linux_file.c revision 315550
19313Ssos/*- 2230132Suqs * Copyright (c) 1994-1995 S��ren Schmidt 39313Ssos * All rights reserved. 49313Ssos * 59313Ssos * Redistribution and use in source and binary forms, with or without 69313Ssos * modification, are permitted provided that the following conditions 79313Ssos * are met: 89313Ssos * 1. Redistributions of source code must retain the above copyright 9111798Sdes * notice, this list of conditions and the following disclaimer 109313Ssos * in this position and unchanged. 119313Ssos * 2. Redistributions in binary form must reproduce the above copyright 129313Ssos * notice, this list of conditions and the following disclaimer in the 139313Ssos * documentation and/or other materials provided with the distribution. 149313Ssos * 3. The name of the author may not be used to endorse or promote products 1597748Sschweikh * derived from this software without specific prior written permission 169313Ssos * 179313Ssos * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 189313Ssos * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 199313Ssos * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 209313Ssos * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 219313Ssos * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 229313Ssos * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 239313Ssos * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 249313Ssos * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 259313Ssos * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 269313Ssos * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 279313Ssos */ 289313Ssos 29116173Sobrien#include <sys/cdefs.h> 30116173Sobrien__FBSDID("$FreeBSD: stable/11/sys/compat/linux/linux_file.c 315550 2017-03-19 14:36:19Z trasz $"); 31116173Sobrien 32156874Sru#include "opt_compat.h" 3331784Seivind 349313Ssos#include <sys/param.h> 359313Ssos#include <sys/systm.h> 36263233Srwatson#include <sys/capsicum.h> 3776166Smarkm#include <sys/conf.h> 3876166Smarkm#include <sys/dirent.h> 399313Ssos#include <sys/fcntl.h> 409313Ssos#include <sys/file.h> 419313Ssos#include <sys/filedesc.h> 4231561Sbde#include <sys/lock.h> 439313Ssos#include <sys/malloc.h> 4472538Sjlemon#include <sys/mount.h> 4576166Smarkm#include <sys/mutex.h> 46168014Sjulian#include <sys/namei.h> 4776166Smarkm#include <sys/proc.h> 48162201Snetchild#include <sys/stat.h> 49166085Skib#include <sys/sx.h> 50102814Siedowse#include <sys/syscallsubr.h> 5176166Smarkm#include <sys/sysproto.h> 5214331Speter#include <sys/tty.h> 53162585Snetchild#include <sys/unistd.h> 5476166Smarkm#include <sys/vnode.h> 5512458Sbde 56140214Sobrien#ifdef COMPAT_LINUX32 57140214Sobrien#include <machine/../linux32/linux.h> 58140214Sobrien#include <machine/../linux32/linux32_proto.h> 59140214Sobrien#else 6064905Smarcel#include <machine/../linux/linux.h> 6168583Smarcel#include <machine/../linux/linux_proto.h> 62133816Stjr#endif 63246085Sjhb#include <compat/linux/linux_misc.h> 6464905Smarcel#include <compat/linux/linux_util.h> 65177997Skib#include <compat/linux/linux_file.h> 669313Ssos 67315376Sdchaginstatic int linux_common_open(struct thread *, int, char *, int, int); 68315376Sdchaginstatic int linux_getdents_error(struct thread *, int, int); 69315376Sdchagin 70315376Sdchagin 719313Ssosint 7283366Sjulianlinux_creat(struct thread *td, struct linux_creat_args *args) 739313Ssos{ 74300411Sdchagin char *path; 75300411Sdchagin int error; 769313Ssos 77300411Sdchagin LCONVPATHEXIST(td, args->path, &path); 789313Ssos#ifdef DEBUG 7972543Sjlemon if (ldebug(creat)) 80102814Siedowse printf(ARGS(creat, "%s, %d"), path, args->mode); 819313Ssos#endif 82300411Sdchagin error = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE, 83300411Sdchagin O_WRONLY | O_CREAT | O_TRUNC, args->mode); 84300411Sdchagin LFREEPATH(path); 85300411Sdchagin return (error); 869313Ssos} 879313Ssos 88168014Sjulian 89168014Sjulianstatic int 90177997Skiblinux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode) 919313Ssos{ 92300411Sdchagin cap_rights_t rights; 93300411Sdchagin struct proc *p = td->td_proc; 94300411Sdchagin struct file *fp; 95300411Sdchagin int fd; 96300411Sdchagin int bsd_flags, error; 9714331Speter 98300411Sdchagin bsd_flags = 0; 99300411Sdchagin switch (l_flags & LINUX_O_ACCMODE) { 100300411Sdchagin case LINUX_O_WRONLY: 101300411Sdchagin bsd_flags |= O_WRONLY; 102300411Sdchagin break; 103300411Sdchagin case LINUX_O_RDWR: 104300411Sdchagin bsd_flags |= O_RDWR; 105300411Sdchagin break; 106300411Sdchagin default: 107300411Sdchagin bsd_flags |= O_RDONLY; 108300411Sdchagin } 109300411Sdchagin if (l_flags & LINUX_O_NDELAY) 110300411Sdchagin bsd_flags |= O_NONBLOCK; 111300411Sdchagin if (l_flags & LINUX_O_APPEND) 112300411Sdchagin bsd_flags |= O_APPEND; 113300411Sdchagin if (l_flags & LINUX_O_SYNC) 114300411Sdchagin bsd_flags |= O_FSYNC; 115300411Sdchagin if (l_flags & LINUX_O_NONBLOCK) 116300411Sdchagin bsd_flags |= O_NONBLOCK; 117300411Sdchagin if (l_flags & LINUX_FASYNC) 118300411Sdchagin bsd_flags |= O_ASYNC; 119300411Sdchagin if (l_flags & LINUX_O_CREAT) 120300411Sdchagin bsd_flags |= O_CREAT; 121300411Sdchagin if (l_flags & LINUX_O_TRUNC) 122300411Sdchagin bsd_flags |= O_TRUNC; 123300411Sdchagin if (l_flags & LINUX_O_EXCL) 124300411Sdchagin bsd_flags |= O_EXCL; 125300411Sdchagin if (l_flags & LINUX_O_NOCTTY) 126300411Sdchagin bsd_flags |= O_NOCTTY; 127300411Sdchagin if (l_flags & LINUX_O_DIRECT) 128300411Sdchagin bsd_flags |= O_DIRECT; 129300411Sdchagin if (l_flags & LINUX_O_NOFOLLOW) 130300411Sdchagin bsd_flags |= O_NOFOLLOW; 131300411Sdchagin if (l_flags & LINUX_O_DIRECTORY) 132300411Sdchagin bsd_flags |= O_DIRECTORY; 133300411Sdchagin /* XXX LINUX_O_NOATIME: unable to be easily implemented. */ 1349313Ssos 135300411Sdchagin error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode); 136300411Sdchagin if (error != 0) 137300411Sdchagin goto done; 138300411Sdchagin if (bsd_flags & O_NOCTTY) 139300411Sdchagin goto done; 140178036Srdivacky 141300411Sdchagin /* 142300411Sdchagin * XXX In between kern_open() and fget(), another process 143300411Sdchagin * having the same filedesc could use that fd without 144300411Sdchagin * checking below. 145300411Sdchagin */ 146300411Sdchagin fd = td->td_retval[0]; 147300411Sdchagin if (fget(td, fd, cap_rights_init(&rights, CAP_IOCTL), &fp) == 0) { 148300411Sdchagin if (fp->f_type != DTYPE_VNODE) { 149300411Sdchagin fdrop(fp, td); 150300411Sdchagin goto done; 151300411Sdchagin } 152300411Sdchagin sx_slock(&proctree_lock); 153300411Sdchagin PROC_LOCK(p); 154300411Sdchagin if (SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 155300411Sdchagin PROC_UNLOCK(p); 156300411Sdchagin sx_sunlock(&proctree_lock); 157300411Sdchagin /* XXXPJD: Verify if TIOCSCTTY is allowed. */ 158300411Sdchagin (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, 159300411Sdchagin td->td_ucred, td); 160300411Sdchagin } else { 161300411Sdchagin PROC_UNLOCK(p); 162300411Sdchagin sx_sunlock(&proctree_lock); 163300411Sdchagin } 164300411Sdchagin fdrop(fp, td); 165300411Sdchagin } 166281726Strasz 167281726Straszdone: 16814331Speter#ifdef DEBUG 169300411Sdchagin if (ldebug(open)) 170300411Sdchagin printf(LMSG("open returns error %d"), error); 17114331Speter#endif 172300411Sdchagin LFREEPATH(path); 173300411Sdchagin return (error); 1749313Ssos} 1759313Ssos 1769313Ssosint 177168014Sjulianlinux_openat(struct thread *td, struct linux_openat_args *args) 178168014Sjulian{ 179177997Skib char *path; 180177997Skib int dfd; 181168014Sjulian 182177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 183177997Skib if (args->flags & LINUX_O_CREAT) 184177997Skib LCONVPATH_AT(td, args->filename, &path, 1, dfd); 185177997Skib else 186177997Skib LCONVPATH_AT(td, args->filename, &path, 0, dfd); 187168014Sjulian#ifdef DEBUG 188168014Sjulian if (ldebug(openat)) 189168014Sjulian printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd, 190177997Skib path, args->flags, args->mode); 191168014Sjulian#endif 192177997Skib return (linux_common_open(td, dfd, path, args->flags, args->mode)); 193168014Sjulian} 194168014Sjulian 195168014Sjulianint 196168014Sjulianlinux_open(struct thread *td, struct linux_open_args *args) 197168014Sjulian{ 198300411Sdchagin char *path; 199168014Sjulian 200300411Sdchagin if (args->flags & LINUX_O_CREAT) 201300411Sdchagin LCONVPATHCREAT(td, args->path, &path); 202300411Sdchagin else 203300411Sdchagin LCONVPATHEXIST(td, args->path, &path); 204168014Sjulian#ifdef DEBUG 205168014Sjulian if (ldebug(open)) 206168014Sjulian printf(ARGS(open, "%s, 0x%x, 0x%x"), 207168014Sjulian path, args->flags, args->mode); 208168014Sjulian#endif 209178036Srdivacky return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode)); 210168014Sjulian} 211168014Sjulian 212168014Sjulianint 21383366Sjulianlinux_lseek(struct thread *td, struct linux_lseek_args *args) 2149313Ssos{ 2159313Ssos 2169313Ssos#ifdef DEBUG 21772543Sjlemon if (ldebug(lseek)) 21872543Sjlemon printf(ARGS(lseek, "%d, %ld, %d"), 21983221Smarcel args->fdes, (long)args->off, args->whence); 2209313Ssos#endif 221315550Strasz return (kern_lseek(td, args->fdes, args->off, args->whence)); 2229313Ssos} 2239313Ssos 224283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 22514331Speterint 22683366Sjulianlinux_llseek(struct thread *td, struct linux_llseek_args *args) 22714331Speter{ 22814331Speter int error; 22914331Speter off_t off; 23014331Speter 23114331Speter#ifdef DEBUG 23272543Sjlemon if (ldebug(llseek)) 23372543Sjlemon printf(ARGS(llseek, "%d, %d:%d, %d"), 23472543Sjlemon args->fd, args->ohigh, args->olow, args->whence); 23514331Speter#endif 23614331Speter off = (args->olow) | (((off_t) args->ohigh) << 32); 23714331Speter 238315550Strasz error = kern_lseek(td, args->fd, off, args->whence); 239315550Strasz if (error != 0) 240300411Sdchagin return (error); 24114331Speter 242315550Strasz error = copyout(td->td_retval, args->res, sizeof(off_t)); 243315550Strasz if (error != 0) 244300411Sdchagin return (error); 24514331Speter 24683366Sjulian td->td_retval[0] = 0; 247300411Sdchagin return (0); 24814331Speter} 249283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 25014331Speter 25183221Smarcel/* 25283221Smarcel * Note that linux_getdents(2) and linux_getdents64(2) have the same 25383221Smarcel * arguments. They only differ in the definition of struct dirent they 254315376Sdchagin * operate on. 255315376Sdchagin * Note that linux_readdir(2) is a special case of linux_getdents(2) 256315376Sdchagin * where count is always equals 1, meaning that the buffer is one 257315376Sdchagin * dirent-structure in size and that the code can't handle more anyway. 258315376Sdchagin * Note that linux_readdir(2) can't be implemented by means of linux_getdents(2) 259315376Sdchagin * as in case when the *dent buffer size is equal to 1 linux_getdents(2) will 260315376Sdchagin * trash user stack. 26183221Smarcel */ 26283221Smarcel 263315376Sdchaginstatic int 264315376Sdchaginlinux_getdents_error(struct thread *td, int fd, int err) 265315376Sdchagin{ 266315376Sdchagin cap_rights_t rights; 267315376Sdchagin struct vnode *vp; 268315376Sdchagin struct file *fp; 269315376Sdchagin int error; 270315376Sdchagin 271315376Sdchagin /* Linux return ENOTDIR in case when fd is not a directory. */ 272315376Sdchagin error = getvnode(td, fd, cap_rights_init(&rights, CAP_READ), &fp); 273315376Sdchagin if (error != 0) 274315376Sdchagin return (error); 275315376Sdchagin vp = fp->f_vnode; 276315376Sdchagin if (vp->v_type != VDIR) { 277315376Sdchagin fdrop(fp, td); 278315376Sdchagin return (ENOTDIR); 279315376Sdchagin } 280315376Sdchagin fdrop(fp, td); 281315376Sdchagin return (err); 282315376Sdchagin} 283315376Sdchagin 28483221Smarcelstruct l_dirent { 285179651Srdivacky l_ulong d_ino; 28683221Smarcel l_off_t d_off; 28783221Smarcel l_ushort d_reclen; 28883221Smarcel char d_name[LINUX_NAME_MAX + 1]; 28983221Smarcel}; 29083221Smarcel 29183221Smarcelstruct l_dirent64 { 29283221Smarcel uint64_t d_ino; 29383221Smarcel int64_t d_off; 29483221Smarcel l_ushort d_reclen; 29583221Smarcel u_char d_type; 29683221Smarcel char d_name[LINUX_NAME_MAX + 1]; 29783221Smarcel}; 29883221Smarcel 299182892Srdivacky/* 300182892Srdivacky * Linux uses the last byte in the dirent buffer to store d_type, 301182892Srdivacky * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes. 302182892Srdivacky */ 303182892Srdivacky#define LINUX_RECLEN(namlen) \ 304298482Spfg roundup(offsetof(struct l_dirent, d_name) + (namlen) + 2, sizeof(l_ulong)) 30583221Smarcel 306182892Srdivacky#define LINUX_RECLEN64(namlen) \ 307298482Spfg roundup(offsetof(struct l_dirent64, d_name) + (namlen) + 1, \ 308182892Srdivacky sizeof(uint64_t)) 309182892Srdivacky 31083221Smarcel#define LINUX_DIRBLKSIZ 512 31183221Smarcel 312315376Sdchagin/* 313315376Sdchagin * Linux l_dirent is bigger than FreeBSD dirent, thus the buffer size 314315376Sdchagin * passed to kern_getdirentries() must be smaller than the one passed 315315376Sdchagin * to linux_getdents() by certain factor. 316315376Sdchagin */ 317315376Sdchagin#define LINUX_RECLEN_RATIO(X) X * offsetof(struct dirent, d_name) / \ 318315376Sdchagin offsetof(struct l_dirent, d_name); 319315376Sdchagin#define LINUX_RECLEN64_RATIO(X) X * offsetof(struct dirent, d_name) / \ 320315376Sdchagin offsetof(struct l_dirent64, d_name); 321315376Sdchagin 322315376Sdchaginint 323315376Sdchaginlinux_getdents(struct thread *td, struct linux_getdents_args *args) 32414331Speter{ 325111798Sdes struct dirent *bdp; 32683221Smarcel caddr_t inp, buf; /* BSD-format */ 32783221Smarcel int len, reclen; /* BSD-format */ 32883221Smarcel caddr_t outp; /* Linux-format */ 329315376Sdchagin int resid, linuxreclen; /* Linux-format */ 330182892Srdivacky caddr_t lbuf; /* Linux-format */ 331315376Sdchagin long base; 332182892Srdivacky struct l_dirent *linux_dirent; 333315376Sdchagin int buflen, error; 334315376Sdchagin size_t retval; 3359313Ssos 336315376Sdchagin#ifdef DEBUG 337315376Sdchagin if (ldebug(getdents)) 338315376Sdchagin printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count); 339315376Sdchagin#endif 340315376Sdchagin buflen = LINUX_RECLEN_RATIO(args->count); 341315376Sdchagin buflen = min(buflen, MAXBSIZE); 342315376Sdchagin buf = malloc(buflen, M_TEMP, M_WAITOK); 343160276Sjhb 344315376Sdchagin error = kern_getdirentries(td, args->fd, buf, buflen, 345315376Sdchagin &base, NULL, UIO_SYSSPACE); 346315376Sdchagin if (error != 0) { 347315376Sdchagin error = linux_getdents_error(td, args->fd, error); 348315376Sdchagin goto out1; 34989306Salfred } 3509313Ssos 351315376Sdchagin lbuf = malloc(LINUX_RECLEN(LINUX_NAME_MAX), M_TEMP, M_WAITOK | M_ZERO); 352315376Sdchagin 353315376Sdchagin len = td->td_retval[0]; 354315376Sdchagin inp = buf; 355315376Sdchagin outp = (caddr_t)args->dent; 356315376Sdchagin resid = args->count; 357315376Sdchagin retval = 0; 358315376Sdchagin 359315376Sdchagin while (len > 0) { 360315376Sdchagin bdp = (struct dirent *) inp; 361315376Sdchagin reclen = bdp->d_reclen; 362315376Sdchagin linuxreclen = LINUX_RECLEN(bdp->d_namlen); 363315376Sdchagin /* 364315376Sdchagin * No more space in the user supplied dirent buffer. 365315376Sdchagin * Return EINVAL. 366315376Sdchagin */ 367315376Sdchagin if (resid < linuxreclen) { 368315376Sdchagin error = EINVAL; 369315376Sdchagin goto out; 370315376Sdchagin } 371315376Sdchagin 372315376Sdchagin linux_dirent = (struct l_dirent*)lbuf; 373315376Sdchagin linux_dirent->d_ino = bdp->d_fileno; 374315376Sdchagin linux_dirent->d_off = base + reclen; 375315376Sdchagin linux_dirent->d_reclen = linuxreclen; 376315376Sdchagin /* 377315376Sdchagin * Copy d_type to last byte of l_dirent buffer 378315376Sdchagin */ 379315376Sdchagin lbuf[linuxreclen - 1] = bdp->d_type; 380315376Sdchagin strlcpy(linux_dirent->d_name, bdp->d_name, 381315376Sdchagin linuxreclen - offsetof(struct l_dirent, d_name)-1); 382315376Sdchagin error = copyout(linux_dirent, outp, linuxreclen); 383315376Sdchagin if (error != 0) 384315376Sdchagin goto out; 385315376Sdchagin 386315376Sdchagin inp += reclen; 387315376Sdchagin base += reclen; 388315376Sdchagin len -= reclen; 389315376Sdchagin 390315376Sdchagin retval += linuxreclen; 391315376Sdchagin outp += linuxreclen; 392315376Sdchagin resid -= linuxreclen; 39389306Salfred } 394315376Sdchagin td->td_retval[0] = retval; 3959313Ssos 396315376Sdchaginout: 397315376Sdchagin free(lbuf, M_LINUX); 398315376Sdchaginout1: 399315376Sdchagin free(buf, M_LINUX); 400315376Sdchagin return (error); 401315376Sdchagin} 4029313Ssos 403315376Sdchaginint 404315376Sdchaginlinux_getdents64(struct thread *td, struct linux_getdents64_args *args) 405315376Sdchagin{ 406315376Sdchagin struct dirent *bdp; 407315376Sdchagin caddr_t inp, buf; /* BSD-format */ 408315376Sdchagin int len, reclen; /* BSD-format */ 409315376Sdchagin caddr_t outp; /* Linux-format */ 410315376Sdchagin int resid, linuxreclen; /* Linux-format */ 411315376Sdchagin caddr_t lbuf; /* Linux-format */ 412315376Sdchagin long base; 413315376Sdchagin struct l_dirent64 *linux_dirent64; 414315376Sdchagin int buflen, error; 415315376Sdchagin size_t retval; 416315376Sdchagin 417315376Sdchagin#ifdef DEBUG 418315376Sdchagin if (ldebug(getdents64)) 419315376Sdchagin uprintf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count); 420315376Sdchagin#endif 421315376Sdchagin buflen = LINUX_RECLEN64_RATIO(args->count); 42283221Smarcel buflen = min(buflen, MAXBSIZE); 423315376Sdchagin buf = malloc(buflen, M_TEMP, M_WAITOK); 42483221Smarcel 425315376Sdchagin error = kern_getdirentries(td, args->fd, buf, buflen, 426315376Sdchagin &base, NULL, UIO_SYSSPACE); 427315376Sdchagin if (error != 0) { 428315376Sdchagin error = linux_getdents_error(td, args->fd, error); 429315376Sdchagin goto out1; 430315376Sdchagin } 4319313Ssos 432315376Sdchagin lbuf = malloc(LINUX_RECLEN64(LINUX_NAME_MAX), M_TEMP, M_WAITOK | M_ZERO); 4339313Ssos 434315376Sdchagin len = td->td_retval[0]; 43583221Smarcel inp = buf; 43683221Smarcel outp = (caddr_t)args->dirent; 437315376Sdchagin resid = args->count; 438315376Sdchagin retval = 0; 4399313Ssos 44083221Smarcel while (len > 0) { 44183221Smarcel bdp = (struct dirent *) inp; 44283221Smarcel reclen = bdp->d_reclen; 443315376Sdchagin linuxreclen = LINUX_RECLEN64(bdp->d_namlen); 444315376Sdchagin /* 445315376Sdchagin * No more space in the user supplied dirent buffer. 446315376Sdchagin * Return EINVAL. 447315376Sdchagin */ 448315376Sdchagin if (resid < linuxreclen) { 449315376Sdchagin error = EINVAL; 45083221Smarcel goto out; 45183221Smarcel } 45283221Smarcel 453315376Sdchagin linux_dirent64 = (struct l_dirent64*)lbuf; 454315376Sdchagin linux_dirent64->d_ino = bdp->d_fileno; 455315376Sdchagin linux_dirent64->d_off = base + reclen; 456315376Sdchagin linux_dirent64->d_reclen = linuxreclen; 457315376Sdchagin linux_dirent64->d_type = bdp->d_type; 458315376Sdchagin strlcpy(linux_dirent64->d_name, bdp->d_name, 459315376Sdchagin linuxreclen - offsetof(struct l_dirent64, d_name)); 460315376Sdchagin error = copyout(linux_dirent64, outp, linuxreclen); 461315376Sdchagin if (error != 0) 46283221Smarcel goto out; 46383221Smarcel 46483221Smarcel inp += reclen; 465315376Sdchagin base += reclen; 466315376Sdchagin len -= reclen; 46783221Smarcel 468315376Sdchagin retval += linuxreclen; 46983221Smarcel outp += linuxreclen; 47083221Smarcel resid -= linuxreclen; 47110355Sswallace } 472315376Sdchagin td->td_retval[0] = retval; 4739313Ssos 4749313Ssosout: 475315376Sdchagin free(lbuf, M_TEMP); 476315376Sdchaginout1: 477315376Sdchagin free(buf, M_TEMP); 47883221Smarcel return (error); 4799313Ssos} 48014331Speter 481315376Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 48283221Smarcelint 483315376Sdchaginlinux_readdir(struct thread *td, struct linux_readdir_args *args) 48483221Smarcel{ 485315376Sdchagin struct dirent *bdp; 486315376Sdchagin caddr_t buf; /* BSD-format */ 487315376Sdchagin int linuxreclen; /* Linux-format */ 488315376Sdchagin caddr_t lbuf; /* Linux-format */ 489315376Sdchagin long base; 490315376Sdchagin struct l_dirent *linux_dirent; 491315376Sdchagin int buflen, error; 49283221Smarcel 49383221Smarcel#ifdef DEBUG 494315376Sdchagin if (ldebug(readdir)) 495315376Sdchagin printf(ARGS(readdir, "%d, *"), args->fd); 49683221Smarcel#endif 497315376Sdchagin buflen = LINUX_RECLEN(LINUX_NAME_MAX); 498315376Sdchagin buflen = LINUX_RECLEN_RATIO(buflen); 499315376Sdchagin buf = malloc(buflen, M_TEMP, M_WAITOK); 50083221Smarcel 501315376Sdchagin error = kern_getdirentries(td, args->fd, buf, buflen, 502315376Sdchagin &base, NULL, UIO_SYSSPACE); 503315376Sdchagin if (error != 0) { 504315376Sdchagin error = linux_getdents_error(td, args->fd, error); 505315376Sdchagin goto out; 506315376Sdchagin } 507315376Sdchagin if (td->td_retval[0] == 0) 508315376Sdchagin goto out; 50983221Smarcel 510315376Sdchagin lbuf = malloc(LINUX_RECLEN(LINUX_NAME_MAX), M_TEMP, M_WAITOK | M_ZERO); 51183221Smarcel 512315376Sdchagin bdp = (struct dirent *) buf; 513315376Sdchagin linuxreclen = LINUX_RECLEN(bdp->d_namlen); 51483221Smarcel 515315376Sdchagin linux_dirent = (struct l_dirent*)lbuf; 516315376Sdchagin linux_dirent->d_ino = bdp->d_fileno; 517315376Sdchagin linux_dirent->d_off = linuxreclen; 518315376Sdchagin linux_dirent->d_reclen = bdp->d_namlen; 519315376Sdchagin strlcpy(linux_dirent->d_name, bdp->d_name, 520315376Sdchagin linuxreclen - offsetof(struct l_dirent, d_name)); 521315376Sdchagin error = copyout(linux_dirent, args->dent, linuxreclen); 522315376Sdchagin if (error == 0) 523315376Sdchagin td->td_retval[0] = linuxreclen; 524315376Sdchagin 525315376Sdchagin free(lbuf, M_LINUX); 526315376Sdchaginout: 527315376Sdchagin free(buf, M_LINUX); 528315376Sdchagin return (error); 52983221Smarcel} 530315376Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 53183221Smarcel 532315376Sdchagin 53314331Speter/* 53414331Speter * These exist mainly for hooks for doing /compat/linux translation. 53514331Speter */ 53614331Speter 53714331Speterint 53883366Sjulianlinux_access(struct thread *td, struct linux_access_args *args) 53914331Speter{ 540102814Siedowse char *path; 541102814Siedowse int error; 54214331Speter 543162585Snetchild /* linux convention */ 544227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 545162585Snetchild return (EINVAL); 546162585Snetchild 547102814Siedowse LCONVPATHEXIST(td, args->path, &path); 54814331Speter 54914331Speter#ifdef DEBUG 55072543Sjlemon if (ldebug(access)) 551227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 55214331Speter#endif 553274476Skib error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0, 554274476Skib args->amode); 555102814Siedowse LFREEPATH(path); 556162585Snetchild 557102814Siedowse return (error); 55814331Speter} 55914331Speter 56014331Speterint 561177997Skiblinux_faccessat(struct thread *td, struct linux_faccessat_args *args) 562177997Skib{ 563177997Skib char *path; 564283428Sdchagin int error, dfd; 565177997Skib 566177997Skib /* linux convention */ 567227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 568177997Skib return (EINVAL); 569177997Skib 570177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 571177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 572177997Skib 573177997Skib#ifdef DEBUG 574177997Skib if (ldebug(access)) 575227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 576177997Skib#endif 577177997Skib 578283428Sdchagin error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode); 579177997Skib LFREEPATH(path); 580177997Skib 581177997Skib return (error); 582177997Skib} 583177997Skib 584177997Skibint 58583366Sjulianlinux_unlink(struct thread *td, struct linux_unlink_args *args) 58614331Speter{ 587102814Siedowse char *path; 588102814Siedowse int error; 589162201Snetchild struct stat st; 59014331Speter 591102814Siedowse LCONVPATHEXIST(td, args->path, &path); 59214331Speter 59314331Speter#ifdef DEBUG 59472543Sjlemon if (ldebug(unlink)) 595102814Siedowse printf(ARGS(unlink, "%s"), path); 59614331Speter#endif 59714331Speter 598274476Skib error = kern_unlinkat(td, AT_FDCWD, path, UIO_SYSSPACE, 0); 599274476Skib if (error == EPERM) { 600162201Snetchild /* Introduce POSIX noncompliant behaviour of Linux */ 601274476Skib if (kern_statat(td, 0, AT_FDCWD, path, UIO_SYSSPACE, &st, 602274476Skib NULL) == 0) { 603162201Snetchild if (S_ISDIR(st.st_mode)) 604162201Snetchild error = EISDIR; 605274476Skib } 606274476Skib } 607102814Siedowse LFREEPATH(path); 608102814Siedowse return (error); 60914331Speter} 61014331Speter 61114331Speterint 612177997Skiblinux_unlinkat(struct thread *td, struct linux_unlinkat_args *args) 613177997Skib{ 614177997Skib char *path; 615177997Skib int error, dfd; 616177997Skib struct stat st; 617177997Skib 618177997Skib if (args->flag & ~LINUX_AT_REMOVEDIR) 619177997Skib return (EINVAL); 620177997Skib 621177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 622177997Skib LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); 623177997Skib 624177997Skib#ifdef DEBUG 625177997Skib if (ldebug(unlinkat)) 626177997Skib printf(ARGS(unlinkat, "%s"), path); 627177997Skib#endif 628177997Skib 629177997Skib if (args->flag & LINUX_AT_REMOVEDIR) 630177997Skib error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE); 631177997Skib else 632202113Smckusick error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0); 633177997Skib if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) { 634177997Skib /* Introduce POSIX noncompliant behaviour of Linux */ 635177997Skib if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path, 636274476Skib UIO_SYSSPACE, &st, NULL) == 0 && S_ISDIR(st.st_mode)) 637177997Skib error = EISDIR; 638177997Skib } 639177997Skib LFREEPATH(path); 640177997Skib return (error); 641177997Skib} 642177997Skibint 64383366Sjulianlinux_chdir(struct thread *td, struct linux_chdir_args *args) 64414331Speter{ 645102814Siedowse char *path; 646102814Siedowse int error; 64714331Speter 648102814Siedowse LCONVPATHEXIST(td, args->path, &path); 64914331Speter 65014331Speter#ifdef DEBUG 65172543Sjlemon if (ldebug(chdir)) 652102814Siedowse printf(ARGS(chdir, "%s"), path); 65314331Speter#endif 654102814Siedowse error = kern_chdir(td, path, UIO_SYSSPACE); 655102814Siedowse LFREEPATH(path); 656102814Siedowse return (error); 65714331Speter} 65814331Speter 65914331Speterint 66083366Sjulianlinux_chmod(struct thread *td, struct linux_chmod_args *args) 66114331Speter{ 662102814Siedowse char *path; 663102814Siedowse int error; 66414331Speter 665102814Siedowse LCONVPATHEXIST(td, args->path, &path); 66614331Speter 66714331Speter#ifdef DEBUG 66872543Sjlemon if (ldebug(chmod)) 669102814Siedowse printf(ARGS(chmod, "%s, %d"), path, args->mode); 67014331Speter#endif 671274476Skib error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE, 672274476Skib args->mode, 0); 673102814Siedowse LFREEPATH(path); 674102814Siedowse return (error); 67514331Speter} 67614331Speter 67714331Speterint 678177997Skiblinux_fchmodat(struct thread *td, struct linux_fchmodat_args *args) 679177997Skib{ 680177997Skib char *path; 681177997Skib int error, dfd; 682177997Skib 683177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 684177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 685177997Skib 686177997Skib#ifdef DEBUG 687177997Skib if (ldebug(fchmodat)) 688177997Skib printf(ARGS(fchmodat, "%s, %d"), path, args->mode); 689177997Skib#endif 690177997Skib 691177997Skib error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0); 692177997Skib LFREEPATH(path); 693177997Skib return (error); 694177997Skib} 695177997Skib 696177997Skibint 69783366Sjulianlinux_mkdir(struct thread *td, struct linux_mkdir_args *args) 69814331Speter{ 699102814Siedowse char *path; 700102814Siedowse int error; 70114331Speter 702102814Siedowse LCONVPATHCREAT(td, args->path, &path); 70314331Speter 70414331Speter#ifdef DEBUG 70572543Sjlemon if (ldebug(mkdir)) 706102814Siedowse printf(ARGS(mkdir, "%s, %d"), path, args->mode); 70714331Speter#endif 708274476Skib error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, args->mode); 709102814Siedowse LFREEPATH(path); 710102814Siedowse return (error); 71114331Speter} 71214331Speter 71314331Speterint 714177997Skiblinux_mkdirat(struct thread *td, struct linux_mkdirat_args *args) 715177997Skib{ 716177997Skib char *path; 717177997Skib int error, dfd; 718177997Skib 719177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 720177997Skib LCONVPATHCREAT_AT(td, args->pathname, &path, dfd); 721177997Skib 722177997Skib#ifdef DEBUG 723177997Skib if (ldebug(mkdirat)) 724177997Skib printf(ARGS(mkdirat, "%s, %d"), path, args->mode); 725177997Skib#endif 726177997Skib error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode); 727177997Skib LFREEPATH(path); 728177997Skib return (error); 729177997Skib} 730177997Skib 731177997Skibint 73283366Sjulianlinux_rmdir(struct thread *td, struct linux_rmdir_args *args) 73314331Speter{ 734102814Siedowse char *path; 735102814Siedowse int error; 73614331Speter 737102814Siedowse LCONVPATHEXIST(td, args->path, &path); 73814331Speter 73914331Speter#ifdef DEBUG 74072543Sjlemon if (ldebug(rmdir)) 741102814Siedowse printf(ARGS(rmdir, "%s"), path); 74214331Speter#endif 743274476Skib error = kern_rmdirat(td, AT_FDCWD, path, UIO_SYSSPACE); 744102814Siedowse LFREEPATH(path); 745102814Siedowse return (error); 74614331Speter} 74714331Speter 74814331Speterint 74983366Sjulianlinux_rename(struct thread *td, struct linux_rename_args *args) 75014331Speter{ 751102814Siedowse char *from, *to; 752102814Siedowse int error; 75314331Speter 754102814Siedowse LCONVPATHEXIST(td, args->from, &from); 755102814Siedowse /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 756177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 757102814Siedowse if (to == NULL) { 758102814Siedowse LFREEPATH(from); 759102814Siedowse return (error); 760102814Siedowse } 76114331Speter 76214331Speter#ifdef DEBUG 76372543Sjlemon if (ldebug(rename)) 764102814Siedowse printf(ARGS(rename, "%s, %s"), from, to); 76514331Speter#endif 766274476Skib error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE); 767102814Siedowse LFREEPATH(from); 768102814Siedowse LFREEPATH(to); 769102814Siedowse return (error); 77014331Speter} 77114331Speter 77214331Speterint 773177997Skiblinux_renameat(struct thread *td, struct linux_renameat_args *args) 774177997Skib{ 775177997Skib char *from, *to; 776177997Skib int error, olddfd, newdfd; 777177997Skib 778177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 779177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 780177997Skib LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd); 781177997Skib /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 782177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 783177997Skib if (to == NULL) { 784177997Skib LFREEPATH(from); 785177997Skib return (error); 786177997Skib } 787177997Skib 788177997Skib#ifdef DEBUG 789177997Skib if (ldebug(renameat)) 790177997Skib printf(ARGS(renameat, "%s, %s"), from, to); 791177997Skib#endif 792177997Skib error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE); 793177997Skib LFREEPATH(from); 794177997Skib LFREEPATH(to); 795177997Skib return (error); 796177997Skib} 797177997Skib 798177997Skibint 79983366Sjulianlinux_symlink(struct thread *td, struct linux_symlink_args *args) 80014331Speter{ 801102814Siedowse char *path, *to; 802102814Siedowse int error; 80314331Speter 804102814Siedowse LCONVPATHEXIST(td, args->path, &path); 805102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 806177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 807102814Siedowse if (to == NULL) { 808102814Siedowse LFREEPATH(path); 809102814Siedowse return (error); 810102814Siedowse } 81114331Speter 81214331Speter#ifdef DEBUG 81372543Sjlemon if (ldebug(symlink)) 814102814Siedowse printf(ARGS(symlink, "%s, %s"), path, to); 81514331Speter#endif 816274476Skib error = kern_symlinkat(td, path, AT_FDCWD, to, UIO_SYSSPACE); 817102814Siedowse LFREEPATH(path); 818102814Siedowse LFREEPATH(to); 819102814Siedowse return (error); 82014331Speter} 82114331Speter 82214331Speterint 823177997Skiblinux_symlinkat(struct thread *td, struct linux_symlinkat_args *args) 824177997Skib{ 825177997Skib char *path, *to; 826177997Skib int error, dfd; 827177997Skib 828177997Skib dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 829177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, dfd); 830177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 831177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd); 832177997Skib if (to == NULL) { 833177997Skib LFREEPATH(path); 834177997Skib return (error); 835177997Skib } 836177997Skib 837177997Skib#ifdef DEBUG 838177997Skib if (ldebug(symlinkat)) 839177997Skib printf(ARGS(symlinkat, "%s, %s"), path, to); 840177997Skib#endif 841177997Skib 842177997Skib error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE); 843177997Skib LFREEPATH(path); 844177997Skib LFREEPATH(to); 845177997Skib return (error); 846177997Skib} 847177997Skib 848177997Skibint 84983366Sjulianlinux_readlink(struct thread *td, struct linux_readlink_args *args) 85014331Speter{ 851102814Siedowse char *name; 852102814Siedowse int error; 85314331Speter 854102814Siedowse LCONVPATHEXIST(td, args->name, &name); 85514331Speter 85614331Speter#ifdef DEBUG 85772543Sjlemon if (ldebug(readlink)) 858102814Siedowse printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf, 859102814Siedowse args->count); 86014331Speter#endif 861274476Skib error = kern_readlinkat(td, AT_FDCWD, name, UIO_SYSSPACE, 862274476Skib args->buf, UIO_USERSPACE, args->count); 863102814Siedowse LFREEPATH(name); 864102814Siedowse return (error); 86514331Speter} 86614331Speter 86714331Speterint 868177997Skiblinux_readlinkat(struct thread *td, struct linux_readlinkat_args *args) 869177997Skib{ 870177997Skib char *name; 871177997Skib int error, dfd; 872177997Skib 873177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 874177997Skib LCONVPATHEXIST_AT(td, args->path, &name, dfd); 875177997Skib 876177997Skib#ifdef DEBUG 877177997Skib if (ldebug(readlinkat)) 878177997Skib printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf, 879177997Skib args->bufsiz); 880177997Skib#endif 881177997Skib 882177997Skib error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf, 883177997Skib UIO_USERSPACE, args->bufsiz); 884177997Skib LFREEPATH(name); 885177997Skib return (error); 886177997Skib} 887178439Srdivacky 888177997Skibint 88983366Sjulianlinux_truncate(struct thread *td, struct linux_truncate_args *args) 89014331Speter{ 891102814Siedowse char *path; 892102814Siedowse int error; 89314331Speter 894102814Siedowse LCONVPATHEXIST(td, args->path, &path); 89514331Speter 89614331Speter#ifdef DEBUG 89772543Sjlemon if (ldebug(truncate)) 898102814Siedowse printf(ARGS(truncate, "%s, %ld"), path, (long)args->length); 89914331Speter#endif 90014331Speter 901102814Siedowse error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 902102814Siedowse LFREEPATH(path); 903102814Siedowse return (error); 90414331Speter} 90514331Speter 906283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 90749662Smarcelint 908178439Srdivackylinux_truncate64(struct thread *td, struct linux_truncate64_args *args) 909178439Srdivacky{ 910178439Srdivacky char *path; 911178439Srdivacky int error; 912178439Srdivacky 913178439Srdivacky LCONVPATHEXIST(td, args->path, &path); 914178439Srdivacky 915178439Srdivacky#ifdef DEBUG 916178439Srdivacky if (ldebug(truncate64)) 917178439Srdivacky printf(ARGS(truncate64, "%s, %jd"), path, args->length); 918178439Srdivacky#endif 919178439Srdivacky 920178439Srdivacky error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 921178439Srdivacky LFREEPATH(path); 922178439Srdivacky return (error); 923178439Srdivacky} 924283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 925283415Sdchagin 926178439Srdivackyint 927156842Snetchildlinux_ftruncate(struct thread *td, struct linux_ftruncate_args *args) 928156842Snetchild{ 929300411Sdchagin 930315548Strasz return (kern_ftruncate(td, args->fd, args->length)); 931156842Snetchild} 932156842Snetchild 933156842Snetchildint 93483366Sjulianlinux_link(struct thread *td, struct linux_link_args *args) 93549662Smarcel{ 936102814Siedowse char *path, *to; 937102814Siedowse int error; 93849662Smarcel 939102814Siedowse LCONVPATHEXIST(td, args->path, &path); 940102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 941177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 942102814Siedowse if (to == NULL) { 943102814Siedowse LFREEPATH(path); 944102814Siedowse return (error); 945102814Siedowse } 94649662Smarcel 94749662Smarcel#ifdef DEBUG 94872543Sjlemon if (ldebug(link)) 949102814Siedowse printf(ARGS(link, "%s, %s"), path, to); 95049662Smarcel#endif 951274476Skib error = kern_linkat(td, AT_FDCWD, AT_FDCWD, path, to, UIO_SYSSPACE, 952274476Skib FOLLOW); 953102814Siedowse LFREEPATH(path); 954102814Siedowse LFREEPATH(to); 955102814Siedowse return (error); 95649662Smarcel} 95749788Smarcel 95853713Smarcelint 959177997Skiblinux_linkat(struct thread *td, struct linux_linkat_args *args) 960177997Skib{ 961177997Skib char *path, *to; 962227693Sed int error, olddfd, newdfd, follow; 963177997Skib 964227693Sed if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW) 965177997Skib return (EINVAL); 966177997Skib 967177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 968177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 969177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd); 970177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 971177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 972177997Skib if (to == NULL) { 973177997Skib LFREEPATH(path); 974177997Skib return (error); 975177997Skib } 976177997Skib 977177997Skib#ifdef DEBUG 978177997Skib if (ldebug(linkat)) 979177997Skib printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path, 980227693Sed args->newdfd, to, args->flag); 981177997Skib#endif 982177997Skib 983227693Sed follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW : 984227693Sed FOLLOW; 985227693Sed error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow); 986177997Skib LFREEPATH(path); 987177997Skib LFREEPATH(to); 988177997Skib return (error); 989177997Skib} 990177997Skib 991177997Skibint 99283366Sjulianlinux_fdatasync(td, uap) 99383366Sjulian struct thread *td; 99453713Smarcel struct linux_fdatasync_args *uap; 99553713Smarcel{ 99653713Smarcel 997304987Skib return (kern_fsync(td, uap->fd, false)); 99853713Smarcel} 99963285Smarcel 100063285Smarcelint 100183366Sjulianlinux_pread(td, uap) 100283366Sjulian struct thread *td; 100363285Smarcel struct linux_pread_args *uap; 100463285Smarcel{ 100563285Smarcel struct pread_args bsd; 1006255219Spjd cap_rights_t rights; 1007162585Snetchild struct vnode *vp; 1008162585Snetchild int error; 100963285Smarcel 101063285Smarcel bsd.fd = uap->fd; 101163285Smarcel bsd.buf = uap->buf; 101263285Smarcel bsd.nbyte = uap->nbyte; 101363285Smarcel bsd.offset = uap->offset; 1014225617Skmacy error = sys_pread(td, &bsd); 1015162585Snetchild if (error == 0) { 1016247602Spjd /* This seems to violate POSIX but linux does it */ 1017255219Spjd error = fgetvp(td, uap->fd, 1018255219Spjd cap_rights_init(&rights, CAP_PREAD), &vp); 1019255219Spjd if (error != 0) 1020247602Spjd return (error); 1021162585Snetchild if (vp->v_type == VDIR) { 1022247602Spjd vrele(vp); 1023162585Snetchild return (EISDIR); 1024162585Snetchild } 1025162585Snetchild vrele(vp); 1026162585Snetchild } 1027162585Snetchild return (error); 102863285Smarcel} 102963285Smarcel 103063285Smarcelint 103183366Sjulianlinux_pwrite(td, uap) 103283366Sjulian struct thread *td; 103363285Smarcel struct linux_pwrite_args *uap; 103463285Smarcel{ 103563285Smarcel struct pwrite_args bsd; 103663285Smarcel 103763285Smarcel bsd.fd = uap->fd; 103863285Smarcel bsd.buf = uap->buf; 103963285Smarcel bsd.nbyte = uap->nbyte; 104063285Smarcel bsd.offset = uap->offset; 1041300411Sdchagin return (sys_pwrite(td, &bsd)); 104263285Smarcel} 104372538Sjlemon 104472538Sjlemonint 1045314909Smmokhilinux_preadv(struct thread *td, struct linux_preadv_args *uap) 1046314909Smmokhi{ 1047314909Smmokhi struct uio *auio; 1048314909Smmokhi int error; 1049314909Smmokhi off_t offset; 1050314909Smmokhi 1051314909Smmokhi /* 1052314909Smmokhi * According http://man7.org/linux/man-pages/man2/preadv.2.html#NOTES 1053314909Smmokhi * pos_l and pos_h, respectively, contain the 1054314909Smmokhi * low order and high order 32 bits of offset. 1055314909Smmokhi */ 1056314909Smmokhi offset = (((off_t)uap->pos_h << (sizeof(offset) * 4)) << 1057314909Smmokhi (sizeof(offset) * 4)) | uap->pos_l; 1058314909Smmokhi if (offset < 0) 1059314909Smmokhi return (EINVAL); 1060314909Smmokhi#ifdef COMPAT_LINUX32 1061314909Smmokhi error = linux32_copyinuio(PTRIN(uap->vec), uap->vlen, &auio); 1062314909Smmokhi#else 1063314909Smmokhi error = copyinuio(uap->vec, uap->vlen, &auio); 1064314909Smmokhi#endif 1065314909Smmokhi if (error != 0) 1066314909Smmokhi return (error); 1067314909Smmokhi error = kern_preadv(td, uap->fd, auio, offset); 1068314909Smmokhi free(auio, M_IOV); 1069314909Smmokhi return (error); 1070314909Smmokhi} 1071314909Smmokhi 1072314909Smmokhiint 1073314909Smmokhilinux_pwritev(struct thread *td, struct linux_pwritev_args *uap) 1074314909Smmokhi{ 1075314909Smmokhi struct uio *auio; 1076314909Smmokhi int error; 1077314909Smmokhi off_t offset; 1078314909Smmokhi 1079314909Smmokhi /* 1080314909Smmokhi * According http://man7.org/linux/man-pages/man2/pwritev.2.html#NOTES 1081314909Smmokhi * pos_l and pos_h, respectively, contain the 1082314909Smmokhi * low order and high order 32 bits of offset. 1083314909Smmokhi */ 1084314909Smmokhi offset = (((off_t)uap->pos_h << (sizeof(offset) * 4)) << 1085314909Smmokhi (sizeof(offset) * 4)) | uap->pos_l; 1086314909Smmokhi if (offset < 0) 1087314909Smmokhi return (EINVAL); 1088314909Smmokhi#ifdef COMPAT_LINUX32 1089314909Smmokhi error = linux32_copyinuio(PTRIN(uap->vec), uap->vlen, &auio); 1090314909Smmokhi#else 1091314909Smmokhi error = copyinuio(uap->vec, uap->vlen, &auio); 1092314909Smmokhi#endif 1093314909Smmokhi if (error != 0) 1094314909Smmokhi return (error); 1095314909Smmokhi error = kern_pwritev(td, uap->fd, auio, offset); 1096314909Smmokhi free(auio, M_IOV); 1097314909Smmokhi return (error); 1098314909Smmokhi} 1099314909Smmokhi 1100314909Smmokhiint 110183366Sjulianlinux_mount(struct thread *td, struct linux_mount_args *args) 110272538Sjlemon{ 1103111798Sdes char fstypename[MFSNAMELEN]; 1104111798Sdes char mntonname[MNAMELEN], mntfromname[MNAMELEN]; 110573286Sadrian int error; 110673286Sadrian int fsflags; 110772538Sjlemon 1108111798Sdes error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1, 110973286Sadrian NULL); 111072538Sjlemon if (error) 1111111798Sdes return (error); 1112127057Stjr error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL); 111372538Sjlemon if (error) 1114111798Sdes return (error); 1115127057Stjr error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL); 111672538Sjlemon if (error) 1117111798Sdes return (error); 111872538Sjlemon 111972538Sjlemon#ifdef DEBUG 112072538Sjlemon if (ldebug(mount)) 112172538Sjlemon printf(ARGS(mount, "%s, %s, %s"), 112272538Sjlemon fstypename, mntfromname, mntonname); 112372538Sjlemon#endif 112472538Sjlemon 112572538Sjlemon if (strcmp(fstypename, "ext2") == 0) { 1126127059Stjr strcpy(fstypename, "ext2fs"); 112772538Sjlemon } else if (strcmp(fstypename, "proc") == 0) { 1128127059Stjr strcpy(fstypename, "linprocfs"); 1129190445Sambrisko } else if (strcmp(fstypename, "vfat") == 0) { 1130190445Sambrisko strcpy(fstypename, "msdosfs"); 113172538Sjlemon } 113272538Sjlemon 113373286Sadrian fsflags = 0; 113472538Sjlemon 113572538Sjlemon if ((args->rwflag & 0xffff0000) == 0xc0ed0000) { 113672538Sjlemon /* 113772538Sjlemon * Linux SYNC flag is not included; the closest equivalent 113872538Sjlemon * FreeBSD has is !ASYNC, which is our default. 113972538Sjlemon */ 114072538Sjlemon if (args->rwflag & LINUX_MS_RDONLY) 1141111798Sdes fsflags |= MNT_RDONLY; 114272538Sjlemon if (args->rwflag & LINUX_MS_NOSUID) 1143111798Sdes fsflags |= MNT_NOSUID; 114472538Sjlemon if (args->rwflag & LINUX_MS_NOEXEC) 1145111798Sdes fsflags |= MNT_NOEXEC; 114672538Sjlemon if (args->rwflag & LINUX_MS_REMOUNT) 1147111798Sdes fsflags |= MNT_UPDATE; 114872538Sjlemon } 114972538Sjlemon 1150281689Strasz error = kernel_vmount(fsflags, 1151281689Strasz "fstype", fstypename, 1152281689Strasz "fspath", mntonname, 1153281689Strasz "from", mntfromname, 1154281689Strasz NULL); 1155127059Stjr return (error); 115672538Sjlemon} 115772538Sjlemon 1158283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 115972538Sjlemonint 116083366Sjulianlinux_oldumount(struct thread *td, struct linux_oldumount_args *args) 116172538Sjlemon{ 116283221Smarcel struct linux_umount_args args2; 116372538Sjlemon 116472538Sjlemon args2.path = args->path; 116572538Sjlemon args2.flags = 0; 116683366Sjulian return (linux_umount(td, &args2)); 116772538Sjlemon} 1168283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 116972538Sjlemon 117072538Sjlemonint 117183366Sjulianlinux_umount(struct thread *td, struct linux_umount_args *args) 117272538Sjlemon{ 117372538Sjlemon struct unmount_args bsd; 117472538Sjlemon 117572538Sjlemon bsd.path = args->path; 117672538Sjlemon bsd.flags = args->flags; /* XXX correct? */ 1177225617Skmacy return (sys_unmount(td, &bsd)); 117872538Sjlemon} 117983221Smarcel 118083221Smarcel/* 118183221Smarcel * fcntl family of syscalls 118283221Smarcel */ 118383221Smarcel 118483221Smarcelstruct l_flock { 118583221Smarcel l_short l_type; 118683221Smarcel l_short l_whence; 118783221Smarcel l_off_t l_start; 118883221Smarcel l_off_t l_len; 118983221Smarcel l_pid_t l_pid; 1190133816Stjr} 1191140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1192133816Stjr__packed 1193133816Stjr#endif 1194133816Stjr; 119583221Smarcel 119683221Smarcelstatic void 119783221Smarcellinux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock) 119883221Smarcel{ 119983221Smarcel switch (linux_flock->l_type) { 120083221Smarcel case LINUX_F_RDLCK: 120183221Smarcel bsd_flock->l_type = F_RDLCK; 120283221Smarcel break; 120383221Smarcel case LINUX_F_WRLCK: 120483221Smarcel bsd_flock->l_type = F_WRLCK; 120583221Smarcel break; 120683221Smarcel case LINUX_F_UNLCK: 120783221Smarcel bsd_flock->l_type = F_UNLCK; 120883221Smarcel break; 120983221Smarcel default: 121083221Smarcel bsd_flock->l_type = -1; 121183221Smarcel break; 121283221Smarcel } 121383221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 121483221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 121583221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 121683221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1217177633Sdfr bsd_flock->l_sysid = 0; 121883221Smarcel} 121983221Smarcel 122083221Smarcelstatic void 122183221Smarcelbsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock) 122283221Smarcel{ 122383221Smarcel switch (bsd_flock->l_type) { 122483221Smarcel case F_RDLCK: 122583221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 122683221Smarcel break; 122783221Smarcel case F_WRLCK: 122883221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 122983221Smarcel break; 123083221Smarcel case F_UNLCK: 123183221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 123283221Smarcel break; 123383221Smarcel } 123483221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 123583221Smarcel linux_flock->l_start = (l_off_t)bsd_flock->l_start; 123683221Smarcel linux_flock->l_len = (l_off_t)bsd_flock->l_len; 123783221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 123883221Smarcel} 123983221Smarcel 1240140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 124183221Smarcelstruct l_flock64 { 124283221Smarcel l_short l_type; 124383221Smarcel l_short l_whence; 124483221Smarcel l_loff_t l_start; 124583221Smarcel l_loff_t l_len; 124683221Smarcel l_pid_t l_pid; 1247133816Stjr} 1248140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1249133816Stjr__packed 1250133816Stjr#endif 1251133816Stjr; 125283221Smarcel 125383221Smarcelstatic void 125483221Smarcellinux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock) 125583221Smarcel{ 125683221Smarcel switch (linux_flock->l_type) { 125783221Smarcel case LINUX_F_RDLCK: 125883221Smarcel bsd_flock->l_type = F_RDLCK; 125983221Smarcel break; 126083221Smarcel case LINUX_F_WRLCK: 126183221Smarcel bsd_flock->l_type = F_WRLCK; 126283221Smarcel break; 126383221Smarcel case LINUX_F_UNLCK: 126483221Smarcel bsd_flock->l_type = F_UNLCK; 126583221Smarcel break; 126683221Smarcel default: 126783221Smarcel bsd_flock->l_type = -1; 126883221Smarcel break; 126983221Smarcel } 127083221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 127183221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 127283221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 127383221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1274177633Sdfr bsd_flock->l_sysid = 0; 127583221Smarcel} 127683221Smarcel 127783221Smarcelstatic void 127883221Smarcelbsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock) 127983221Smarcel{ 128083221Smarcel switch (bsd_flock->l_type) { 128183221Smarcel case F_RDLCK: 128283221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 128383221Smarcel break; 128483221Smarcel case F_WRLCK: 128583221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 128683221Smarcel break; 128783221Smarcel case F_UNLCK: 128883221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 128983221Smarcel break; 129083221Smarcel } 129183221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 129283221Smarcel linux_flock->l_start = (l_loff_t)bsd_flock->l_start; 129383221Smarcel linux_flock->l_len = (l_loff_t)bsd_flock->l_len; 129483221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 129583221Smarcel} 1296133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 129783221Smarcel 129883221Smarcelstatic int 1299283415Sdchaginfcntl_common(struct thread *td, struct linux_fcntl_args *args) 130083221Smarcel{ 1301107680Siedowse struct l_flock linux_flock; 1302107680Siedowse struct flock bsd_flock; 1303255219Spjd cap_rights_t rights; 130483221Smarcel struct file *fp; 1305102872Siedowse long arg; 130683221Smarcel int error, result; 130783221Smarcel 130883221Smarcel switch (args->cmd) { 130983221Smarcel case LINUX_F_DUPFD: 1310102872Siedowse return (kern_fcntl(td, args->fd, F_DUPFD, args->arg)); 131183221Smarcel 131283221Smarcel case LINUX_F_GETFD: 1313102872Siedowse return (kern_fcntl(td, args->fd, F_GETFD, 0)); 131483221Smarcel 131583221Smarcel case LINUX_F_SETFD: 1316102872Siedowse return (kern_fcntl(td, args->fd, F_SETFD, args->arg)); 131783221Smarcel 131883221Smarcel case LINUX_F_GETFL: 1319102872Siedowse error = kern_fcntl(td, args->fd, F_GETFL, 0); 132083366Sjulian result = td->td_retval[0]; 132183366Sjulian td->td_retval[0] = 0; 132283221Smarcel if (result & O_RDONLY) 132383366Sjulian td->td_retval[0] |= LINUX_O_RDONLY; 132483221Smarcel if (result & O_WRONLY) 132583366Sjulian td->td_retval[0] |= LINUX_O_WRONLY; 132683221Smarcel if (result & O_RDWR) 132783366Sjulian td->td_retval[0] |= LINUX_O_RDWR; 132883221Smarcel if (result & O_NDELAY) 132983366Sjulian td->td_retval[0] |= LINUX_O_NONBLOCK; 133083221Smarcel if (result & O_APPEND) 133183366Sjulian td->td_retval[0] |= LINUX_O_APPEND; 133283221Smarcel if (result & O_FSYNC) 133383366Sjulian td->td_retval[0] |= LINUX_O_SYNC; 133483221Smarcel if (result & O_ASYNC) 133583366Sjulian td->td_retval[0] |= LINUX_FASYNC; 1336144987Smdodd#ifdef LINUX_O_NOFOLLOW 1337144987Smdodd if (result & O_NOFOLLOW) 1338144987Smdodd td->td_retval[0] |= LINUX_O_NOFOLLOW; 1339144987Smdodd#endif 1340144987Smdodd#ifdef LINUX_O_DIRECT 1341144987Smdodd if (result & O_DIRECT) 1342144987Smdodd td->td_retval[0] |= LINUX_O_DIRECT; 1343144987Smdodd#endif 134483221Smarcel return (error); 134583221Smarcel 134683221Smarcel case LINUX_F_SETFL: 1347102872Siedowse arg = 0; 134883221Smarcel if (args->arg & LINUX_O_NDELAY) 1349102872Siedowse arg |= O_NONBLOCK; 135083221Smarcel if (args->arg & LINUX_O_APPEND) 1351102872Siedowse arg |= O_APPEND; 135283221Smarcel if (args->arg & LINUX_O_SYNC) 1353102872Siedowse arg |= O_FSYNC; 135483221Smarcel if (args->arg & LINUX_FASYNC) 1355102872Siedowse arg |= O_ASYNC; 1356144987Smdodd#ifdef LINUX_O_NOFOLLOW 1357144987Smdodd if (args->arg & LINUX_O_NOFOLLOW) 1358144987Smdodd arg |= O_NOFOLLOW; 1359144987Smdodd#endif 1360144987Smdodd#ifdef LINUX_O_DIRECT 1361144987Smdodd if (args->arg & LINUX_O_DIRECT) 1362144987Smdodd arg |= O_DIRECT; 1363144987Smdodd#endif 1364102872Siedowse return (kern_fcntl(td, args->fd, F_SETFL, arg)); 136583221Smarcel 1366107680Siedowse case LINUX_F_GETLK: 1367111797Sdes error = copyin((void *)args->arg, &linux_flock, 1368107680Siedowse sizeof(linux_flock)); 1369107680Siedowse if (error) 1370107680Siedowse return (error); 1371107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1372107680Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1373107680Siedowse if (error) 1374107680Siedowse return (error); 1375107680Siedowse bsd_to_linux_flock(&bsd_flock, &linux_flock); 1376111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1377107680Siedowse sizeof(linux_flock))); 1378107680Siedowse 1379107680Siedowse case LINUX_F_SETLK: 1380111797Sdes error = copyin((void *)args->arg, &linux_flock, 1381107680Siedowse sizeof(linux_flock)); 1382107680Siedowse if (error) 1383107680Siedowse return (error); 1384107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1385107680Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1386107680Siedowse (intptr_t)&bsd_flock)); 1387107680Siedowse 1388107680Siedowse case LINUX_F_SETLKW: 1389111797Sdes error = copyin((void *)args->arg, &linux_flock, 1390107680Siedowse sizeof(linux_flock)); 1391107680Siedowse if (error) 1392107680Siedowse return (error); 1393107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1394107680Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1395107680Siedowse (intptr_t)&bsd_flock)); 1396107680Siedowse 139783221Smarcel case LINUX_F_GETOWN: 1398102872Siedowse return (kern_fcntl(td, args->fd, F_GETOWN, 0)); 139983221Smarcel 140083221Smarcel case LINUX_F_SETOWN: 140183221Smarcel /* 140283221Smarcel * XXX some Linux applications depend on F_SETOWN having no 140383221Smarcel * significant effect for pipes (SIGIO is not delivered for 140483221Smarcel * pipes under Linux-2.2.35 at least). 140583221Smarcel */ 1406255219Spjd error = fget(td, args->fd, 1407255219Spjd cap_rights_init(&rights, CAP_FCNTL), &fp); 140889319Salfred if (error) 140989319Salfred return (error); 141089306Salfred if (fp->f_type == DTYPE_PIPE) { 141189306Salfred fdrop(fp, td); 141283221Smarcel return (EINVAL); 141389306Salfred } 141489306Salfred fdrop(fp, td); 141583221Smarcel 1416102872Siedowse return (kern_fcntl(td, args->fd, F_SETOWN, args->arg)); 1417283439Sdchagin 1418283439Sdchagin case LINUX_F_DUPFD_CLOEXEC: 1419283439Sdchagin return (kern_fcntl(td, args->fd, F_DUPFD_CLOEXEC, args->arg)); 142083221Smarcel } 142183221Smarcel 142283221Smarcel return (EINVAL); 142383221Smarcel} 142483221Smarcel 142583221Smarcelint 142683366Sjulianlinux_fcntl(struct thread *td, struct linux_fcntl_args *args) 142783221Smarcel{ 142883221Smarcel 142983221Smarcel#ifdef DEBUG 143083221Smarcel if (ldebug(fcntl)) 143183221Smarcel printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd); 143283221Smarcel#endif 143383221Smarcel 1434283415Sdchagin return (fcntl_common(td, args)); 143583221Smarcel} 143683221Smarcel 1437140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 143883221Smarcelint 143983366Sjulianlinux_fcntl64(struct thread *td, struct linux_fcntl64_args *args) 144083221Smarcel{ 144183221Smarcel struct l_flock64 linux_flock; 1442102872Siedowse struct flock bsd_flock; 1443283415Sdchagin struct linux_fcntl_args fcntl_args; 144483221Smarcel int error; 144583221Smarcel 144683221Smarcel#ifdef DEBUG 144783221Smarcel if (ldebug(fcntl64)) 144883221Smarcel printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd); 144983221Smarcel#endif 145083221Smarcel 145183221Smarcel switch (args->cmd) { 145299687Srobert case LINUX_F_GETLK64: 1453111797Sdes error = copyin((void *)args->arg, &linux_flock, 145483221Smarcel sizeof(linux_flock)); 145583221Smarcel if (error) 145683221Smarcel return (error); 1457102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1458102872Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 145983221Smarcel if (error) 146083221Smarcel return (error); 1461102872Siedowse bsd_to_linux_flock64(&bsd_flock, &linux_flock); 1462111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1463111797Sdes sizeof(linux_flock))); 146483221Smarcel 146599687Srobert case LINUX_F_SETLK64: 1466111797Sdes error = copyin((void *)args->arg, &linux_flock, 146783221Smarcel sizeof(linux_flock)); 146883221Smarcel if (error) 146983221Smarcel return (error); 1470102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1471102872Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1472102872Siedowse (intptr_t)&bsd_flock)); 147383221Smarcel 147499687Srobert case LINUX_F_SETLKW64: 1475111797Sdes error = copyin((void *)args->arg, &linux_flock, 147683221Smarcel sizeof(linux_flock)); 147783221Smarcel if (error) 147883221Smarcel return (error); 1479102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1480102872Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1481102872Siedowse (intptr_t)&bsd_flock)); 148283221Smarcel } 148383221Smarcel 1484283415Sdchagin fcntl_args.fd = args->fd; 1485283415Sdchagin fcntl_args.cmd = args->cmd; 1486283415Sdchagin fcntl_args.arg = args->arg; 1487283415Sdchagin return (fcntl_common(td, &fcntl_args)); 148883221Smarcel} 1489133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 149085022Smarcel 149185022Smarcelint 149285022Smarcellinux_chown(struct thread *td, struct linux_chown_args *args) 149385022Smarcel{ 1494102814Siedowse char *path; 1495102814Siedowse int error; 149685022Smarcel 1497102814Siedowse LCONVPATHEXIST(td, args->path, &path); 149885022Smarcel 149985022Smarcel#ifdef DEBUG 150085022Smarcel if (ldebug(chown)) 1501102814Siedowse printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid); 150285022Smarcel#endif 1503274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1504274476Skib args->gid, 0); 1505102814Siedowse LFREEPATH(path); 1506102814Siedowse return (error); 150785022Smarcel} 150885022Smarcel 150985022Smarcelint 1510177997Skiblinux_fchownat(struct thread *td, struct linux_fchownat_args *args) 1511177997Skib{ 1512177997Skib char *path; 1513227693Sed int error, dfd, flag; 1514177997Skib 1515177997Skib if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW) 1516177997Skib return (EINVAL); 1517177997Skib 1518177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 1519177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 1520177997Skib 1521177997Skib#ifdef DEBUG 1522177997Skib if (ldebug(fchownat)) 1523177997Skib printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid); 1524177997Skib#endif 1525177997Skib 1526227693Sed flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 : 1527177997Skib AT_SYMLINK_NOFOLLOW; 1528177997Skib error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid, 1529227693Sed flag); 1530177997Skib LFREEPATH(path); 1531177997Skib return (error); 1532177997Skib} 1533177997Skib 1534177997Skibint 153585022Smarcellinux_lchown(struct thread *td, struct linux_lchown_args *args) 153685022Smarcel{ 1537102814Siedowse char *path; 1538102814Siedowse int error; 153985022Smarcel 1540102814Siedowse LCONVPATHEXIST(td, args->path, &path); 154185022Smarcel 154285022Smarcel#ifdef DEBUG 154385022Smarcel if (ldebug(lchown)) 1544102814Siedowse printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid); 154585022Smarcel#endif 1546274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1547274476Skib args->gid, AT_SYMLINK_NOFOLLOW); 1548102814Siedowse LFREEPATH(path); 1549102814Siedowse return (error); 155085022Smarcel} 1551228957Sjhb 1552228957Sjhbstatic int 1553228957Sjhbconvert_fadvice(int advice) 1554228957Sjhb{ 1555228957Sjhb switch (advice) { 1556228957Sjhb case LINUX_POSIX_FADV_NORMAL: 1557228957Sjhb return (POSIX_FADV_NORMAL); 1558228957Sjhb case LINUX_POSIX_FADV_RANDOM: 1559228957Sjhb return (POSIX_FADV_RANDOM); 1560228957Sjhb case LINUX_POSIX_FADV_SEQUENTIAL: 1561228957Sjhb return (POSIX_FADV_SEQUENTIAL); 1562228957Sjhb case LINUX_POSIX_FADV_WILLNEED: 1563228957Sjhb return (POSIX_FADV_WILLNEED); 1564228957Sjhb case LINUX_POSIX_FADV_DONTNEED: 1565228957Sjhb return (POSIX_FADV_DONTNEED); 1566228957Sjhb case LINUX_POSIX_FADV_NOREUSE: 1567228957Sjhb return (POSIX_FADV_NOREUSE); 1568228957Sjhb default: 1569228957Sjhb return (-1); 1570228957Sjhb } 1571228957Sjhb} 1572228957Sjhb 1573228957Sjhbint 1574228957Sjhblinux_fadvise64(struct thread *td, struct linux_fadvise64_args *args) 1575228957Sjhb{ 1576228957Sjhb int advice; 1577228957Sjhb 1578228957Sjhb advice = convert_fadvice(args->advice); 1579228957Sjhb if (advice == -1) 1580228957Sjhb return (EINVAL); 1581228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1582228957Sjhb advice)); 1583228957Sjhb} 1584228957Sjhb 1585283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1586228957Sjhbint 1587228957Sjhblinux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args) 1588228957Sjhb{ 1589228957Sjhb int advice; 1590228957Sjhb 1591228957Sjhb advice = convert_fadvice(args->advice); 1592228957Sjhb if (advice == -1) 1593228957Sjhb return (EINVAL); 1594228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1595228957Sjhb advice)); 1596228957Sjhb} 1597283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1598234352Sjkim 1599234352Sjkimint 1600234352Sjkimlinux_pipe(struct thread *td, struct linux_pipe_args *args) 1601234352Sjkim{ 1602234352Sjkim int fildes[2]; 1603234352Sjkim int error; 1604234352Sjkim 1605234352Sjkim#ifdef DEBUG 1606234352Sjkim if (ldebug(pipe)) 1607234352Sjkim printf(ARGS(pipe, "*")); 1608234352Sjkim#endif 1609234352Sjkim 1610286021Sed error = kern_pipe(td, fildes, 0, NULL, NULL); 1611315538Strasz if (error != 0) 1612234352Sjkim return (error); 1613234352Sjkim 1614315538Strasz error = copyout(fildes, args->pipefds, sizeof(fildes)); 1615315538Strasz if (error != 0) { 1616315538Strasz (void)kern_close(td, fildes[0]); 1617315538Strasz (void)kern_close(td, fildes[1]); 1618315538Strasz } 1619315538Strasz 1620315538Strasz return (error); 1621234352Sjkim} 1622234352Sjkim 1623234352Sjkimint 1624234352Sjkimlinux_pipe2(struct thread *td, struct linux_pipe2_args *args) 1625234352Sjkim{ 1626234352Sjkim int fildes[2]; 1627234352Sjkim int error, flags; 1628234352Sjkim 1629234352Sjkim#ifdef DEBUG 1630234352Sjkim if (ldebug(pipe2)) 1631234352Sjkim printf(ARGS(pipe2, "*, %d"), args->flags); 1632234352Sjkim#endif 1633234352Sjkim 1634234352Sjkim if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0) 1635234352Sjkim return (EINVAL); 1636234352Sjkim 1637234352Sjkim flags = 0; 1638234352Sjkim if ((args->flags & LINUX_O_NONBLOCK) != 0) 1639234352Sjkim flags |= O_NONBLOCK; 1640234352Sjkim if ((args->flags & LINUX_O_CLOEXEC) != 0) 1641234352Sjkim flags |= O_CLOEXEC; 1642286021Sed error = kern_pipe(td, fildes, flags, NULL, NULL); 1643315538Strasz if (error != 0) 1644234352Sjkim return (error); 1645234352Sjkim 1646315538Strasz error = copyout(fildes, args->pipefds, sizeof(fildes)); 1647315538Strasz if (error != 0) { 1648315538Strasz (void)kern_close(td, fildes[0]); 1649315538Strasz (void)kern_close(td, fildes[1]); 1650315538Strasz } 1651315538Strasz 1652315538Strasz return (error); 1653234352Sjkim} 1654283399Sdchagin 1655283399Sdchaginint 1656283399Sdchaginlinux_dup3(struct thread *td, struct linux_dup3_args *args) 1657283399Sdchagin{ 1658283399Sdchagin int cmd; 1659283399Sdchagin intptr_t newfd; 1660283399Sdchagin 1661283399Sdchagin if (args->oldfd == args->newfd) 1662283399Sdchagin return (EINVAL); 1663283399Sdchagin if ((args->flags & ~LINUX_O_CLOEXEC) != 0) 1664283399Sdchagin return (EINVAL); 1665283399Sdchagin if (args->flags & LINUX_O_CLOEXEC) 1666283399Sdchagin cmd = F_DUP2FD_CLOEXEC; 1667283399Sdchagin else 1668283399Sdchagin cmd = F_DUP2FD; 1669283399Sdchagin 1670283399Sdchagin newfd = args->newfd; 1671283399Sdchagin return (kern_fcntl(td, args->oldfd, cmd, newfd)); 1672283399Sdchagin} 1673283465Sdchagin 1674283465Sdchaginint 1675283465Sdchaginlinux_fallocate(struct thread *td, struct linux_fallocate_args *args) 1676283465Sdchagin{ 1677283465Sdchagin 1678283465Sdchagin /* 1679283465Sdchagin * We emulate only posix_fallocate system call for which 1680283465Sdchagin * mode should be 0. 1681283465Sdchagin */ 1682283465Sdchagin if (args->mode != 0) 1683283465Sdchagin return (ENOSYS); 1684283465Sdchagin 1685283465Sdchagin return (kern_posix_fallocate(td, args->fd, args->offset, 1686283465Sdchagin args->len)); 1687283465Sdchagin} 1688