cb_ops openeepr_cb_ops = { 104*0Sstevel@tonic-gate opromopen, /* open */ 105*0Sstevel@tonic-gate opromclose, /* close */ 106*0Sstevel@tonic-gate nodev, /* strategy */ 107*0Sstevel@tonic-gate nodev, /* print */ 108*0Sstevel@tonic-gate nodev, /* dump */ 109*0Sstevel@tonic-gate nodev, /* read */ 110*0Sstevel@tonic-gate nodev, /* write */ 111*0Sstevel@tonic-gate opromioctl, /* ioctl */ 112*0Sstevel@tonic-gate nodev, /* devmap */ 113*0Sstevel@tonic-gate nodev, /* mmap */ 114*0Sstevel@tonic-gate nodev, /* segmap */ 115*0Sstevel@tonic-gate nochpoll, /* poll */ 116*0Sstevel@tonic-gate ddi_prop_op, /* prop_op */ 117*0Sstevel@tonic-gate NULL, /* streamtab */ 118*0Sstevel@tonic-gate D_NEW | D_MP /* Driver compatibility flag */ 119*0Sstevel@tonic-gate }; 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate static struct dev_ops openeepr_ops = { 122*0Sstevel@tonic-gate DEVO_REV, /* devo_rev, */ 123*0Sstevel@tonic-gate 0, /* refcnt */ 124*0Sstevel@tonic-gate opinfo, /* info */ 125*0Sstevel@tonic-gate nulldev, /* identify */ 126*0Sstevel@tonic-gate nulldev, /* probe */ 127*0Sstevel@tonic-gate opattach, /* attach */ 128*0Sstevel@tonic-gate opdetach, /* detach */ 129*0Sstevel@tonic-gate nodev, /* reset */ 130*0Sstevel@tonic-gate &openeepr_cb_ops, /* driver operations */ 131*0Sstevel@tonic-gate NULL /* bus operations */ 132*0Sstevel@tonic-gate }; 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate /* 135*0Sstevel@tonic-gate * Module linkage information for the kernel. 136*0Sstevel@tonic-gate */ 137*0Sstevel@tonic-gate static struct modldrv modldrv = { 138*0Sstevel@tonic-gate &mod_driverops, 139*0Sstevel@tonic-gate "OPENPROM/NVRAM Driver v%I%", 140*0Sstevel@tonic-gate &openeepr_ops 141*0Sstevel@tonic-gate }; 142*0Sstevel@tonic-gate 143*0Sstevel@tonic-gate static struct modlinkage modlinkage = { 144*0Sstevel@tonic-gate MODREV_1, 145*0Sstevel@tonic-gate &modldrv, 146*0Sstevel@tonic-gate NULL 147*0Sstevel@tonic-gate }; 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate int 150*0Sstevel@tonic-gate _init(void) 151*0Sstevel@tonic-gate { 152*0Sstevel@tonic-gate int error; 153*0Sstevel@tonic-gate 154*0Sstevel@tonic-gate mutex_init(&oprom_lock, NULL, MUTEX_DRIVER, NULL); 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate error = mod_install(&modlinkage); 157*0Sstevel@tonic-gate if (error != 0) { 158*0Sstevel@tonic-gate mutex_destroy(&oprom_lock); 159*0Sstevel@tonic-gate return (error); 160*0Sstevel@tonic-gate } 161*0Sstevel@tonic-gate 162*0Sstevel@tonic-gate return (0); 163*0Sstevel@tonic-gate } 164*0Sstevel@tonic-gate 165*0Sstevel@tonic-gate int 166*0Sstevel@tonic-gate _info(struct modinfo *modinfop) 167*0Sstevel@tonic-gate { 168*0Sstevel@tonic-gate return (mod_info(&modlinkage, modinfop)); 169*0Sstevel@tonic-gate } 170*0Sstevel@tonic-gate 171*0Sstevel@tonic-gate int 172*0Sstevel@tonic-gate _fini(void) 173*0Sstevel@tonic-gate { 174*0Sstevel@tonic-gate int error; 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate error = mod_remove(&modlinkage); 177*0Sstevel@tonic-gate if (error != 0) 178*0Sstevel@tonic-gate return (error); 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate mutex_destroy(&oprom_lock); 181*0Sstevel@tonic-gate return (0); 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate 184*0Sstevel@tonic-gate static dev_info_t *opdip; 185*0Sstevel@tonic-gate static dnode_t options_nodeid; 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate /*ARGSUSED*/ 188*0Sstevel@tonic-gate static int 189*0Sstevel@tonic-gate opinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 190*0Sstevel@tonic-gate { 191*0Sstevel@tonic-gate int error = DDI_FAILURE; 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate switch (infocmd) { 194*0Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 195*0Sstevel@tonic-gate *result = (void *)opdip; 196*0Sstevel@tonic-gate error = DDI_SUCCESS; 197*0Sstevel@tonic-gate break; 198*0Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 199*0Sstevel@tonic-gate /* All dev_t's map to the same, single instance */ 200*0Sstevel@tonic-gate *result = (void *)0; 201*0Sstevel@tonic-gate error = DDI_SUCCESS; 202*0Sstevel@tonic-gate break; 203*0Sstevel@tonic-gate default: 204*0Sstevel@tonic-gate break; 205*0Sstevel@tonic-gate } 206*0Sstevel@tonic-gate 207*0Sstevel@tonic-gate return (error); 208*0Sstevel@tonic-gate } 209*0Sstevel@tonic-gate 210*0Sstevel@tonic-gate static int 211*0Sstevel@tonic-gate opattach(dev_info_t *dip, ddi_attach_cmd_t cmd) 212*0Sstevel@tonic-gate { 213*0Sstevel@tonic-gate switch (cmd) { 214*0Sstevel@tonic-gate 215*0Sstevel@tonic-gate case DDI_ATTACH: 216*0Sstevel@tonic-gate if (prom_is_openprom()) { 217*0Sstevel@tonic-gate options_nodeid = prom_optionsnode(); 218*0Sstevel@tonic-gate } else { 219*0Sstevel@tonic-gate options_nodeid = OBP_BADNODE; 220*0Sstevel@tonic-gate } 221*0Sstevel@tonic-gate 222*0Sstevel@tonic-gate opdip = dip; 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate if (ddi_create_minor_node(dip, "openprom", S_IFCHR, 225*0Sstevel@tonic-gate 0, DDI_PSEUDO, NULL) == DDI_FAILURE) { 226*0Sstevel@tonic-gate return (DDI_FAILURE); 227*0Sstevel@tonic-gate } 228*0Sstevel@tonic-gate 229*0Sstevel@tonic-gate return (DDI_SUCCESS); 230*0Sstevel@tonic-gate 231*0Sstevel@tonic-gate default: 232*0Sstevel@tonic-gate return (DDI_FAILURE); 233*0Sstevel@tonic-gate } 234*0Sstevel@tonic-gate } 235*0Sstevel@tonic-gate 236*0Sstevel@tonic-gate static int 237*0Sstevel@tonic-gate opdetach(dev_info_t *dip, ddi_detach_cmd_t cmd) 238*0Sstevel@tonic-gate { 239*0Sstevel@tonic-gate if (cmd != DDI_DETACH) 240*0Sstevel@tonic-gate return (DDI_FAILURE); 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate ddi_remove_minor_node(dip, NULL); 243*0Sstevel@tonic-gate opdip = NULL; 244*0Sstevel@tonic-gate 245*0Sstevel@tonic-gate return (DDI_SUCCESS); 246*0Sstevel@tonic-gate } 247*0Sstevel@tonic-gate 248*0Sstevel@tonic-gate /* 249*0Sstevel@tonic-gate * Allow multiple opens by tweaking the dev_t such that it looks like each 250*0Sstevel@tonic-gate * open is getting a different minor device. Each minor gets a separate 251*0Sstevel@tonic-gate * entry in the oprom_state[] table. 252*0Sstevel@tonic-gate */ 253*0Sstevel@tonic-gate /*ARGSUSED*/ 254*0Sstevel@tonic-gate static int 255*0Sstevel@tonic-gate opromopen(dev_t *devp, int flag, int otyp, cred_t *credp) 256*0Sstevel@tonic-gate { 257*0Sstevel@tonic-gate int m; 258*0Sstevel@tonic-gate struct oprom_state *st = oprom_state; 259*0Sstevel@tonic-gate 260*0Sstevel@tonic-gate if (getminor(*devp) != 0) 261*0Sstevel@tonic-gate return (ENXIO); 262*0Sstevel@tonic-gate 263*0Sstevel@tonic-gate mutex_enter(&oprom_lock); 264*0Sstevel@tonic-gate for (m = 0; m < MAX_OPENS; m++) 265*0Sstevel@tonic-gate if (st->already_open) 266*0Sstevel@tonic-gate st++; 267*0Sstevel@tonic-gate else { 268*0Sstevel@tonic-gate st->already_open = 1; 269*0Sstevel@tonic-gate /* 270*0Sstevel@tonic-gate * It's ours. 271*0Sstevel@tonic-gate */ 272*0Sstevel@tonic-gate st->current_id = (dnode_t)0; 273*0Sstevel@tonic-gate ASSERT(st->snapshot == NULL && st->size == 0); 274*0Sstevel@tonic-gate ASSERT(st->ioc_state == IOC_IDLE); 275*0Sstevel@tonic-gate break; 276*0Sstevel@tonic-gate } 277*0Sstevel@tonic-gate mutex_exit(&oprom_lock); 278*0Sstevel@tonic-gate 279*0Sstevel@tonic-gate if (m == MAX_OPENS) { 280*0Sstevel@tonic-gate /* 281*0Sstevel@tonic-gate * "Thank you for calling, but all our lines are 282*0Sstevel@tonic-gate * busy at the moment.." 283*0Sstevel@tonic-gate * 284*0Sstevel@tonic-gate * We could get sophisticated here, and go into a 285*0Sstevel@tonic-gate * sleep-retry loop .. but hey, I just can't see 286*0Sstevel@tonic-gate * that many processes sitting in this driver. 287*0Sstevel@tonic-gate * 288*0Sstevel@tonic-gate * (And if it does become possible, then we should 289*0Sstevel@tonic-gate * change the interface so that the 'state' is held 290*0Sstevel@tonic-gate * external to the driver) 291*0Sstevel@tonic-gate */ 292*0Sstevel@tonic-gate return (EAGAIN); 293*0Sstevel@tonic-gate } 294*0Sstevel@tonic-gate 295*0Sstevel@tonic-gate *devp = makedevice(getmajor(*devp), (minor_t)m); 296*0Sstevel@tonic-gate 297*0Sstevel@tonic-gate return (0); 298*0Sstevel@tonic-gate } 299*0Sstevel@tonic-gate 300*0Sstevel@tonic-gate /*ARGSUSED*/ 301*0Sstevel@tonic-gate static int 302*0Sstevel@tonic-gate opromclose(dev_t dev, int flag, int otype, cred_t *cred_p) 303*0Sstevel@tonic-gate { 304*0Sstevel@tonic-gate struct oprom_state *st; 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate st = &oprom_state[getminor(dev)]; 307*0Sstevel@tonic-gate ASSERT(getminor(dev) < MAX_OPENS && st->already_open != 0); 308*0Sstevel@tonic-gate if (st->snapshot) { 309*0Sstevel@tonic-gate kmem_free(st->snapshot, st->size); 310*0Sstevel@tonic-gate st->snapshot = NULL; 311*0Sstevel@tonic-gate st->size = 0; 312*0Sstevel@tonic-gate st->ioc_state = IOC_IDLE; 313*0Sstevel@tonic-gate } 314*0Sstevel@tonic-gate mutex_enter(&oprom_lock); 315*0Sstevel@tonic-gate st->already_open = 0; 316*0Sstevel@tonic-gate mutex_exit(&oprom_lock); 317*0Sstevel@tonic-gate 318*0Sstevel@tonic-gate return (0); 319*0Sstevel@tonic-gate } 320*0Sstevel@tonic-gate 321*0Sstevel@tonic-gate struct opromioctl_args { 322*0Sstevel@tonic-gate struct oprom_state *st; 323*0Sstevel@tonic-gate int cmd; 324*0Sstevel@tonic-gate intptr_t arg; 325*0Sstevel@tonic-gate int mode; 326*0Sstevel@tonic-gate }; 327*0Sstevel@tonic-gate 328*0Sstevel@tonic-gate /*ARGSUSED*/ 329*0Sstevel@tonic-gate static int 330*0Sstevel@tonic-gate opromioctl_cb(void *avp, int has_changed) 331*0Sstevel@tonic-gate { 332*0Sstevel@tonic-gate struct opromioctl_args *argp = avp; 333*0Sstevel@tonic-gate int cmd; 334*0Sstevel@tonic-gate intptr_t arg; 335*0Sstevel@tonic-gate int mode; 336*0Sstevel@tonic-gate struct oprom_state *st; 337*0Sstevel@tonic-gate struct openpromio *opp; 338*0Sstevel@tonic-gate int valsize; 339*0Sstevel@tonic-gate char *valbuf; 340*0Sstevel@tonic-gate int error = 0; 341*0Sstevel@tonic-gate uint_t userbufsize; 342*0Sstevel@tonic-gate dnode_t node_id; 343*0Sstevel@tonic-gate char propname[OBP_MAXPROPNAME]; 344*0Sstevel@tonic-gate 345*0Sstevel@tonic-gate st = argp->st; 346*0Sstevel@tonic-gate cmd = argp->cmd; 347*0Sstevel@tonic-gate arg = argp->arg; 348*0Sstevel@tonic-gate mode = argp->mode; 349*0Sstevel@tonic-gate 350*0Sstevel@tonic-gate if (has_changed) { 351*0Sstevel@tonic-gate /* 352*0Sstevel@tonic-gate * The prom tree has changed since we last used current_id, 353*0Sstevel@tonic-gate * so we need to check it. 354*0Sstevel@tonic-gate */ 355*0Sstevel@tonic-gate if ((st->current_id != OBP_NONODE) && 356*0Sstevel@tonic-gate (st->current_id != OBP_BADNODE)) { 357*0Sstevel@tonic-gate if (oprom_checknodeid(st->current_id, OBP_NONODE) == 0) 358*0Sstevel@tonic-gate st->current_id = OBP_BADNODE; 359*0Sstevel@tonic-gate } 360*0Sstevel@tonic-gate } 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate /* 363*0Sstevel@tonic-gate * Check permissions 364*0Sstevel@tonic-gate * and weed out unsupported commands on x86 platform 365*0Sstevel@tonic-gate */ 366*0Sstevel@tonic-gate switch (cmd) { 367*0Sstevel@tonic-gate #if !defined(__i386) && !defined(__amd64) 368*0Sstevel@tonic-gate case OPROMLISTKEYSLEN: 369*0Sstevel@tonic-gate valsize = prom_asr_list_keys_len(); 370*0Sstevel@tonic-gate opp = (struct openpromio *)kmem_zalloc( 371*0Sstevel@tonic-gate sizeof (uint_t) + 1, KM_SLEEP); 372*0Sstevel@tonic-gate opp->oprom_size = valsize; 373*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, (sizeof (uint_t))) != 0) 374*0Sstevel@tonic-gate error = EFAULT; 375*0Sstevel@tonic-gate kmem_free(opp, sizeof (uint_t) + 1); 376*0Sstevel@tonic-gate break; 377*0Sstevel@tonic-gate case OPROMLISTKEYS: 378*0Sstevel@tonic-gate valsize = prom_asr_list_keys_len(); 379*0Sstevel@tonic-gate if (copyin((void *)arg, &userbufsize, sizeof (uint_t)) != 0) 380*0Sstevel@tonic-gate return (EFAULT); 381*0Sstevel@tonic-gate if (valsize > userbufsize) 382*0Sstevel@tonic-gate return (EINVAL); 383*0Sstevel@tonic-gate valbuf = (char *)kmem_zalloc(valsize + 1, KM_SLEEP); 384*0Sstevel@tonic-gate if (prom_asr_list_keys((caddr_t)valbuf) == -1) { 385*0Sstevel@tonic-gate kmem_free(valbuf, valsize + 1); 386*0Sstevel@tonic-gate return (EFAULT); 387*0Sstevel@tonic-gate } 388*0Sstevel@tonic-gate opp = (struct openpromio *)kmem_zalloc( 389*0Sstevel@tonic-gate valsize + sizeof (uint_t) + 1, KM_SLEEP); 390*0Sstevel@tonic-gate opp->oprom_size = valsize; 391*0Sstevel@tonic-gate bcopy(valbuf, opp->oprom_array, valsize); 392*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, (valsize + sizeof (uint_t))) != 0) 393*0Sstevel@tonic-gate error = EFAULT; 394*0Sstevel@tonic-gate kmem_free(valbuf, valsize + 1); 395*0Sstevel@tonic-gate kmem_free(opp, valsize + sizeof (uint_t) + 1); 396*0Sstevel@tonic-gate break; 397*0Sstevel@tonic-gate case OPROMEXPORT: 398*0Sstevel@tonic-gate valsize = prom_asr_export_len(); 399*0Sstevel@tonic-gate if (copyin((void *)arg, &userbufsize, sizeof (uint_t)) != 0) 400*0Sstevel@tonic-gate return (EFAULT); 401*0Sstevel@tonic-gate if (valsize > userbufsize) 402*0Sstevel@tonic-gate return (EINVAL); 403*0Sstevel@tonic-gate valbuf = (char *)kmem_zalloc(valsize + 1, KM_SLEEP); 404*0Sstevel@tonic-gate if (prom_asr_export((caddr_t)valbuf) == -1) { 405*0Sstevel@tonic-gate kmem_free(valbuf, valsize + 1); 406*0Sstevel@tonic-gate return (EFAULT); 407*0Sstevel@tonic-gate } 408*0Sstevel@tonic-gate opp = (struct openpromio *)kmem_zalloc( 409*0Sstevel@tonic-gate valsize + sizeof (uint_t) + 1, KM_SLEEP); 410*0Sstevel@tonic-gate opp->oprom_size = valsize; 411*0Sstevel@tonic-gate bcopy(valbuf, opp->oprom_array, valsize); 412*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, (valsize + sizeof (uint_t))) != 0) 413*0Sstevel@tonic-gate error = EFAULT; 414*0Sstevel@tonic-gate kmem_free(valbuf, valsize + 1); 415*0Sstevel@tonic-gate kmem_free(opp, valsize + sizeof (uint_t) + 1); 416*0Sstevel@tonic-gate break; 417*0Sstevel@tonic-gate case OPROMEXPORTLEN: 418*0Sstevel@tonic-gate valsize = prom_asr_export_len(); 419*0Sstevel@tonic-gate opp = (struct openpromio *)kmem_zalloc( 420*0Sstevel@tonic-gate sizeof (uint_t) + 1, KM_SLEEP); 421*0Sstevel@tonic-gate opp->oprom_size = valsize; 422*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, (sizeof (uint_t))) != 0) 423*0Sstevel@tonic-gate error = EFAULT; 424*0Sstevel@tonic-gate kmem_free(opp, sizeof (uint_t) + 1); 425*0Sstevel@tonic-gate break; 426*0Sstevel@tonic-gate #endif 427*0Sstevel@tonic-gate case OPROMGETOPT: 428*0Sstevel@tonic-gate case OPROMNXTOPT: 429*0Sstevel@tonic-gate if ((mode & FREAD) == 0) { 430*0Sstevel@tonic-gate return (EPERM); 431*0Sstevel@tonic-gate } 432*0Sstevel@tonic-gate node_id = options_nodeid; 433*0Sstevel@tonic-gate break; 434*0Sstevel@tonic-gate 435*0Sstevel@tonic-gate case OPROMSETOPT: 436*0Sstevel@tonic-gate case OPROMSETOPT2: 437*0Sstevel@tonic-gate #if !defined(__i386) && !defined(__amd64) 438*0Sstevel@tonic-gate if (mode & FWRITE) { 439*0Sstevel@tonic-gate node_id = options_nodeid; 440*0Sstevel@tonic-gate break; 441*0Sstevel@tonic-gate } 442*0Sstevel@tonic-gate #endif /* !__i386 && !__amd64 */ 443*0Sstevel@tonic-gate return (EPERM); 444*0Sstevel@tonic-gate 445*0Sstevel@tonic-gate case OPROMNEXT: 446*0Sstevel@tonic-gate case OPROMCHILD: 447*0Sstevel@tonic-gate case OPROMGETPROP: 448*0Sstevel@tonic-gate case OPROMGETPROPLEN: 449*0Sstevel@tonic-gate case OPROMNXTPROP: 450*0Sstevel@tonic-gate case OPROMSETNODEID: 451*0Sstevel@tonic-gate if ((mode & FREAD) == 0) { 452*0Sstevel@tonic-gate return (EPERM); 453*0Sstevel@tonic-gate } 454*0Sstevel@tonic-gate node_id = st->current_id; 455*0Sstevel@tonic-gate break; 456*0Sstevel@tonic-gate case OPROMCOPYOUT: 457*0Sstevel@tonic-gate if (st->snapshot == NULL) 458*0Sstevel@tonic-gate return (EINVAL); 459*0Sstevel@tonic-gate /*FALLTHROUGH*/ 460*0Sstevel@tonic-gate case OPROMSNAPSHOT: 461*0Sstevel@tonic-gate case OPROMGETCONS: 462*0Sstevel@tonic-gate case OPROMGETBOOTARGS: 463*0Sstevel@tonic-gate case OPROMGETVERSION: 464*0Sstevel@tonic-gate case OPROMPATH2DRV: 465*0Sstevel@tonic-gate case OPROMPROM2DEVNAME: 466*0Sstevel@tonic-gate #if !defined(__i386) && !defined(__amd64) 467*0Sstevel@tonic-gate case OPROMGETFBNAME: 468*0Sstevel@tonic-gate case OPROMDEV2PROMNAME: 469*0Sstevel@tonic-gate case OPROMREADY64: 470*0Sstevel@tonic-gate #endif /* !__i386 && !__amd64 */ 471*0Sstevel@tonic-gate if ((mode & FREAD) == 0) { 472*0Sstevel@tonic-gate return (EPERM); 473*0Sstevel@tonic-gate } 474*0Sstevel@tonic-gate break; 475*0Sstevel@tonic-gate 476*0Sstevel@tonic-gate #if !defined(__i386) && !defined(__amd64) 477*0Sstevel@tonic-gate case WANBOOT_SETKEY: 478*0Sstevel@tonic-gate if (!(mode & FWRITE)) 479*0Sstevel@tonic-gate return (EPERM); 480*0Sstevel@tonic-gate break; 481*0Sstevel@tonic-gate #endif /* !__i386 && !defined(__amd64) */ 482*0Sstevel@tonic-gate 483*0Sstevel@tonic-gate default: 484*0Sstevel@tonic-gate return (EINVAL); 485*0Sstevel@tonic-gate } 486*0Sstevel@tonic-gate 487*0Sstevel@tonic-gate /* 488*0Sstevel@tonic-gate * Deal with SNAPSHOT and COPYOUT ioctls first 489*0Sstevel@tonic-gate */ 490*0Sstevel@tonic-gate switch (cmd) { 491*0Sstevel@tonic-gate case OPROMCOPYOUT: 492*0Sstevel@tonic-gate return (oprom_copyout(st, arg)); 493*0Sstevel@tonic-gate 494*0Sstevel@tonic-gate case OPROMSNAPSHOT: 495*0Sstevel@tonic-gate return (oprom_snapshot(st, arg)); 496*0Sstevel@tonic-gate } 497*0Sstevel@tonic-gate 498*0Sstevel@tonic-gate /* 499*0Sstevel@tonic-gate * Copy in user argument length and allocation memory 500*0Sstevel@tonic-gate * 501*0Sstevel@tonic-gate * NB do not copyin the entire buffer we may not need 502*0Sstevel@tonic-gate * to. userbufsize can be as big as 32 K. 503*0Sstevel@tonic-gate */ 504*0Sstevel@tonic-gate if (copyin((void *)arg, &userbufsize, sizeof (uint_t)) != 0) 505*0Sstevel@tonic-gate return (EFAULT); 506*0Sstevel@tonic-gate 507*0Sstevel@tonic-gate if (userbufsize == 0 || userbufsize > OPROMMAXPARAM) 508*0Sstevel@tonic-gate return (EINVAL); 509*0Sstevel@tonic-gate 510*0Sstevel@tonic-gate opp = (struct openpromio *)kmem_zalloc( 511*0Sstevel@tonic-gate userbufsize + sizeof (uint_t) + 1, KM_SLEEP); 512*0Sstevel@tonic-gate 513*0Sstevel@tonic-gate /* 514*0Sstevel@tonic-gate * Execute command 515*0Sstevel@tonic-gate */ 516*0Sstevel@tonic-gate switch (cmd) { 517*0Sstevel@tonic-gate 518*0Sstevel@tonic-gate case OPROMGETOPT: 519*0Sstevel@tonic-gate case OPROMGETPROP: 520*0Sstevel@tonic-gate case OPROMGETPROPLEN: 521*0Sstevel@tonic-gate 522*0Sstevel@tonic-gate if ((prom_is_openprom() == 0) || 523*0Sstevel@tonic-gate (node_id == OBP_NONODE) || (node_id == OBP_BADNODE)) { 524*0Sstevel@tonic-gate error = EINVAL; 525*0Sstevel@tonic-gate break; 526*0Sstevel@tonic-gate } 527*0Sstevel@tonic-gate 528*0Sstevel@tonic-gate /* 529*0Sstevel@tonic-gate * The argument, a NULL terminated string, is a prop name. 530*0Sstevel@tonic-gate */ 531*0Sstevel@tonic-gate if ((error = oprom_copyinstr(arg, opp->oprom_array, 532*0Sstevel@tonic-gate (size_t)userbufsize, OBP_MAXPROPNAME)) != 0) { 533*0Sstevel@tonic-gate break; 534*0Sstevel@tonic-gate } 535*0Sstevel@tonic-gate (void) strcpy(propname, opp->oprom_array); 536*0Sstevel@tonic-gate valsize = prom_getproplen(node_id, propname); 537*0Sstevel@tonic-gate 538*0Sstevel@tonic-gate /* 539*0Sstevel@tonic-gate * 4010173: 'name' is a property, but not an option. 540*0Sstevel@tonic-gate */ 541*0Sstevel@tonic-gate if ((cmd == OPROMGETOPT) && (strcmp("name", propname) == 0)) 542*0Sstevel@tonic-gate valsize = -1; 543*0Sstevel@tonic-gate 544*0Sstevel@tonic-gate if (cmd == OPROMGETPROPLEN) { 545*0Sstevel@tonic-gate int proplen = valsize; 546*0Sstevel@tonic-gate 547*0Sstevel@tonic-gate if (userbufsize < sizeof (int)) { 548*0Sstevel@tonic-gate error = EINVAL; 549*0Sstevel@tonic-gate break; 550*0Sstevel@tonic-gate } 551*0Sstevel@tonic-gate opp->oprom_size = valsize = sizeof (int); 552*0Sstevel@tonic-gate bcopy(&proplen, opp->oprom_array, valsize); 553*0Sstevel@tonic-gate } else if (valsize > 0 && valsize <= userbufsize) { 554*0Sstevel@tonic-gate bzero(opp->oprom_array, valsize + 1); 555*0Sstevel@tonic-gate (void) prom_getprop(node_id, propname, 556*0Sstevel@tonic-gate opp->oprom_array); 557*0Sstevel@tonic-gate opp->oprom_size = valsize; 558*0Sstevel@tonic-gate if (valsize < userbufsize) 559*0Sstevel@tonic-gate ++valsize; /* Forces NULL termination */ 560*0Sstevel@tonic-gate /* If space permits */ 561*0Sstevel@tonic-gate } else { 562*0Sstevel@tonic-gate /* 563*0Sstevel@tonic-gate * XXX: There is no error code if the buf is too small. 564*0Sstevel@tonic-gate * which is consistent with the current behavior. 565*0Sstevel@tonic-gate * 566*0Sstevel@tonic-gate * NB: This clause also handles the non-error 567*0Sstevel@tonic-gate * zero length (boolean) property value case. 568*0Sstevel@tonic-gate */ 569*0Sstevel@tonic-gate opp->oprom_size = 0; 570*0Sstevel@tonic-gate (void) strcpy(opp->oprom_array, ""); 571*0Sstevel@tonic-gate valsize = 1; 572*0Sstevel@tonic-gate } 573*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, (valsize + sizeof (uint_t))) != 0) 574*0Sstevel@tonic-gate error = EFAULT; 575*0Sstevel@tonic-gate break; 576*0Sstevel@tonic-gate 577*0Sstevel@tonic-gate case OPROMNXTOPT: 578*0Sstevel@tonic-gate case OPROMNXTPROP: 579*0Sstevel@tonic-gate if ((prom_is_openprom() == 0) || 580*0Sstevel@tonic-gate (node_id == OBP_NONODE) || (node_id == OBP_BADNODE)) { 581*0Sstevel@tonic-gate error = EINVAL; 582*0Sstevel@tonic-gate break; 583*0Sstevel@tonic-gate } 584*0Sstevel@tonic-gate 585*0Sstevel@tonic-gate /* 586*0Sstevel@tonic-gate * The argument, a NULL terminated string, is a prop name. 587*0Sstevel@tonic-gate */ 588*0Sstevel@tonic-gate if ((error = oprom_copyinstr(arg, opp->oprom_array, 589*0Sstevel@tonic-gate (size_t)userbufsize, OBP_MAXPROPNAME)) != 0) { 590*0Sstevel@tonic-gate break; 591*0Sstevel@tonic-gate } 592*0Sstevel@tonic-gate valbuf = (char *)prom_nextprop(node_id, opp->oprom_array, 593*0Sstevel@tonic-gate propname); 594*0Sstevel@tonic-gate valsize = strlen(valbuf); 595*0Sstevel@tonic-gate 596*0Sstevel@tonic-gate /* 597*0Sstevel@tonic-gate * 4010173: 'name' is a property, but it's not an option. 598*0Sstevel@tonic-gate */ 599*0Sstevel@tonic-gate if ((cmd == OPROMNXTOPT) && valsize && 600*0Sstevel@tonic-gate (strcmp(valbuf, "name") == 0)) { 601*0Sstevel@tonic-gate valbuf = (char *)prom_nextprop(node_id, "name", 602*0Sstevel@tonic-gate propname); 603*0Sstevel@tonic-gate valsize = strlen(valbuf); 604*0Sstevel@tonic-gate } 605*0Sstevel@tonic-gate 606*0Sstevel@tonic-gate if (valsize == 0) { 607*0Sstevel@tonic-gate opp->oprom_size = 0; 608*0Sstevel@tonic-gate } else if (++valsize <= userbufsize) { 609*0Sstevel@tonic-gate opp->oprom_size = valsize; 610*0Sstevel@tonic-gate bzero((caddr_t)opp->oprom_array, (size_t)valsize); 611*0Sstevel@tonic-gate bcopy((caddr_t)valbuf, (caddr_t)opp->oprom_array, 612*0Sstevel@tonic-gate (size_t)valsize); 613*0Sstevel@tonic-gate } 614*0Sstevel@tonic-gate 615*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, valsize + sizeof (uint_t)) != 0) 616*0Sstevel@tonic-gate error = EFAULT; 617*0Sstevel@tonic-gate break; 618*0Sstevel@tonic-gate 619*0Sstevel@tonic-gate case OPROMNEXT: 620*0Sstevel@tonic-gate case OPROMCHILD: 621*0Sstevel@tonic-gate case OPROMSETNODEID: 622*0Sstevel@tonic-gate 623*0Sstevel@tonic-gate if (prom_is_openprom() == 0 || 624*0Sstevel@tonic-gate userbufsize < sizeof (dnode_t)) { 625*0Sstevel@tonic-gate error = EINVAL; 626*0Sstevel@tonic-gate break; 627*0Sstevel@tonic-gate } 628*0Sstevel@tonic-gate 629*0Sstevel@tonic-gate /* 630*0Sstevel@tonic-gate * The argument is a phandle. (aka dnode_t) 631*0Sstevel@tonic-gate */ 632*0Sstevel@tonic-gate if (copyin(((caddr_t)arg + sizeof (uint_t)), 633*0Sstevel@tonic-gate opp->oprom_array, sizeof (dnode_t)) != 0) { 634*0Sstevel@tonic-gate error = EFAULT; 635*0Sstevel@tonic-gate break; 636*0Sstevel@tonic-gate } 637*0Sstevel@tonic-gate 638*0Sstevel@tonic-gate /* 639*0Sstevel@tonic-gate * If dnode_t from userland is garbage, we 640*0Sstevel@tonic-gate * could confuse the PROM. 641*0Sstevel@tonic-gate */ 642*0Sstevel@tonic-gate node_id = *(dnode_t *)opp->oprom_array; 643*0Sstevel@tonic-gate if (oprom_checknodeid(node_id, st->current_id) == 0) { 644*0Sstevel@tonic-gate cmn_err(CE_NOTE, "!nodeid 0x%x not found", 645*0Sstevel@tonic-gate (int)node_id); 646*0Sstevel@tonic-gate error = EINVAL; 647*0Sstevel@tonic-gate break; 648*0Sstevel@tonic-gate } 649*0Sstevel@tonic-gate 650*0Sstevel@tonic-gate if (cmd == OPROMNEXT) 651*0Sstevel@tonic-gate st->current_id = prom_nextnode(node_id); 652*0Sstevel@tonic-gate else if (cmd == OPROMCHILD) 653*0Sstevel@tonic-gate st->current_id = prom_childnode(node_id); 654*0Sstevel@tonic-gate else { 655*0Sstevel@tonic-gate /* OPROMSETNODEID */ 656*0Sstevel@tonic-gate st->current_id = node_id; 657*0Sstevel@tonic-gate break; 658*0Sstevel@tonic-gate } 659*0Sstevel@tonic-gate 660*0Sstevel@tonic-gate opp->oprom_size = sizeof (dnode_t); 661*0Sstevel@tonic-gate *(dnode_t *)opp->oprom_array = st->current_id; 662*0Sstevel@tonic-gate 663*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, 664*0Sstevel@tonic-gate sizeof (dnode_t) + sizeof (uint_t)) != 0) 665*0Sstevel@tonic-gate error = EFAULT; 666*0Sstevel@tonic-gate break; 667*0Sstevel@tonic-gate 668*0Sstevel@tonic-gate case OPROMGETCONS: 669*0Sstevel@tonic-gate /* 670*0Sstevel@tonic-gate * Is openboot supported on this machine? 671*0Sstevel@tonic-gate * This ioctl used to return the console device, 672*0Sstevel@tonic-gate * information; this is now done via modctl() 673*0Sstevel@tonic-gate * in libdevinfo. 674*0Sstevel@tonic-gate */ 675*0Sstevel@tonic-gate opp->oprom_size = sizeof (char); 676*0Sstevel@tonic-gate 677*0Sstevel@tonic-gate opp->oprom_array[0] |= prom_is_openprom() ? 678*0Sstevel@tonic-gate OPROMCONS_OPENPROM : 0; 679*0Sstevel@tonic-gate 680*0Sstevel@tonic-gate /* 681*0Sstevel@tonic-gate * The rest of the info is needed by Install to 682*0Sstevel@tonic-gate * decide if graphics should be started. 683*0Sstevel@tonic-gate */ 684*0Sstevel@tonic-gate if ((getzoneid() == GLOBAL_ZONEID) && 685*0Sstevel@tonic-gate plat_stdin_is_keyboard()) { 686*0Sstevel@tonic-gate opp->oprom_array[0] |= OPROMCONS_STDIN_IS_KBD; 687*0Sstevel@tonic-gate } 688*0Sstevel@tonic-gate 689*0Sstevel@tonic-gate if ((getzoneid() == GLOBAL_ZONEID) && 690*0Sstevel@tonic-gate plat_stdout_is_framebuffer()) { 691*0Sstevel@tonic-gate opp->oprom_array[0] |= OPROMCONS_STDOUT_IS_FB; 692*0Sstevel@tonic-gate } 693*0Sstevel@tonic-gate 694*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, 695*0Sstevel@tonic-gate sizeof (char) + sizeof (uint_t)) != 0) 696*0Sstevel@tonic-gate error = EFAULT; 697*0Sstevel@tonic-gate break; 698*0Sstevel@tonic-gate 699*0Sstevel@tonic-gate case OPROMGETBOOTARGS: { 700*0Sstevel@tonic-gate extern char kern_bootargs[]; 701*0Sstevel@tonic-gate 702*0Sstevel@tonic-gate valsize = strlen(kern_bootargs) + 1; 703*0Sstevel@tonic-gate if (valsize > userbufsize) { 704*0Sstevel@tonic-gate error = EINVAL; 705*0Sstevel@tonic-gate break; 706*0Sstevel@tonic-gate } 707*0Sstevel@tonic-gate (void) strcpy(opp->oprom_array, kern_bootargs); 708*0Sstevel@tonic-gate opp->oprom_size = valsize - 1; 709*0Sstevel@tonic-gate 710*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, valsize + sizeof (uint_t)) != 0) 711*0Sstevel@tonic-gate error = EFAULT; 712*0Sstevel@tonic-gate } break; 713*0Sstevel@tonic-gate 714*0Sstevel@tonic-gate /* 715*0Sstevel@tonic-gate * convert a prom device path to an equivalent devfs path 716*0Sstevel@tonic-gate */ 717*0Sstevel@tonic-gate case OPROMPROM2DEVNAME: { 718*0Sstevel@tonic-gate char *dev_name; 719*0Sstevel@tonic-gate 720*0Sstevel@tonic-gate /* 721*0Sstevel@tonic-gate * The input argument, a pathname, is a NULL terminated string. 722*0Sstevel@tonic-gate */ 723*0Sstevel@tonic-gate if ((error = oprom_copyinstr(arg, opp->oprom_array, 724*0Sstevel@tonic-gate (size_t)userbufsize, MAXPATHLEN)) != 0) { 725*0Sstevel@tonic-gate break; 726*0Sstevel@tonic-gate } 727*0Sstevel@tonic-gate 728*0Sstevel@tonic-gate dev_name = kmem_alloc(MAXPATHLEN, KM_SLEEP); 729*0Sstevel@tonic-gate 730*0Sstevel@tonic-gate error = i_promname_to_devname(opp->oprom_array, dev_name); 731*0Sstevel@tonic-gate if (error != 0) { 732*0Sstevel@tonic-gate kmem_free(dev_name, MAXPATHLEN); 733*0Sstevel@tonic-gate break; 734*0Sstevel@tonic-gate } 735*0Sstevel@tonic-gate valsize = opp->oprom_size = strlen(dev_name); 736*0Sstevel@tonic-gate if (++valsize > userbufsize) { 737*0Sstevel@tonic-gate kmem_free(dev_name, MAXPATHLEN); 738*0Sstevel@tonic-gate error = EINVAL; 739*0Sstevel@tonic-gate break; 740*0Sstevel@tonic-gate } 741*0Sstevel@tonic-gate (void) strcpy(opp->oprom_array, dev_name); 742*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, sizeof (uint_t) + valsize) != 0) 743*0Sstevel@tonic-gate error = EFAULT; 744*0Sstevel@tonic-gate 745*0Sstevel@tonic-gate kmem_free(dev_name, MAXPATHLEN); 746*0Sstevel@tonic-gate } break; 747*0Sstevel@tonic-gate 748*0Sstevel@tonic-gate /* 749*0Sstevel@tonic-gate * Convert a prom device path name to a driver name 750*0Sstevel@tonic-gate */ 751*0Sstevel@tonic-gate case OPROMPATH2DRV: { 752*0Sstevel@tonic-gate char *drv_name; 753*0Sstevel@tonic-gate major_t maj; 754*0Sstevel@tonic-gate 755*0Sstevel@tonic-gate /* 756*0Sstevel@tonic-gate * The input argument, a pathname, is a NULL terminated string. 757*0Sstevel@tonic-gate */ 758*0Sstevel@tonic-gate if ((error = oprom_copyinstr(arg, opp->oprom_array, 759*0Sstevel@tonic-gate (size_t)userbufsize, MAXPATHLEN)) != 0) { 760*0Sstevel@tonic-gate break; 761*0Sstevel@tonic-gate } 762*0Sstevel@tonic-gate 763*0Sstevel@tonic-gate /* 764*0Sstevel@tonic-gate * convert path to a driver binding name 765*0Sstevel@tonic-gate */ 766*0Sstevel@tonic-gate maj = path_to_major((char *)opp->oprom_array); 767*0Sstevel@tonic-gate if (maj == (major_t)-1) { 768*0Sstevel@tonic-gate error = EINVAL; 769*0Sstevel@tonic-gate break; 770*0Sstevel@tonic-gate } 771*0Sstevel@tonic-gate 772*0Sstevel@tonic-gate /* 773*0Sstevel@tonic-gate * resolve any aliases 774*0Sstevel@tonic-gate */ 775*0Sstevel@tonic-gate if ((drv_name = ddi_major_to_name(maj)) == NULL) { 776*0Sstevel@tonic-gate error = EINVAL; 777*0Sstevel@tonic-gate break; 778*0Sstevel@tonic-gate } 779*0Sstevel@tonic-gate 780*0Sstevel@tonic-gate (void) strcpy(opp->oprom_array, drv_name); 781*0Sstevel@tonic-gate opp->oprom_size = strlen(drv_name); 782*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, 783*0Sstevel@tonic-gate sizeof (uint_t) + opp->oprom_size + 1) != 0) 784*0Sstevel@tonic-gate error = EFAULT; 785*0Sstevel@tonic-gate } break; 786*0Sstevel@tonic-gate 787*0Sstevel@tonic-gate case OPROMGETVERSION: 788*0Sstevel@tonic-gate /* 789*0Sstevel@tonic-gate * Get a string representing the running version of the 790*0Sstevel@tonic-gate * prom. How to create such a string is platform dependent, 791*0Sstevel@tonic-gate * so we just defer to a promif function. If no such 792*0Sstevel@tonic-gate * association exists, the promif implementation 793*0Sstevel@tonic-gate * may copy the string "unknown" into the given buffer, 794*0Sstevel@tonic-gate * and return its length (incl. NULL terminator). 795*0Sstevel@tonic-gate * 796*0Sstevel@tonic-gate * We expect prom_version_name to return the actual 797*0Sstevel@tonic-gate * length of the string, but copy at most userbufsize 798*0Sstevel@tonic-gate * bytes into the given buffer, including NULL termination. 799*0Sstevel@tonic-gate */ 800*0Sstevel@tonic-gate 801*0Sstevel@tonic-gate valsize = prom_version_name(opp->oprom_array, userbufsize); 802*0Sstevel@tonic-gate if (valsize < 0) { 803*0Sstevel@tonic-gate error = EINVAL; 804*0Sstevel@tonic-gate break; 805*0Sstevel@tonic-gate } 806*0Sstevel@tonic-gate 807*0Sstevel@tonic-gate /* 808*0Sstevel@tonic-gate * copyout only the part of the user buffer we need to. 809*0Sstevel@tonic-gate */ 810*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, 811*0Sstevel@tonic-gate (size_t)(min((uint_t)valsize, userbufsize) + 812*0Sstevel@tonic-gate sizeof (uint_t))) != 0) 813*0Sstevel@tonic-gate error = EFAULT; 814*0Sstevel@tonic-gate break; 815*0Sstevel@tonic-gate 816*0Sstevel@tonic-gate #if !defined(__i386) && !defined(__amd64) 817*0Sstevel@tonic-gate case OPROMGETFBNAME: 818*0Sstevel@tonic-gate /* 819*0Sstevel@tonic-gate * Return stdoutpath, if it's a frame buffer. 820*0Sstevel@tonic-gate * Yes, we are comparing a possibly longer string against 821*0Sstevel@tonic-gate * the size we're really going to copy, but so what? 822*0Sstevel@tonic-gate */ 823*0Sstevel@tonic-gate if ((getzoneid() == GLOBAL_ZONEID) && 824*0Sstevel@tonic-gate (prom_stdout_is_framebuffer() != 0) && 825*0Sstevel@tonic-gate (userbufsize > strlen(prom_stdoutpath()))) { 826*0Sstevel@tonic-gate prom_strip_options(prom_stdoutpath(), 827*0Sstevel@tonic-gate opp->oprom_array); /* strip options and copy */ 828*0Sstevel@tonic-gate valsize = opp->oprom_size = strlen(opp->oprom_array); 829*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, 830*0Sstevel@tonic-gate valsize + 1 + sizeof (uint_t)) != 0) 831*0Sstevel@tonic-gate error = EFAULT; 832*0Sstevel@tonic-gate } else 833*0Sstevel@tonic-gate error = EINVAL; 834*0Sstevel@tonic-gate break; 835*0Sstevel@tonic-gate 836*0Sstevel@tonic-gate /* 837*0Sstevel@tonic-gate * Convert a logical or physical device path to prom device path 838*0Sstevel@tonic-gate */ 839*0Sstevel@tonic-gate case OPROMDEV2PROMNAME: { 840*0Sstevel@tonic-gate char *prom_name; 841*0Sstevel@tonic-gate 842*0Sstevel@tonic-gate /* 843*0Sstevel@tonic-gate * The input argument, a pathname, is a NULL terminated string. 844*0Sstevel@tonic-gate */ 845*0Sstevel@tonic-gate if ((error = oprom_copyinstr(arg, opp->oprom_array, 846*0Sstevel@tonic-gate (size_t)userbufsize, MAXPATHLEN)) != 0) { 847*0Sstevel@tonic-gate break; 848*0Sstevel@tonic-gate } 849*0Sstevel@tonic-gate 850*0Sstevel@tonic-gate prom_name = kmem_alloc(userbufsize, KM_SLEEP); 851*0Sstevel@tonic-gate 852*0Sstevel@tonic-gate /* 853*0Sstevel@tonic-gate * convert the devfs path to an equivalent prom path 854*0Sstevel@tonic-gate */ 855*0Sstevel@tonic-gate error = i_devname_to_promname(opp->oprom_array, prom_name, 856*0Sstevel@tonic-gate userbufsize); 857*0Sstevel@tonic-gate 858*0Sstevel@tonic-gate if (error != 0) { 859*0Sstevel@tonic-gate kmem_free(prom_name, userbufsize); 860*0Sstevel@tonic-gate break; 861*0Sstevel@tonic-gate } 862*0Sstevel@tonic-gate 863*0Sstevel@tonic-gate for (valsize = 0; valsize < userbufsize; valsize++) { 864*0Sstevel@tonic-gate opp->oprom_array[valsize] = prom_name[valsize]; 865*0Sstevel@tonic-gate 866*0Sstevel@tonic-gate if ((valsize > 0) && (prom_name[valsize] == '\0') && 867*0Sstevel@tonic-gate (prom_name[valsize-1] == '\0')) { 868*0Sstevel@tonic-gate break; 869*0Sstevel@tonic-gate } 870*0Sstevel@tonic-gate } 871*0Sstevel@tonic-gate opp->oprom_size = valsize; 872*0Sstevel@tonic-gate 873*0Sstevel@tonic-gate kmem_free(prom_name, userbufsize); 874*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, sizeof (uint_t) + valsize) != 0) 875*0Sstevel@tonic-gate error = EFAULT; 876*0Sstevel@tonic-gate 877*0Sstevel@tonic-gate } break; 878*0Sstevel@tonic-gate 879*0Sstevel@tonic-gate case OPROMSETOPT: 880*0Sstevel@tonic-gate case OPROMSETOPT2: { 881*0Sstevel@tonic-gate int namebuflen; 882*0Sstevel@tonic-gate int valbuflen; 883*0Sstevel@tonic-gate 884*0Sstevel@tonic-gate if ((prom_is_openprom() == 0) || 885*0Sstevel@tonic-gate (node_id == OBP_NONODE) || (node_id == OBP_BADNODE)) { 886*0Sstevel@tonic-gate error = EINVAL; 887*0Sstevel@tonic-gate break; 888*0Sstevel@tonic-gate } 889*0Sstevel@tonic-gate 890*0Sstevel@tonic-gate /* 891*0Sstevel@tonic-gate * The arguments are a property name and a value. 892*0Sstevel@tonic-gate * Copy in the entire user buffer. 893*0Sstevel@tonic-gate */ 894*0Sstevel@tonic-gate if (copyin(((caddr_t)arg + sizeof (uint_t)), 895*0Sstevel@tonic-gate opp->oprom_array, userbufsize) != 0) { 896*0Sstevel@tonic-gate error = EFAULT; 897*0Sstevel@tonic-gate break; 898*0Sstevel@tonic-gate } 899*0Sstevel@tonic-gate 900*0Sstevel@tonic-gate /* 901*0Sstevel@tonic-gate * The property name is the first string, value second 902*0Sstevel@tonic-gate */ 903*0Sstevel@tonic-gate namebuflen = strlen(opp->oprom_array); 904*0Sstevel@tonic-gate valbuf = opp->oprom_array + namebuflen + 1; 905*0Sstevel@tonic-gate valbuflen = strlen(valbuf); 906*0Sstevel@tonic-gate 907*0Sstevel@tonic-gate if (cmd == OPROMSETOPT) { 908*0Sstevel@tonic-gate valsize = valbuflen + 1; /* +1 for the '\0' */ 909*0Sstevel@tonic-gate } else { 910*0Sstevel@tonic-gate if ((namebuflen + 1 + valbuflen + 1) > userbufsize) { 911*0Sstevel@tonic-gate error = EINVAL; 912*0Sstevel@tonic-gate break; 913*0Sstevel@tonic-gate } 914*0Sstevel@tonic-gate valsize = (opp->oprom_array + userbufsize) - valbuf; 915*0Sstevel@tonic-gate } 916*0Sstevel@tonic-gate 917*0Sstevel@tonic-gate /* 918*0Sstevel@tonic-gate * 4010173: 'name' is not an option, but it is a property. 919*0Sstevel@tonic-gate */ 920*0Sstevel@tonic-gate if (strcmp(opp->oprom_array, "name") == 0) 921*0Sstevel@tonic-gate error = EINVAL; 922*0Sstevel@tonic-gate else if (prom_setprop(node_id, opp->oprom_array, 923*0Sstevel@tonic-gate valbuf, valsize) < 0) 924*0Sstevel@tonic-gate error = EINVAL; 925*0Sstevel@tonic-gate 926*0Sstevel@tonic-gate } break; 927*0Sstevel@tonic-gate 928*0Sstevel@tonic-gate case OPROMREADY64: { 929*0Sstevel@tonic-gate struct openprom_opr64 *opr = 930*0Sstevel@tonic-gate (struct openprom_opr64 *)opp->oprom_array; 931*0Sstevel@tonic-gate int i; 932*0Sstevel@tonic-gate dnode_t id; 933*0Sstevel@tonic-gate 934*0Sstevel@tonic-gate if (userbufsize < sizeof (*opr)) { 935*0Sstevel@tonic-gate error = EINVAL; 936*0Sstevel@tonic-gate break; 937*0Sstevel@tonic-gate } 938*0Sstevel@tonic-gate 939*0Sstevel@tonic-gate valsize = userbufsize - 940*0Sstevel@tonic-gate offsetof(struct openprom_opr64, message); 941*0Sstevel@tonic-gate 942*0Sstevel@tonic-gate i = prom_version_check(opr->message, valsize, &id); 943*0Sstevel@tonic-gate opr->return_code = i; 944*0Sstevel@tonic-gate opr->nodeid = (int)id; 945*0Sstevel@tonic-gate 946*0Sstevel@tonic-gate valsize = offsetof(struct openprom_opr64, message); 947*0Sstevel@tonic-gate valsize += strlen(opr->message) + 1; 948*0Sstevel@tonic-gate 949*0Sstevel@tonic-gate /* 950*0Sstevel@tonic-gate * copyout only the part of the user buffer we need to. 951*0Sstevel@tonic-gate */ 952*0Sstevel@tonic-gate if (copyout(opp, (void *)arg, 953*0Sstevel@tonic-gate (size_t)(min((uint_t)valsize, userbufsize) + 954*0Sstevel@tonic-gate sizeof (uint_t))) != 0) 955*0Sstevel@tonic-gate error = EFAULT; 956*0Sstevel@tonic-gate break; 957*0Sstevel@tonic-gate 958*0Sstevel@tonic-gate } /* case OPROMREADY64 */ 959*0Sstevel@tonic-gate 960*0Sstevel@tonic-gate case WANBOOT_SETKEY: { 961*0Sstevel@tonic-gate struct wankeyio *wp; 962*0Sstevel@tonic-gate int reslen; 963*0Sstevel@tonic-gate int status; 964*0Sstevel@tonic-gate int rv; 965*0Sstevel@tonic-gate int i; 966*0Sstevel@tonic-gate 967*0Sstevel@tonic-gate /* 968*0Sstevel@tonic-gate * The argument is a struct wankeyio. Validate it as best 969*0Sstevel@tonic-gate * we can. 970*0Sstevel@tonic-gate */ 971*0Sstevel@tonic-gate if (userbufsize != (sizeof (struct wankeyio))) { 972*0Sstevel@tonic-gate error = EINVAL; 973*0Sstevel@tonic-gate break; 974*0Sstevel@tonic-gate } 975*0Sstevel@tonic-gate if (copyin(((caddr_t)arg + sizeof (uint_t)), 976*0Sstevel@tonic-gate opp->oprom_array, sizeof (struct wankeyio)) != 0) { 977*0Sstevel@tonic-gate error = EFAULT; 978*0Sstevel@tonic-gate break; 979*0Sstevel@tonic-gate } 980*0Sstevel@tonic-gate wp = (struct wankeyio *)opp->oprom_array; 981*0Sstevel@tonic-gate 982*0Sstevel@tonic-gate /* check for key name and key size overflow */ 983*0Sstevel@tonic-gate for (i = 0; i < WANBOOT_MAXKEYNAMELEN; i++) 984*0Sstevel@tonic-gate if (wp->wk_keyname[i] == '\0') 985*0Sstevel@tonic-gate break; 986*0Sstevel@tonic-gate if ((i == WANBOOT_MAXKEYNAMELEN) || 987*0Sstevel@tonic-gate (wp->wk_keysize > WANBOOT_MAXKEYLEN)) { 988*0Sstevel@tonic-gate error = EINVAL; 989*0Sstevel@tonic-gate break; 990*0Sstevel@tonic-gate } 991*0Sstevel@tonic-gate 992*0Sstevel@tonic-gate rv = prom_set_security_key(wp->wk_keyname, wp->wk_u.key, 993*0Sstevel@tonic-gate wp->wk_keysize, &reslen, &status); 994*0Sstevel@tonic-gate if (rv) 995*0Sstevel@tonic-gate error = EIO; 996*0Sstevel@tonic-gate else 997*0Sstevel@tonic-gate switch (status) { 998*0Sstevel@tonic-gate case 0: 999*0Sstevel@tonic-gate error = 0; 1000*0Sstevel@tonic-gate break; 1001*0Sstevel@tonic-gate 1002*0Sstevel@tonic-gate case -2: /* out of key storage space */ 1003*0Sstevel@tonic-gate error = ENOSPC; 1004*0Sstevel@tonic-gate break; 1005*0Sstevel@tonic-gate 1006*0Sstevel@tonic-gate case -3: /* key name or value too long */ 1007*0Sstevel@tonic-gate error = EINVAL; 1008*0Sstevel@tonic-gate break; 1009*0Sstevel@tonic-gate 1010*0Sstevel@tonic-gate case -4: /* can't delete: no such key */ 1011*0Sstevel@tonic-gate error = ENOENT; 1012*0Sstevel@tonic-gate break; 1013*0Sstevel@tonic-gate 1014*0Sstevel@tonic-gate case -1: /* unspecified error */ 1015*0Sstevel@tonic-gate default: /* this should not happen */ 1016*0Sstevel@tonic-gate error = EIO; 1017*0Sstevel@tonic-gate break; 1018*0Sstevel@tonic-gate } 1019*0Sstevel@tonic-gate break; 1020*0Sstevel@tonic-gate } /* case WANBOOT_SETKEY */ 1021*0Sstevel@tonic-gate #endif /* !__i386 && !__amd64 */ 1022*0Sstevel@tonic-gate } /* switch (cmd) */ 1023*0Sstevel@tonic-gate 1024*0Sstevel@tonic-gate kmem_free(opp, userbufsize + sizeof (uint_t) + 1); 1025*0Sstevel@tonic-gate return (error); 1026*0Sstevel@tonic-gate } 1027*0Sstevel@tonic-gate 1028*0Sstevel@tonic-gate /*ARGSUSED*/ 1029*0Sstevel@tonic-gate static int 1030*0Sstevel@tonic-gate opromioctl(dev_t dev, int cmd, intptr_t arg, int mode, 1031*0Sstevel@tonic-gate cred_t *credp, int *rvalp) 1032*0Sstevel@tonic-gate { 1033*0Sstevel@tonic-gate struct oprom_state *st; 1034*0Sstevel@tonic-gate struct opromioctl_args arg_block; 1035*0Sstevel@tonic-gate 1036*0Sstevel@tonic-gate if (getminor(dev) >= MAX_OPENS) 1037*0Sstevel@tonic-gate return (ENXIO); 1038*0Sstevel@tonic-gate 1039*0Sstevel@tonic-gate st = &oprom_state[getminor(dev)]; 1040*0Sstevel@tonic-gate ASSERT(st->already_open); 1041*0Sstevel@tonic-gate arg_block.st = st; 1042*0Sstevel@tonic-gate arg_block.cmd = cmd; 1043*0Sstevel@tonic-gate arg_block.arg = arg; 1044*0Sstevel@tonic-gate arg_block.mode = mode; 1045*0Sstevel@tonic-gate return (prom_tree_access(opromioctl_cb, &arg_block, &st->tree_gen)); 1046*0Sstevel@tonic-gate } 1047*0Sstevel@tonic-gate 1048*0Sstevel@tonic-gate /* 1049*0Sstevel@tonic-gate * Copyin string and verify the actual string length is less than maxsize 1050*0Sstevel@tonic-gate * specified by the caller. 1051*0Sstevel@tonic-gate * 1052*0Sstevel@tonic-gate * Currently, maxsize is either OBP_MAXPROPNAME for property names 1053*0Sstevel@tonic-gate * or MAXPATHLEN for device path names. userbufsize is specified 1054*0Sstevel@tonic-gate * by the userland caller. 1055*0Sstevel@tonic-gate */ 1056*0Sstevel@tonic-gate static int 1057*0Sstevel@tonic-gate oprom_copyinstr(intptr_t arg, char *buf, size_t bufsize, size_t maxsize) 1058*0Sstevel@tonic-gate { 1059*0Sstevel@tonic-gate int error; 1060*0Sstevel@tonic-gate size_t actual_len; 1061*0Sstevel@tonic-gate 1062*0Sstevel@tonic-gate if ((error = copyinstr(((caddr_t)arg + sizeof (uint_t)), 1063*0Sstevel@tonic-gate buf, bufsize, &actual_len)) != 0) { 1064*0Sstevel@tonic-gate return (error); 1065*0Sstevel@tonic-gate } 1066*0Sstevel@tonic-gate if ((actual_len == 0) || (actual_len > maxsize)) { 1067*0Sstevel@tonic-gate return (EINVAL); 1068*0Sstevel@tonic-gate } 1069*0Sstevel@tonic-gate 1070*0Sstevel@tonic-gate return (0); 1071*0Sstevel@tonic-gate } 1072*0Sstevel@tonic-gate 1073*0Sstevel@tonic-gate /* 1074*0Sstevel@tonic-gate * Check dnode_t passed in from userland 1075*0Sstevel@tonic-gate */ 1076*0Sstevel@tonic-gate static int 1077*0Sstevel@tonic-gate oprom_checknodeid(dnode_t node_id, dnode_t current_id) 1078*0Sstevel@tonic-gate { 1079*0Sstevel@tonic-gate int depth; 1080*0Sstevel@tonic-gate dnode_t id[OBP_STACKDEPTH]; 1081*0Sstevel@tonic-gate 1082*0Sstevel@tonic-gate /* 1083*0Sstevel@tonic-gate * optimized path 1084*0Sstevel@tonic-gate */ 1085*0Sstevel@tonic-gate if (node_id == 0) { 1086*0Sstevel@tonic-gate return (1); 1087*0Sstevel@tonic-gate } 1088*0Sstevel@tonic-gate if (node_id == OBP_BADNODE) { 1089*0Sstevel@tonic-gate return (0); 1090*0Sstevel@tonic-gate } 1091*0Sstevel@tonic-gate if ((current_id != OBP_BADNODE) && ((node_id == current_id) || 1092*0Sstevel@tonic-gate (node_id == prom_nextnode(current_id)) || 1093*0Sstevel@tonic-gate (node_id == prom_childnode(current_id)))) { 1094*0Sstevel@tonic-gate return (1); 1095*0Sstevel@tonic-gate } 1096*0Sstevel@tonic-gate 1097*0Sstevel@tonic-gate /* 1098*0Sstevel@tonic-gate * long path: walk from root till we find node_id 1099*0Sstevel@tonic-gate */ 1100*0Sstevel@tonic-gate depth = 1; 1101*0Sstevel@tonic-gate id[0] = prom_nextnode((dnode_t)0); 1102*0Sstevel@tonic-gate 1103*0Sstevel@tonic-gate while (depth) { 1104*0Sstevel@tonic-gate if (id[depth - 1] == node_id) 1105*0Sstevel@tonic-gate return (1); /* node_id found */ 1106*0Sstevel@tonic-gate 1107*0Sstevel@tonic-gate if (id[depth] = prom_childnode(id[depth - 1])) { 1108*0Sstevel@tonic-gate depth++; 1109*0Sstevel@tonic-gate continue; 1110*0Sstevel@tonic-gate } 1111*0Sstevel@tonic-gate 1112*0Sstevel@tonic-gate while (depth && 1113*0Sstevel@tonic-gate ((id[depth - 1] = prom_nextnode(id[depth - 1])) == 0)) 1114*0Sstevel@tonic-gate depth--; 1115*0Sstevel@tonic-gate } 1116*0Sstevel@tonic-gate return (0); /* node_id not found */ 1117*0Sstevel@tonic-gate } 1118*0Sstevel@tonic-gate 1119*0Sstevel@tonic-gate static int 1120*0Sstevel@tonic-gate oprom_copytree(struct oprom_state *st, uint_t flag) 1121*0Sstevel@tonic-gate { 1122*0Sstevel@tonic-gate ASSERT(st->snapshot == NULL && st->size == 0); 1123*0Sstevel@tonic-gate return (oprom_copynode( 1124*0Sstevel@tonic-gate prom_nextnode(0), flag, &st->snapshot, &st->size)); 1125*0Sstevel@tonic-gate } 1126*0Sstevel@tonic-gate 1127*0Sstevel@tonic-gate static int 1128*0Sstevel@tonic-gate oprom_snapshot(struct oprom_state *st, intptr_t arg) 1129*0Sstevel@tonic-gate { 1130*0Sstevel@tonic-gate uint_t flag; 1131*0Sstevel@tonic-gate 1132*0Sstevel@tonic-gate if (oprom_setstate(st, IOC_SNAP) == -1) 1133*0Sstevel@tonic-gate return (EBUSY); 1134*0Sstevel@tonic-gate 1135*0Sstevel@tonic-gate /* copyin flag and create snapshot */ 1136*0Sstevel@tonic-gate if ((copyin((void *)arg, &flag, sizeof (uint_t)) != 0) || 1137*0Sstevel@tonic-gate (oprom_copytree(st, flag) != 0)) { 1138*0Sstevel@tonic-gate (void) oprom_setstate(st, IOC_IDLE); 1139*0Sstevel@tonic-gate return (EFAULT); 1140*0Sstevel@tonic-gate } 1141*0Sstevel@tonic-gate 1142*0Sstevel@tonic-gate 1143*0Sstevel@tonic-gate /* copyout the size of the snapshot */ 1144*0Sstevel@tonic-gate flag = (uint_t)st->size; 1145*0Sstevel@tonic-gate if (copyout(&flag, (void *)arg, sizeof (uint_t)) != 0) { 1146*0Sstevel@tonic-gate kmem_free(st->snapshot, st->size); 1147*0Sstevel@tonic-gate st->snapshot = NULL; 1148*0Sstevel@tonic-gate st->size = 0; 1149*0Sstevel@tonic-gate (void) oprom_setstate(st, IOC_IDLE); 1150*0Sstevel@tonic-gate return (EFAULT); 1151*0Sstevel@tonic-gate } 1152*0Sstevel@tonic-gate 1153*0Sstevel@tonic-gate (void) oprom_setstate(st, IOC_DONE); 1154*0Sstevel@tonic-gate return (0); 1155*0Sstevel@tonic-gate } 1156*0Sstevel@tonic-gate 1157*0Sstevel@tonic-gate static int 1158*0Sstevel@tonic-gate oprom_copyout(struct oprom_state *st, intptr_t arg) 1159*0Sstevel@tonic-gate { 1160*0Sstevel@tonic-gate int error = 0; 1161*0Sstevel@tonic-gate uint_t size; 1162*0Sstevel@tonic-gate 1163*0Sstevel@tonic-gate if (oprom_setstate(st, IOC_COPY) == -1) 1164*0Sstevel@tonic-gate return (EBUSY); 1165*0Sstevel@tonic-gate 1166*0Sstevel@tonic-gate /* copyin size and copyout snapshot */ 1167*0Sstevel@tonic-gate if (copyin((void *)arg, &size, sizeof (uint_t)) != 0) 1168*0Sstevel@tonic-gate error = EFAULT; 1169*0Sstevel@tonic-gate else if (size < st->size) 1170*0Sstevel@tonic-gate error = EINVAL; 1171*0Sstevel@tonic-gate else if (copyout(st->snapshot, (void *)arg, st->size) != 0) 1172*0Sstevel@tonic-gate error = EFAULT; 1173*0Sstevel@tonic-gate 1174*0Sstevel@tonic-gate if (error) { 1175*0Sstevel@tonic-gate /* 1176*0Sstevel@tonic-gate * on error keep the snapshot until a successful 1177*0Sstevel@tonic-gate * copyout or when the driver is closed. 1178*0Sstevel@tonic-gate */ 1179*0Sstevel@tonic-gate (void) oprom_setstate(st, IOC_DONE); 1180*0Sstevel@tonic-gate return (error); 1181*0Sstevel@tonic-gate } 1182*0Sstevel@tonic-gate 1183*0Sstevel@tonic-gate kmem_free(st->snapshot, st->size); 1184*0Sstevel@tonic-gate st->snapshot = NULL; 1185*0Sstevel@tonic-gate st->size = 0; 1186*0Sstevel@tonic-gate (void) oprom_setstate(st, IOC_IDLE); 1187*0Sstevel@tonic-gate return (0); 1188*0Sstevel@tonic-gate } 1189*0Sstevel@tonic-gate 1190*0Sstevel@tonic-gate /* 1191*0Sstevel@tonic-gate * Copy all properties of nodeid into a single packed nvlist 1192*0Sstevel@tonic-gate */ 1193*0Sstevel@tonic-gate static int 1194*0Sstevel@tonic-gate oprom_copyprop(dnode_t nodeid, uint_t flag, nvlist_t *nvl) 1195*0Sstevel@tonic-gate { 1196*0Sstevel@tonic-gate int proplen; 1197*0Sstevel@tonic-gate char *propname, *propval, *buf1, *buf2; 1198*0Sstevel@tonic-gate 1199*0Sstevel@tonic-gate ASSERT(nvl != NULL); 1200*0Sstevel@tonic-gate 1201*0Sstevel@tonic-gate /* 1202*0Sstevel@tonic-gate * non verbose mode, get the "name" property only 1203*0Sstevel@tonic-gate */ 1204*0Sstevel@tonic-gate if (flag == 0) { 1205*0Sstevel@tonic-gate proplen = prom_getproplen(nodeid, "name"); 1206*0Sstevel@tonic-gate if (proplen <= 0) { 1207*0Sstevel@tonic-gate cmn_err(CE_WARN, 1208*0Sstevel@tonic-gate "failed to get the name of openprom node 0x%x", 1209*0Sstevel@tonic-gate nodeid); 1210*0Sstevel@tonic-gate (void) nvlist_add_string(nvl, "name", ""); 1211*0Sstevel@tonic-gate return (0); 1212*0Sstevel@tonic-gate } 1213*0Sstevel@tonic-gate propval = kmem_zalloc(proplen + 1, KM_SLEEP); 1214*0Sstevel@tonic-gate (void) prom_getprop(nodeid, "name", propval); 1215*0Sstevel@tonic-gate (void) nvlist_add_string(nvl, "name", propval); 1216*0Sstevel@tonic-gate kmem_free(propval, proplen + 1); 1217*0Sstevel@tonic-gate return (0); 1218*0Sstevel@tonic-gate } 1219*0Sstevel@tonic-gate 1220*0Sstevel@tonic-gate /* 1221*0Sstevel@tonic-gate * Ask for first property by passing a NULL string 1222*0Sstevel@tonic-gate */ 1223*0Sstevel@tonic-gate buf1 = kmem_alloc(OBP_MAXPROPNAME, KM_SLEEP); 1224*0Sstevel@tonic-gate buf2 = kmem_zalloc(OBP_MAXPROPNAME, KM_SLEEP); 1225*0Sstevel@tonic-gate buf1[0] = '\0'; 1226*0Sstevel@tonic-gate while (propname = (char *)prom_nextprop(nodeid, buf1, buf2)) { 1227*0Sstevel@tonic-gate if (strlen(propname) == 0) 1228*0Sstevel@tonic-gate break; /* end of prop list */ 1229*0Sstevel@tonic-gate (void) strcpy(buf1, propname); 1230*0Sstevel@tonic-gate 1231*0Sstevel@tonic-gate proplen = prom_getproplen(nodeid, propname); 1232*0Sstevel@tonic-gate if (proplen == 0) { 1233*0Sstevel@tonic-gate /* boolean property */ 1234*0Sstevel@tonic-gate (void) nvlist_add_boolean(nvl, propname); 1235*0Sstevel@tonic-gate continue; 1236*0Sstevel@tonic-gate } 1237*0Sstevel@tonic-gate /* add 1 for null termination in case of a string */ 1238*0Sstevel@tonic-gate propval = kmem_zalloc(proplen + 1, KM_SLEEP); 1239*0Sstevel@tonic-gate (void) prom_getprop(nodeid, propname, propval); 1240*0Sstevel@tonic-gate (void) nvlist_add_byte_array(nvl, propname, 1241*0Sstevel@tonic-gate (uchar_t *)propval, proplen + 1); 1242*0Sstevel@tonic-gate kmem_free(propval, proplen + 1); 1243*0Sstevel@tonic-gate bzero(buf2, OBP_MAXPROPNAME); 1244*0Sstevel@tonic-gate } 1245*0Sstevel@tonic-gate 1246*0Sstevel@tonic-gate kmem_free(buf1, OBP_MAXPROPNAME); 1247*0Sstevel@tonic-gate kmem_free(buf2, OBP_MAXPROPNAME); 1248*0Sstevel@tonic-gate 1249*0Sstevel@tonic-gate return (0); 1250*0Sstevel@tonic-gate } 1251*0Sstevel@tonic-gate 1252*0Sstevel@tonic-gate /* 1253*0Sstevel@tonic-gate * Copy all children and descendents into a a packed nvlist 1254*0Sstevel@tonic-gate */ 1255*0Sstevel@tonic-gate static int 1256*0Sstevel@tonic-gate oprom_copychild(dnode_t nodeid, uint_t flag, char **buf, size_t *size) 1257*0Sstevel@tonic-gate { 1258*0Sstevel@tonic-gate nvlist_t *nvl; 1259*0Sstevel@tonic-gate dnode_t child = prom_childnode(nodeid); 1260*0Sstevel@tonic-gate 1261*0Sstevel@tonic-gate if (child == 0) 1262*0Sstevel@tonic-gate return (0); 1263*0Sstevel@tonic-gate 1264*0Sstevel@tonic-gate (void) nvlist_alloc(&nvl, 0, KM_SLEEP); 1265*0Sstevel@tonic-gate while (child != 0) { 1266*0Sstevel@tonic-gate char *nodebuf = NULL; 1267*0Sstevel@tonic-gate size_t nodesize = 0; 1268*0Sstevel@tonic-gate if (oprom_copynode(child, flag, &nodebuf, &nodesize)) { 1269*0Sstevel@tonic-gate nvlist_free(nvl); 1270*0Sstevel@tonic-gate cmn_err(CE_WARN, "failed to copy nodeid 0x%x", child); 1271*0Sstevel@tonic-gate return (-1); 1272*0Sstevel@tonic-gate } 1273*0Sstevel@tonic-gate (void) nvlist_add_byte_array(nvl, "node", 1274*0Sstevel@tonic-gate (uchar_t *)nodebuf, nodesize); 1275*0Sstevel@tonic-gate kmem_free(nodebuf, nodesize); 1276*0Sstevel@tonic-gate child = prom_nextnode(child); 1277*0Sstevel@tonic-gate } 1278*0Sstevel@tonic-gate 1279*0Sstevel@tonic-gate (void) nvlist_pack(nvl, buf, size, NV_ENCODE_NATIVE, KM_SLEEP); 1280*0Sstevel@tonic-gate nvlist_free(nvl); 1281*0Sstevel@tonic-gate return (0); 1282*0Sstevel@tonic-gate } 1283*0Sstevel@tonic-gate 1284*0Sstevel@tonic-gate /* 1285*0Sstevel@tonic-gate * Copy a node into a packed nvlist 1286*0Sstevel@tonic-gate */ 1287*0Sstevel@tonic-gate static int 1288*0Sstevel@tonic-gate oprom_copynode(dnode_t nodeid, uint_t flag, char **buf, size_t *size) 1289*0Sstevel@tonic-gate { 1290*0Sstevel@tonic-gate int error = 0; 1291*0Sstevel@tonic-gate nvlist_t *nvl; 1292*0Sstevel@tonic-gate char *childlist = NULL; 1293*0Sstevel@tonic-gate size_t childsize = 0; 1294*0Sstevel@tonic-gate 1295*0Sstevel@tonic-gate (void) nvlist_alloc(&nvl, NV_UNIQUE_NAME, KM_SLEEP); 1296*0Sstevel@tonic-gate ASSERT(nvl != NULL); 1297*0Sstevel@tonic-gate 1298*0Sstevel@tonic-gate /* @nodeid -- @ is not a legal char in a 1275 property name */ 1299*0Sstevel@tonic-gate (void) nvlist_add_int32(nvl, "@nodeid", (int32_t)nodeid); 1300*0Sstevel@tonic-gate 1301*0Sstevel@tonic-gate /* properties */ 1302*0Sstevel@tonic-gate if (error = oprom_copyprop(nodeid, flag, nvl)) 1303*0Sstevel@tonic-gate goto fail; 1304*0Sstevel@tonic-gate 1305*0Sstevel@tonic-gate /* children */ 1306*0Sstevel@tonic-gate error = oprom_copychild(nodeid, flag, &childlist, &childsize); 1307*0Sstevel@tonic-gate if (error != 0) 1308*0Sstevel@tonic-gate goto fail; 1309*0Sstevel@tonic-gate if (childlist != NULL) { 1310*0Sstevel@tonic-gate (void) nvlist_add_byte_array(nvl, "@child", 1311*0Sstevel@tonic-gate (uchar_t *)childlist, (uint_t)childsize); 1312*0Sstevel@tonic-gate kmem_free(childlist, childsize); 1313*0Sstevel@tonic-gate } 1314*0Sstevel@tonic-gate 1315*0Sstevel@tonic-gate /* pack into contiguous buffer */ 1316*0Sstevel@tonic-gate error = nvlist_pack(nvl, buf, size, NV_ENCODE_NATIVE, KM_SLEEP); 1317*0Sstevel@tonic-gate 1318*0Sstevel@tonic-gate fail: 1319*0Sstevel@tonic-gate nvlist_free(nvl); 1320*0Sstevel@tonic-gate return (error); 1321*0Sstevel@tonic-gate } 1322*0Sstevel@tonic-gate 1323*0Sstevel@tonic-gate /* 1324*0Sstevel@tonic-gate * The driver is stateful across OPROMSNAPSHOT and OPROMCOPYOUT. 1325*0Sstevel@tonic-gate * This function encapsulates the state machine: 1326*0Sstevel@tonic-gate * 1327*0Sstevel@tonic-gate * -> IOC_IDLE -> IOC_SNAP -> IOC_DONE -> IOC_COPY -> 1328*0Sstevel@tonic-gate * | SNAPSHOT COPYOUT | 1329*0Sstevel@tonic-gate * -------------------------------------------------- 1330*0Sstevel@tonic-gate * 1331*0Sstevel@tonic-gate * Returns 0 on success and -1 on failure 1332*0Sstevel@tonic-gate */ 1333*0Sstevel@tonic-gate static int 1334*0Sstevel@tonic-gate oprom_setstate(struct oprom_state *st, int16_t new_state) 1335*0Sstevel@tonic-gate { 1336*0Sstevel@tonic-gate int ret = 0; 1337*0Sstevel@tonic-gate 1338*0Sstevel@tonic-gate mutex_enter(&oprom_lock); 1339*0Sstevel@tonic-gate switch (new_state) { 1340*0Sstevel@tonic-gate case IOC_IDLE: 1341*0Sstevel@tonic-gate case IOC_DONE: 1342*0Sstevel@tonic-gate break; 1343*0Sstevel@tonic-gate case IOC_SNAP: 1344*0Sstevel@tonic-gate if (st->ioc_state != IOC_IDLE) 1345*0Sstevel@tonic-gate ret = -1; 1346*0Sstevel@tonic-gate break; 1347*0Sstevel@tonic-gate case IOC_COPY: 1348*0Sstevel@tonic-gate if (st->ioc_state != IOC_DONE) 1349*0Sstevel@tonic-gate ret = -1; 1350*0Sstevel@tonic-gate break; 1351*0Sstevel@tonic-gate default: 1352*0Sstevel@tonic-gate ret = -1; 1353*0Sstevel@tonic-gate } 1354*0Sstevel@tonic-gate 1355*0Sstevel@tonic-gate if (ret == 0) 1356*0Sstevel@tonic-gate st->ioc_state = new_state; 1357*0Sstevel@tonic-gate else 1358*0Sstevel@tonic-gate cmn_err(CE_NOTE, "incorrect state transition from %d to %d", 1359*0Sstevel@tonic-gate st->ioc_state, new_state); 1360*0Sstevel@tonic-gate mutex_exit(&oprom_lock); 1361*0Sstevel@tonic-gate return (ret); 1362*0Sstevel@tonic-gate } 1363