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 2004 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 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 4.3 BSD 32*0Sstevel@tonic-gate * under license from the Regents of the University of California. 33*0Sstevel@tonic-gate */ 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate /* 38*0Sstevel@tonic-gate * Get file attribute information through a file name or a file descriptor. 39*0Sstevel@tonic-gate */ 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #include <sys/param.h> 42*0Sstevel@tonic-gate #include <sys/isa_defs.h> 43*0Sstevel@tonic-gate #include <sys/types.h> 44*0Sstevel@tonic-gate #include <sys/sysmacros.h> 45*0Sstevel@tonic-gate #include <sys/cred.h> 46*0Sstevel@tonic-gate #include <sys/systm.h> 47*0Sstevel@tonic-gate #include <sys/errno.h> 48*0Sstevel@tonic-gate #include <sys/fcntl.h> 49*0Sstevel@tonic-gate #include <sys/pathname.h> 50*0Sstevel@tonic-gate #include <sys/stat.h> 51*0Sstevel@tonic-gate #include <sys/vfs.h> 52*0Sstevel@tonic-gate #include <sys/vnode.h> 53*0Sstevel@tonic-gate #include <sys/mode.h> 54*0Sstevel@tonic-gate #include <sys/file.h> 55*0Sstevel@tonic-gate #include <sys/proc.h> 56*0Sstevel@tonic-gate #include <sys/uio.h> 57*0Sstevel@tonic-gate #include <sys/ioreq.h> 58*0Sstevel@tonic-gate #include <sys/debug.h> 59*0Sstevel@tonic-gate #include <sys/cmn_err.h> 60*0Sstevel@tonic-gate #include <c2/audit.h> 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate /* 63*0Sstevel@tonic-gate * Get the vp to be stated and the cred to be used for the call 64*0Sstevel@tonic-gate * to VOP_GETATTR 65*0Sstevel@tonic-gate */ 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate /* 68*0Sstevel@tonic-gate * nmflag has the following values 69*0Sstevel@tonic-gate * 70*0Sstevel@tonic-gate * 1 - Always do lookup. i.e. stat, lstat. 71*0Sstevel@tonic-gate * 2 - Name is optional i.e. fstatat 72*0Sstevel@tonic-gate * 0 - Don't lookup name, vp is in file_p. i.e. fstat 73*0Sstevel@tonic-gate * 74*0Sstevel@tonic-gate */ 75*0Sstevel@tonic-gate static int 76*0Sstevel@tonic-gate cstatat_getvp(int fd, char *name, int nmflag, 77*0Sstevel@tonic-gate int follow, vnode_t **vp, cred_t **cred) 78*0Sstevel@tonic-gate { 79*0Sstevel@tonic-gate vnode_t *startvp; 80*0Sstevel@tonic-gate file_t *fp; 81*0Sstevel@tonic-gate int error; 82*0Sstevel@tonic-gate cred_t *cr; 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate *vp = NULL; 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* 87*0Sstevel@tonic-gate * Only return EFAULT for fstatat when fd == AT_FDCWD && name == NULL 88*0Sstevel@tonic-gate */ 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate if (fd == AT_FDCWD) { 91*0Sstevel@tonic-gate if (name != NULL || nmflag != 2) { 92*0Sstevel@tonic-gate startvp = NULL; 93*0Sstevel@tonic-gate cr = CRED(); 94*0Sstevel@tonic-gate crhold(cr); 95*0Sstevel@tonic-gate } else 96*0Sstevel@tonic-gate return (EFAULT); 97*0Sstevel@tonic-gate } else { 98*0Sstevel@tonic-gate char startchar; 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate if (nmflag == 1 || (nmflag == 2 && name != NULL)) { 101*0Sstevel@tonic-gate if (copyin(name, &startchar, sizeof (char))) 102*0Sstevel@tonic-gate return (EFAULT); 103*0Sstevel@tonic-gate } else { 104*0Sstevel@tonic-gate startchar = '\0'; 105*0Sstevel@tonic-gate } 106*0Sstevel@tonic-gate if (startchar != '/' || nmflag == 0) { 107*0Sstevel@tonic-gate if ((fp = getf(fd)) == NULL) { 108*0Sstevel@tonic-gate return (EBADF); 109*0Sstevel@tonic-gate } 110*0Sstevel@tonic-gate startvp = fp->f_vnode; 111*0Sstevel@tonic-gate cr = fp->f_cred; 112*0Sstevel@tonic-gate crhold(cr); 113*0Sstevel@tonic-gate VN_HOLD(startvp); 114*0Sstevel@tonic-gate releasef(fd); 115*0Sstevel@tonic-gate } else { 116*0Sstevel@tonic-gate startvp = NULL; 117*0Sstevel@tonic-gate cr = CRED(); 118*0Sstevel@tonic-gate crhold(cr); 119*0Sstevel@tonic-gate } 120*0Sstevel@tonic-gate } 121*0Sstevel@tonic-gate *cred = cr; 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate #ifdef C2_AUDIT 124*0Sstevel@tonic-gate if (audit_active) 125*0Sstevel@tonic-gate audit_setfsat_path(1); 126*0Sstevel@tonic-gate #endif /* C2_AUDIT */ 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate 129*0Sstevel@tonic-gate if (nmflag == 1 || (nmflag == 2 && name != NULL)) { 130*0Sstevel@tonic-gate lookup: 131*0Sstevel@tonic-gate if (error = lookupnameat(name, UIO_USERSPACE, follow, NULLVPP, 132*0Sstevel@tonic-gate vp, startvp)) { 133*0Sstevel@tonic-gate if (error == ESTALE) 134*0Sstevel@tonic-gate goto lookup; 135*0Sstevel@tonic-gate if (startvp != NULL) 136*0Sstevel@tonic-gate VN_RELE(startvp); 137*0Sstevel@tonic-gate crfree(cr); 138*0Sstevel@tonic-gate return (error); 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate if (startvp != NULL) 141*0Sstevel@tonic-gate VN_RELE(startvp); 142*0Sstevel@tonic-gate } else { 143*0Sstevel@tonic-gate *vp = startvp; 144*0Sstevel@tonic-gate } 145*0Sstevel@tonic-gate 146*0Sstevel@tonic-gate return (0); 147*0Sstevel@tonic-gate } 148*0Sstevel@tonic-gate 149*0Sstevel@tonic-gate /* 150*0Sstevel@tonic-gate * Native syscall interfaces: 151*0Sstevel@tonic-gate * 152*0Sstevel@tonic-gate * N-bit kernel, N-bit applications, N-bit file offsets 153*0Sstevel@tonic-gate */ 154*0Sstevel@tonic-gate 155*0Sstevel@tonic-gate static int cstatat(int, char *, int, struct stat *, int, int); 156*0Sstevel@tonic-gate static int cstat(vnode_t *vp, struct stat *, int, cred_t *); 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate int 159*0Sstevel@tonic-gate stat(char *fname, struct stat *sb) 160*0Sstevel@tonic-gate { 161*0Sstevel@tonic-gate return (cstatat(AT_FDCWD, fname, 1, sb, 0, ATTR_REAL)); 162*0Sstevel@tonic-gate } 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate int 165*0Sstevel@tonic-gate lstat(char *fname, struct stat *sb) 166*0Sstevel@tonic-gate { 167*0Sstevel@tonic-gate return (cstatat(AT_FDCWD, fname, 1, sb, AT_SYMLINK_NOFOLLOW, 0)); 168*0Sstevel@tonic-gate } 169*0Sstevel@tonic-gate 170*0Sstevel@tonic-gate /* 171*0Sstevel@tonic-gate * fstat can and should be fast, do an inline implementation here. 172*0Sstevel@tonic-gate */ 173*0Sstevel@tonic-gate #define FSTAT_BODY(fd, sb, statfn) \ 174*0Sstevel@tonic-gate { \ 175*0Sstevel@tonic-gate file_t *fp; \ 176*0Sstevel@tonic-gate int error; \ 177*0Sstevel@tonic-gate \ 178*0Sstevel@tonic-gate if ((fp = getf(fd)) == NULL) \ 179*0Sstevel@tonic-gate return (set_errno(EBADF)); \ 180*0Sstevel@tonic-gate if (audit_active) \ 181*0Sstevel@tonic-gate audit_setfsat_path(1); \ 182*0Sstevel@tonic-gate error = statfn(fp->f_vnode, sb, 0, fp->f_cred); \ 183*0Sstevel@tonic-gate releasef(fd); \ 184*0Sstevel@tonic-gate if (error) \ 185*0Sstevel@tonic-gate return (set_errno(error)); \ 186*0Sstevel@tonic-gate return (0); \ 187*0Sstevel@tonic-gate } 188*0Sstevel@tonic-gate 189*0Sstevel@tonic-gate int 190*0Sstevel@tonic-gate fstat(int fd, struct stat *sb) 191*0Sstevel@tonic-gate { 192*0Sstevel@tonic-gate FSTAT_BODY(fd, sb, cstat) 193*0Sstevel@tonic-gate } 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate int 196*0Sstevel@tonic-gate fstatat(int fd, char *name, struct stat *sb, int flags) 197*0Sstevel@tonic-gate { 198*0Sstevel@tonic-gate return (cstatat(fd, name, 2, sb, flags, 0)); 199*0Sstevel@tonic-gate } 200*0Sstevel@tonic-gate 201*0Sstevel@tonic-gate #if defined(__i386) || defined(__i386_COMPAT) 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate /* 204*0Sstevel@tonic-gate * Handle all the "extended" stat operations in the same way; 205*0Sstevel@tonic-gate * validate the version, then call the real handler. 206*0Sstevel@tonic-gate */ 207*0Sstevel@tonic-gate 208*0Sstevel@tonic-gate #define XSTAT_BODY(ver, f, s, fn) \ 209*0Sstevel@tonic-gate return (ver != _STAT_VER ? set_errno(EINVAL) : fn(f, s)); 210*0Sstevel@tonic-gate 211*0Sstevel@tonic-gate #endif /* __i386 || __i386_COMPAT */ 212*0Sstevel@tonic-gate 213*0Sstevel@tonic-gate #if defined(__i386) 214*0Sstevel@tonic-gate 215*0Sstevel@tonic-gate /* 216*0Sstevel@tonic-gate * Syscalls for i386 applications that issue {,l,f}xstat() directly 217*0Sstevel@tonic-gate */ 218*0Sstevel@tonic-gate int 219*0Sstevel@tonic-gate xstat(int version, char *fname, struct stat *sb) 220*0Sstevel@tonic-gate { 221*0Sstevel@tonic-gate XSTAT_BODY(version, fname, sb, stat) 222*0Sstevel@tonic-gate } 223*0Sstevel@tonic-gate 224*0Sstevel@tonic-gate int 225*0Sstevel@tonic-gate lxstat(int version, char *fname, struct stat *sb) 226*0Sstevel@tonic-gate { 227*0Sstevel@tonic-gate XSTAT_BODY(version, fname, sb, lstat) 228*0Sstevel@tonic-gate } 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate int 231*0Sstevel@tonic-gate fxstat(int version, int fd, struct stat *sb) 232*0Sstevel@tonic-gate { 233*0Sstevel@tonic-gate XSTAT_BODY(version, fd, sb, fstat) 234*0Sstevel@tonic-gate } 235*0Sstevel@tonic-gate 236*0Sstevel@tonic-gate #endif /* __i386 */ 237*0Sstevel@tonic-gate 238*0Sstevel@tonic-gate /* 239*0Sstevel@tonic-gate * Common code for stat(), lstat(), and fstat(). 240*0Sstevel@tonic-gate * (32-bit kernel, 32-bit applications, 32-bit files) 241*0Sstevel@tonic-gate * (64-bit kernel, 64-bit applications, 64-bit files) 242*0Sstevel@tonic-gate */ 243*0Sstevel@tonic-gate static int 244*0Sstevel@tonic-gate cstat(vnode_t *vp, struct stat *ubp, int flag, cred_t *cr) 245*0Sstevel@tonic-gate { 246*0Sstevel@tonic-gate struct vfssw *vswp; 247*0Sstevel@tonic-gate struct stat sb; 248*0Sstevel@tonic-gate vattr_t vattr; 249*0Sstevel@tonic-gate int error; 250*0Sstevel@tonic-gate 251*0Sstevel@tonic-gate vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE; 252*0Sstevel@tonic-gate if ((error = VOP_GETATTR(vp, &vattr, flag, cr)) != 0) 253*0Sstevel@tonic-gate return (error); 254*0Sstevel@tonic-gate #ifdef _ILP32 255*0Sstevel@tonic-gate /* 256*0Sstevel@tonic-gate * (32-bit kernel, 32-bit applications, 32-bit files) 257*0Sstevel@tonic-gate * NOTE: 32-bit kernel maintains a 64-bit unsigend va_size. 258*0Sstevel@tonic-gate * 259*0Sstevel@tonic-gate * st_size of devices (VBLK and VCHR special files) is a special case. 260*0Sstevel@tonic-gate * POSIX does not define size behavior for special files, so the 261*0Sstevel@tonic-gate * following Solaris specific behavior is not a violation. Solaris 262*0Sstevel@tonic-gate * returns the size of the device. 263*0Sstevel@tonic-gate * 264*0Sstevel@tonic-gate * For compatibility with 32-bit programs which happen to do stat() on 265*0Sstevel@tonic-gate * a (mknod) bigger than 2GB we suppress the large file EOVERFLOW and 266*0Sstevel@tonic-gate * instead we return the value MAXOFF32_T (LONG_MAX). 267*0Sstevel@tonic-gate * 268*0Sstevel@tonic-gate * 32-bit applications that care about the size of devices should be 269*0Sstevel@tonic-gate * built 64-bit or use a large file interface (lfcompile(5) or lf64(5)). 270*0Sstevel@tonic-gate */ 271*0Sstevel@tonic-gate if ((vattr.va_size > MAXOFF32_T) && 272*0Sstevel@tonic-gate ((vp->v_type == VBLK) || (vp->v_type == VCHR))) { 273*0Sstevel@tonic-gate /* OVERFLOW | UNKNOWN_SIZE */ 274*0Sstevel@tonic-gate vattr.va_size = MAXOFF32_T; 275*0Sstevel@tonic-gate } 276*0Sstevel@tonic-gate #endif /* _ILP32 */ 277*0Sstevel@tonic-gate if (vattr.va_size > MAXOFF_T || vattr.va_nblocks > LONG_MAX || 278*0Sstevel@tonic-gate vattr.va_nodeid > ULONG_MAX) 279*0Sstevel@tonic-gate return (EOVERFLOW); 280*0Sstevel@tonic-gate 281*0Sstevel@tonic-gate bzero(&sb, sizeof (sb)); 282*0Sstevel@tonic-gate sb.st_dev = vattr.va_fsid; 283*0Sstevel@tonic-gate sb.st_ino = (ino_t)vattr.va_nodeid; 284*0Sstevel@tonic-gate sb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode; 285*0Sstevel@tonic-gate sb.st_nlink = vattr.va_nlink; 286*0Sstevel@tonic-gate sb.st_uid = vattr.va_uid; 287*0Sstevel@tonic-gate sb.st_gid = vattr.va_gid; 288*0Sstevel@tonic-gate sb.st_rdev = vattr.va_rdev; 289*0Sstevel@tonic-gate sb.st_size = (off_t)vattr.va_size; 290*0Sstevel@tonic-gate sb.st_atim = vattr.va_atime; 291*0Sstevel@tonic-gate sb.st_mtim = vattr.va_mtime; 292*0Sstevel@tonic-gate sb.st_ctim = vattr.va_ctime; 293*0Sstevel@tonic-gate sb.st_blksize = vattr.va_blksize; 294*0Sstevel@tonic-gate sb.st_blocks = (blkcnt_t)vattr.va_nblocks; 295*0Sstevel@tonic-gate if (vp->v_vfsp != NULL) { 296*0Sstevel@tonic-gate vswp = &vfssw[vp->v_vfsp->vfs_fstype]; 297*0Sstevel@tonic-gate if (vswp->vsw_name && *vswp->vsw_name) 298*0Sstevel@tonic-gate (void) strcpy(sb.st_fstype, vswp->vsw_name); 299*0Sstevel@tonic-gate } 300*0Sstevel@tonic-gate if (copyout(&sb, ubp, sizeof (sb))) 301*0Sstevel@tonic-gate return (EFAULT); 302*0Sstevel@tonic-gate return (0); 303*0Sstevel@tonic-gate } 304*0Sstevel@tonic-gate 305*0Sstevel@tonic-gate static int 306*0Sstevel@tonic-gate cstatat(int fd, char *name, int nmflag, struct stat *sb, int follow, int flags) 307*0Sstevel@tonic-gate { 308*0Sstevel@tonic-gate vnode_t *vp; 309*0Sstevel@tonic-gate int error; 310*0Sstevel@tonic-gate cred_t *cred; 311*0Sstevel@tonic-gate int link_follow; 312*0Sstevel@tonic-gate 313*0Sstevel@tonic-gate link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW; 314*0Sstevel@tonic-gate lookup: 315*0Sstevel@tonic-gate if (error = cstatat_getvp(fd, name, nmflag, link_follow, &vp, &cred)) 316*0Sstevel@tonic-gate return (set_errno(error)); 317*0Sstevel@tonic-gate error = cstat(vp, sb, flags, cred); 318*0Sstevel@tonic-gate crfree(cred); 319*0Sstevel@tonic-gate VN_RELE(vp); 320*0Sstevel@tonic-gate out: 321*0Sstevel@tonic-gate if (error != 0) { 322*0Sstevel@tonic-gate if (error == ESTALE && 323*0Sstevel@tonic-gate (nmflag == 1 || (nmflag == 2 && name != NULL))) 324*0Sstevel@tonic-gate goto lookup; 325*0Sstevel@tonic-gate return (set_errno(error)); 326*0Sstevel@tonic-gate } 327*0Sstevel@tonic-gate return (0); 328*0Sstevel@tonic-gate } 329*0Sstevel@tonic-gate 330*0Sstevel@tonic-gate #if defined(_SYSCALL32_IMPL) 331*0Sstevel@tonic-gate 332*0Sstevel@tonic-gate /* 333*0Sstevel@tonic-gate * 64-bit kernel, 32-bit applications, 32-bit file offsets 334*0Sstevel@tonic-gate */ 335*0Sstevel@tonic-gate static int cstatat32(int, char *, int, struct stat32 *, int, int); 336*0Sstevel@tonic-gate static int cstat32(vnode_t *, struct stat32 *, int, cred_t *); 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate int 339*0Sstevel@tonic-gate stat32(char *fname, struct stat32 *sb) 340*0Sstevel@tonic-gate { 341*0Sstevel@tonic-gate return (cstatat32(AT_FDCWD, fname, 1, sb, 0, ATTR_REAL)); 342*0Sstevel@tonic-gate } 343*0Sstevel@tonic-gate 344*0Sstevel@tonic-gate int 345*0Sstevel@tonic-gate lstat32(char *fname, struct stat32 *sb) 346*0Sstevel@tonic-gate { 347*0Sstevel@tonic-gate return (cstatat32(AT_FDCWD, fname, 1, sb, AT_SYMLINK_NOFOLLOW, 0)); 348*0Sstevel@tonic-gate } 349*0Sstevel@tonic-gate 350*0Sstevel@tonic-gate int 351*0Sstevel@tonic-gate fstat32(int fd, struct stat32 *sb) 352*0Sstevel@tonic-gate { 353*0Sstevel@tonic-gate FSTAT_BODY(fd, sb, cstat32) 354*0Sstevel@tonic-gate } 355*0Sstevel@tonic-gate 356*0Sstevel@tonic-gate int 357*0Sstevel@tonic-gate fstatat32(int fd, char *name, struct stat32 *sb, int flag) 358*0Sstevel@tonic-gate { 359*0Sstevel@tonic-gate return (cstatat32(fd, name, 2, sb, flag, 0)); 360*0Sstevel@tonic-gate } 361*0Sstevel@tonic-gate 362*0Sstevel@tonic-gate #if defined(__i386_COMPAT) 363*0Sstevel@tonic-gate 364*0Sstevel@tonic-gate /* 365*0Sstevel@tonic-gate * Syscalls for i386 applications that issue {,l,f}xstat() directly 366*0Sstevel@tonic-gate */ 367*0Sstevel@tonic-gate int 368*0Sstevel@tonic-gate xstat32(int version, char *fname, struct stat32 *sb) 369*0Sstevel@tonic-gate { 370*0Sstevel@tonic-gate XSTAT_BODY(version, fname, sb, stat32) 371*0Sstevel@tonic-gate } 372*0Sstevel@tonic-gate 373*0Sstevel@tonic-gate int 374*0Sstevel@tonic-gate lxstat32(int version, char *fname, struct stat32 *sb) 375*0Sstevel@tonic-gate { 376*0Sstevel@tonic-gate XSTAT_BODY(version, fname, sb, lstat32) 377*0Sstevel@tonic-gate } 378*0Sstevel@tonic-gate 379*0Sstevel@tonic-gate int 380*0Sstevel@tonic-gate fxstat32(int version, int fd, struct stat32 *sb) 381*0Sstevel@tonic-gate { 382*0Sstevel@tonic-gate XSTAT_BODY(version, fd, sb, fstat32) 383*0Sstevel@tonic-gate } 384*0Sstevel@tonic-gate 385*0Sstevel@tonic-gate #endif /* __i386_COMPAT */ 386*0Sstevel@tonic-gate 387*0Sstevel@tonic-gate static int 388*0Sstevel@tonic-gate cstat32(vnode_t *vp, struct stat32 *ubp, int flag, struct cred *cr) 389*0Sstevel@tonic-gate { 390*0Sstevel@tonic-gate struct vfssw *vswp; 391*0Sstevel@tonic-gate struct stat32 sb; 392*0Sstevel@tonic-gate vattr_t vattr; 393*0Sstevel@tonic-gate int error; 394*0Sstevel@tonic-gate dev32_t st_dev, st_rdev; 395*0Sstevel@tonic-gate 396*0Sstevel@tonic-gate vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE; 397*0Sstevel@tonic-gate if (error = VOP_GETATTR(vp, &vattr, flag, cr)) 398*0Sstevel@tonic-gate return (error); 399*0Sstevel@tonic-gate 400*0Sstevel@tonic-gate /* devices are a special case, see comments in cstat */ 401*0Sstevel@tonic-gate if ((vattr.va_size > MAXOFF32_T) && 402*0Sstevel@tonic-gate ((vp->v_type == VBLK) || (vp->v_type == VCHR))) { 403*0Sstevel@tonic-gate /* OVERFLOW | UNKNOWN_SIZE */ 404*0Sstevel@tonic-gate vattr.va_size = MAXOFF32_T; 405*0Sstevel@tonic-gate } 406*0Sstevel@tonic-gate 407*0Sstevel@tonic-gate /* check for large values */ 408*0Sstevel@tonic-gate if (!cmpldev(&st_dev, vattr.va_fsid) || 409*0Sstevel@tonic-gate !cmpldev(&st_rdev, vattr.va_rdev) || 410*0Sstevel@tonic-gate vattr.va_size > MAXOFF32_T || 411*0Sstevel@tonic-gate vattr.va_nblocks > INT32_MAX || 412*0Sstevel@tonic-gate vattr.va_nodeid > UINT32_MAX || 413*0Sstevel@tonic-gate TIMESPEC_OVERFLOW(&(vattr.va_atime)) || 414*0Sstevel@tonic-gate TIMESPEC_OVERFLOW(&(vattr.va_mtime)) || 415*0Sstevel@tonic-gate TIMESPEC_OVERFLOW(&(vattr.va_ctime))) 416*0Sstevel@tonic-gate return (EOVERFLOW); 417*0Sstevel@tonic-gate 418*0Sstevel@tonic-gate bzero(&sb, sizeof (sb)); 419*0Sstevel@tonic-gate sb.st_dev = st_dev; 420*0Sstevel@tonic-gate sb.st_ino = (ino32_t)vattr.va_nodeid; 421*0Sstevel@tonic-gate sb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode; 422*0Sstevel@tonic-gate sb.st_nlink = vattr.va_nlink; 423*0Sstevel@tonic-gate sb.st_uid = vattr.va_uid; 424*0Sstevel@tonic-gate sb.st_gid = vattr.va_gid; 425*0Sstevel@tonic-gate sb.st_rdev = st_rdev; 426*0Sstevel@tonic-gate sb.st_size = (off32_t)vattr.va_size; 427*0Sstevel@tonic-gate TIMESPEC_TO_TIMESPEC32(&(sb.st_atim), &(vattr.va_atime)); 428*0Sstevel@tonic-gate TIMESPEC_TO_TIMESPEC32(&(sb.st_mtim), &(vattr.va_mtime)); 429*0Sstevel@tonic-gate TIMESPEC_TO_TIMESPEC32(&(sb.st_ctim), &(vattr.va_ctime)); 430*0Sstevel@tonic-gate sb.st_blksize = vattr.va_blksize; 431*0Sstevel@tonic-gate sb.st_blocks = (blkcnt32_t)vattr.va_nblocks; 432*0Sstevel@tonic-gate if (vp->v_vfsp != NULL) { 433*0Sstevel@tonic-gate vswp = &vfssw[vp->v_vfsp->vfs_fstype]; 434*0Sstevel@tonic-gate if (vswp->vsw_name && *vswp->vsw_name) 435*0Sstevel@tonic-gate (void) strcpy(sb.st_fstype, vswp->vsw_name); 436*0Sstevel@tonic-gate } 437*0Sstevel@tonic-gate if (copyout(&sb, ubp, sizeof (sb))) 438*0Sstevel@tonic-gate return (EFAULT); 439*0Sstevel@tonic-gate return (0); 440*0Sstevel@tonic-gate } 441*0Sstevel@tonic-gate 442*0Sstevel@tonic-gate static int 443*0Sstevel@tonic-gate cstatat32(int fd, char *name, int nmflag, struct stat32 *sb, 444*0Sstevel@tonic-gate int follow, int flags) 445*0Sstevel@tonic-gate { 446*0Sstevel@tonic-gate vnode_t *vp; 447*0Sstevel@tonic-gate int error; 448*0Sstevel@tonic-gate cred_t *cred; 449*0Sstevel@tonic-gate int link_follow; 450*0Sstevel@tonic-gate 451*0Sstevel@tonic-gate link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW; 452*0Sstevel@tonic-gate lookup: 453*0Sstevel@tonic-gate if (error = cstatat_getvp(fd, name, nmflag, link_follow, &vp, &cred)) 454*0Sstevel@tonic-gate return (set_errno(error)); 455*0Sstevel@tonic-gate error = cstat32(vp, sb, flags, cred); 456*0Sstevel@tonic-gate crfree(cred); 457*0Sstevel@tonic-gate VN_RELE(vp); 458*0Sstevel@tonic-gate out: 459*0Sstevel@tonic-gate if (error != 0) { 460*0Sstevel@tonic-gate if (error == ESTALE && 461*0Sstevel@tonic-gate (nmflag == 1 || (nmflag == 2 && name != NULL))) 462*0Sstevel@tonic-gate goto lookup; 463*0Sstevel@tonic-gate return (set_errno(error)); 464*0Sstevel@tonic-gate } 465*0Sstevel@tonic-gate return (0); 466*0Sstevel@tonic-gate } 467*0Sstevel@tonic-gate 468*0Sstevel@tonic-gate #endif /* _SYSCALL32_IMPL */ 469*0Sstevel@tonic-gate 470*0Sstevel@tonic-gate #if defined(_ILP32) 471*0Sstevel@tonic-gate 472*0Sstevel@tonic-gate /* 473*0Sstevel@tonic-gate * 32-bit kernel, 32-bit applications, 64-bit file offsets. 474*0Sstevel@tonic-gate * 475*0Sstevel@tonic-gate * These routines are implemented differently on 64-bit kernels. 476*0Sstevel@tonic-gate */ 477*0Sstevel@tonic-gate static int cstatat64(int, char *, int, struct stat64 *, int, int); 478*0Sstevel@tonic-gate static int cstat64(vnode_t *, struct stat64 *, int, cred_t *); 479*0Sstevel@tonic-gate 480*0Sstevel@tonic-gate int 481*0Sstevel@tonic-gate stat64(char *fname, struct stat64 *sb) 482*0Sstevel@tonic-gate { 483*0Sstevel@tonic-gate return (cstatat64(AT_FDCWD, fname, 1, sb, 0, ATTR_REAL)); 484*0Sstevel@tonic-gate } 485*0Sstevel@tonic-gate 486*0Sstevel@tonic-gate int 487*0Sstevel@tonic-gate lstat64(char *fname, struct stat64 *sb) 488*0Sstevel@tonic-gate { 489*0Sstevel@tonic-gate return (cstatat64(AT_FDCWD, fname, 1, sb, AT_SYMLINK_NOFOLLOW, 0)); 490*0Sstevel@tonic-gate } 491*0Sstevel@tonic-gate 492*0Sstevel@tonic-gate int 493*0Sstevel@tonic-gate fstat64(int fd, struct stat64 *sb) 494*0Sstevel@tonic-gate { 495*0Sstevel@tonic-gate FSTAT_BODY(fd, sb, cstat64) 496*0Sstevel@tonic-gate } 497*0Sstevel@tonic-gate 498*0Sstevel@tonic-gate int 499*0Sstevel@tonic-gate fstatat64(int fd, char *name, struct stat64 *sb, int flags) 500*0Sstevel@tonic-gate { 501*0Sstevel@tonic-gate return (cstatat64(fd, name, 2, sb, flags, 0)); 502*0Sstevel@tonic-gate } 503*0Sstevel@tonic-gate 504*0Sstevel@tonic-gate static int 505*0Sstevel@tonic-gate cstat64(vnode_t *vp, struct stat64 *ubp, int flag, cred_t *cr) 506*0Sstevel@tonic-gate { 507*0Sstevel@tonic-gate struct vfssw *vswp; 508*0Sstevel@tonic-gate struct stat64 lsb; 509*0Sstevel@tonic-gate vattr_t vattr; 510*0Sstevel@tonic-gate int error; 511*0Sstevel@tonic-gate 512*0Sstevel@tonic-gate vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE; 513*0Sstevel@tonic-gate if (error = VOP_GETATTR(vp, &vattr, flag, cr)) 514*0Sstevel@tonic-gate return (error); 515*0Sstevel@tonic-gate 516*0Sstevel@tonic-gate bzero(&lsb, sizeof (lsb)); 517*0Sstevel@tonic-gate lsb.st_dev = vattr.va_fsid; 518*0Sstevel@tonic-gate lsb.st_ino = vattr.va_nodeid; 519*0Sstevel@tonic-gate lsb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode; 520*0Sstevel@tonic-gate lsb.st_nlink = vattr.va_nlink; 521*0Sstevel@tonic-gate lsb.st_uid = vattr.va_uid; 522*0Sstevel@tonic-gate lsb.st_gid = vattr.va_gid; 523*0Sstevel@tonic-gate lsb.st_rdev = vattr.va_rdev; 524*0Sstevel@tonic-gate lsb.st_size = vattr.va_size; 525*0Sstevel@tonic-gate lsb.st_atim = vattr.va_atime; 526*0Sstevel@tonic-gate lsb.st_mtim = vattr.va_mtime; 527*0Sstevel@tonic-gate lsb.st_ctim = vattr.va_ctime; 528*0Sstevel@tonic-gate lsb.st_blksize = vattr.va_blksize; 529*0Sstevel@tonic-gate lsb.st_blocks = vattr.va_nblocks; 530*0Sstevel@tonic-gate if (vp->v_vfsp != NULL) { 531*0Sstevel@tonic-gate vswp = &vfssw[vp->v_vfsp->vfs_fstype]; 532*0Sstevel@tonic-gate if (vswp->vsw_name && *vswp->vsw_name) 533*0Sstevel@tonic-gate (void) strcpy(lsb.st_fstype, vswp->vsw_name); 534*0Sstevel@tonic-gate } 535*0Sstevel@tonic-gate if (copyout(&lsb, ubp, sizeof (lsb))) 536*0Sstevel@tonic-gate return (EFAULT); 537*0Sstevel@tonic-gate return (0); 538*0Sstevel@tonic-gate } 539*0Sstevel@tonic-gate 540*0Sstevel@tonic-gate static int 541*0Sstevel@tonic-gate cstatat64(int fd, char *name, int nmflag, struct stat64 *sb, 542*0Sstevel@tonic-gate int follow, int flags) 543*0Sstevel@tonic-gate { 544*0Sstevel@tonic-gate vnode_t *vp; 545*0Sstevel@tonic-gate int error; 546*0Sstevel@tonic-gate cred_t *cred; 547*0Sstevel@tonic-gate int link_follow; 548*0Sstevel@tonic-gate 549*0Sstevel@tonic-gate link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW; 550*0Sstevel@tonic-gate lookup: 551*0Sstevel@tonic-gate if (error = cstatat_getvp(fd, name, nmflag, link_follow, &vp, &cred)) 552*0Sstevel@tonic-gate return (set_errno(error)); 553*0Sstevel@tonic-gate error = cstat64(vp, sb, flags, cred); 554*0Sstevel@tonic-gate crfree(cred); 555*0Sstevel@tonic-gate VN_RELE(vp); 556*0Sstevel@tonic-gate out: 557*0Sstevel@tonic-gate if (error != 0) { 558*0Sstevel@tonic-gate if (error == ESTALE && 559*0Sstevel@tonic-gate (nmflag == 1 || (nmflag == 2 && name != NULL))) 560*0Sstevel@tonic-gate goto lookup; 561*0Sstevel@tonic-gate return (set_errno(error)); 562*0Sstevel@tonic-gate } 563*0Sstevel@tonic-gate return (0); 564*0Sstevel@tonic-gate } 565*0Sstevel@tonic-gate 566*0Sstevel@tonic-gate #endif /* _ILP32 */ 567*0Sstevel@tonic-gate 568*0Sstevel@tonic-gate #if defined(_SYSCALL32_IMPL) 569*0Sstevel@tonic-gate 570*0Sstevel@tonic-gate /* 571*0Sstevel@tonic-gate * 64-bit kernel, 32-bit applications, 64-bit file offsets. 572*0Sstevel@tonic-gate * 573*0Sstevel@tonic-gate * We'd really like to call the "native" stat calls for these ones, 574*0Sstevel@tonic-gate * but the problem is that the 64-bit ABI defines the 'stat64' structure 575*0Sstevel@tonic-gate * differently from the way the 32-bit ABI defines it. 576*0Sstevel@tonic-gate */ 577*0Sstevel@tonic-gate 578*0Sstevel@tonic-gate static int cstatat64_32(int, char *, int, struct stat64_32 *, int, int); 579*0Sstevel@tonic-gate static int cstat64_32(vnode_t *, struct stat64_32 *, int, cred_t *); 580*0Sstevel@tonic-gate 581*0Sstevel@tonic-gate int 582*0Sstevel@tonic-gate stat64_32(char *fname, struct stat64_32 *sb) 583*0Sstevel@tonic-gate { 584*0Sstevel@tonic-gate return (cstatat64_32(AT_FDCWD, fname, 1, sb, 0, ATTR_REAL)); 585*0Sstevel@tonic-gate } 586*0Sstevel@tonic-gate 587*0Sstevel@tonic-gate int 588*0Sstevel@tonic-gate lstat64_32(char *fname, struct stat64_32 *sb) 589*0Sstevel@tonic-gate { 590*0Sstevel@tonic-gate return (cstatat64_32(AT_FDCWD, fname, 1, sb, AT_SYMLINK_NOFOLLOW, 0)); 591*0Sstevel@tonic-gate } 592*0Sstevel@tonic-gate 593*0Sstevel@tonic-gate int 594*0Sstevel@tonic-gate fstat64_32(int fd, struct stat64_32 *sb) 595*0Sstevel@tonic-gate { 596*0Sstevel@tonic-gate FSTAT_BODY(fd, sb, cstat64_32) 597*0Sstevel@tonic-gate } 598*0Sstevel@tonic-gate 599*0Sstevel@tonic-gate int 600*0Sstevel@tonic-gate fstatat64_32(int fd, char *name, struct stat64_32 *sb, int flag) 601*0Sstevel@tonic-gate { 602*0Sstevel@tonic-gate return (cstatat64_32(fd, name, 2, sb, flag, 0)); 603*0Sstevel@tonic-gate } 604*0Sstevel@tonic-gate 605*0Sstevel@tonic-gate static int 606*0Sstevel@tonic-gate cstat64_32(vnode_t *vp, struct stat64_32 *ubp, int flag, cred_t *cr) 607*0Sstevel@tonic-gate { 608*0Sstevel@tonic-gate struct vfssw *vswp; 609*0Sstevel@tonic-gate struct stat64_32 lsb; 610*0Sstevel@tonic-gate vattr_t vattr; 611*0Sstevel@tonic-gate int error; 612*0Sstevel@tonic-gate dev32_t st_dev, st_rdev; 613*0Sstevel@tonic-gate 614*0Sstevel@tonic-gate vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE; 615*0Sstevel@tonic-gate if (error = VOP_GETATTR(vp, &vattr, flag, cr)) 616*0Sstevel@tonic-gate return (error); 617*0Sstevel@tonic-gate 618*0Sstevel@tonic-gate if (!cmpldev(&st_dev, vattr.va_fsid) || 619*0Sstevel@tonic-gate !cmpldev(&st_rdev, vattr.va_rdev) || 620*0Sstevel@tonic-gate TIMESPEC_OVERFLOW(&(vattr.va_atime)) || 621*0Sstevel@tonic-gate TIMESPEC_OVERFLOW(&(vattr.va_mtime)) || 622*0Sstevel@tonic-gate TIMESPEC_OVERFLOW(&(vattr.va_ctime))) 623*0Sstevel@tonic-gate return (EOVERFLOW); 624*0Sstevel@tonic-gate 625*0Sstevel@tonic-gate bzero(&lsb, sizeof (lsb)); 626*0Sstevel@tonic-gate lsb.st_dev = st_dev; 627*0Sstevel@tonic-gate lsb.st_ino = vattr.va_nodeid; 628*0Sstevel@tonic-gate lsb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode; 629*0Sstevel@tonic-gate lsb.st_nlink = vattr.va_nlink; 630*0Sstevel@tonic-gate lsb.st_uid = vattr.va_uid; 631*0Sstevel@tonic-gate lsb.st_gid = vattr.va_gid; 632*0Sstevel@tonic-gate lsb.st_rdev = st_rdev; 633*0Sstevel@tonic-gate lsb.st_size = vattr.va_size; 634*0Sstevel@tonic-gate TIMESPEC_TO_TIMESPEC32(&(lsb.st_atim), &(vattr.va_atime)); 635*0Sstevel@tonic-gate TIMESPEC_TO_TIMESPEC32(&(lsb.st_mtim), &(vattr.va_mtime)); 636*0Sstevel@tonic-gate TIMESPEC_TO_TIMESPEC32(&(lsb.st_ctim), &(vattr.va_ctime)); 637*0Sstevel@tonic-gate lsb.st_blksize = vattr.va_blksize; 638*0Sstevel@tonic-gate lsb.st_blocks = vattr.va_nblocks; 639*0Sstevel@tonic-gate if (vp->v_vfsp != NULL) { 640*0Sstevel@tonic-gate vswp = &vfssw[vp->v_vfsp->vfs_fstype]; 641*0Sstevel@tonic-gate if (vswp->vsw_name && *vswp->vsw_name) 642*0Sstevel@tonic-gate (void) strcpy(lsb.st_fstype, vswp->vsw_name); 643*0Sstevel@tonic-gate } 644*0Sstevel@tonic-gate if (copyout(&lsb, ubp, sizeof (lsb))) 645*0Sstevel@tonic-gate return (EFAULT); 646*0Sstevel@tonic-gate return (0); 647*0Sstevel@tonic-gate } 648*0Sstevel@tonic-gate 649*0Sstevel@tonic-gate static int 650*0Sstevel@tonic-gate cstatat64_32(int fd, char *name, int nmflag, struct stat64_32 *sb, 651*0Sstevel@tonic-gate int follow, int flags) 652*0Sstevel@tonic-gate { 653*0Sstevel@tonic-gate vnode_t *vp; 654*0Sstevel@tonic-gate int error; 655*0Sstevel@tonic-gate cred_t *cred; 656*0Sstevel@tonic-gate int link_follow; 657*0Sstevel@tonic-gate 658*0Sstevel@tonic-gate link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW; 659*0Sstevel@tonic-gate lookup: 660*0Sstevel@tonic-gate if (error = cstatat_getvp(fd, name, nmflag, link_follow, &vp, &cred)) 661*0Sstevel@tonic-gate return (set_errno(error)); 662*0Sstevel@tonic-gate error = cstat64_32(vp, sb, flags, cred); 663*0Sstevel@tonic-gate crfree(cred); 664*0Sstevel@tonic-gate VN_RELE(vp); 665*0Sstevel@tonic-gate out: 666*0Sstevel@tonic-gate if (error != 0) { 667*0Sstevel@tonic-gate if (error == ESTALE && 668*0Sstevel@tonic-gate (nmflag == 1 || (nmflag == 2 && name != NULL))) 669*0Sstevel@tonic-gate goto lookup; 670*0Sstevel@tonic-gate return (set_errno(error)); 671*0Sstevel@tonic-gate } 672*0Sstevel@tonic-gate return (0); 673*0Sstevel@tonic-gate } 674*0Sstevel@tonic-gate 675*0Sstevel@tonic-gate #endif /* _SYSCALL32_IMPL */ 676