linux_file.c revision 330997
19313Ssos/*- 2330997Semaste * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3330997Semaste * 4230132Suqs * Copyright (c) 1994-1995 S��ren Schmidt 59313Ssos * All rights reserved. 69313Ssos * 79313Ssos * Redistribution and use in source and binary forms, with or without 89313Ssos * modification, are permitted provided that the following conditions 99313Ssos * are met: 109313Ssos * 1. Redistributions of source code must retain the above copyright 11330997Semaste * notice, this list of conditions and the following disclaimer. 129313Ssos * 2. Redistributions in binary form must reproduce the above copyright 139313Ssos * notice, this list of conditions and the following disclaimer in the 149313Ssos * documentation and/or other materials provided with the distribution. 159313Ssos * 16330997Semaste * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17330997Semaste * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18330997Semaste * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19330997Semaste * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20330997Semaste * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21330997Semaste * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22330997Semaste * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23330997Semaste * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24330997Semaste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25330997Semaste * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26330997Semaste * SUCH DAMAGE. 279313Ssos */ 289313Ssos 29116173Sobrien#include <sys/cdefs.h> 30116173Sobrien__FBSDID("$FreeBSD: stable/11/sys/compat/linux/linux_file.c 330997 2018-03-15 12:56:22Z emaste $"); 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 310315376Sdchagin/* 311315376Sdchagin * Linux l_dirent is bigger than FreeBSD dirent, thus the buffer size 312315376Sdchagin * passed to kern_getdirentries() must be smaller than the one passed 313315376Sdchagin * to linux_getdents() by certain factor. 314315376Sdchagin */ 315315376Sdchagin#define LINUX_RECLEN_RATIO(X) X * offsetof(struct dirent, d_name) / \ 316315376Sdchagin offsetof(struct l_dirent, d_name); 317315376Sdchagin#define LINUX_RECLEN64_RATIO(X) X * offsetof(struct dirent, d_name) / \ 318315376Sdchagin offsetof(struct l_dirent64, d_name); 319315376Sdchagin 320315376Sdchaginint 321315376Sdchaginlinux_getdents(struct thread *td, struct linux_getdents_args *args) 32214331Speter{ 323111798Sdes struct dirent *bdp; 32483221Smarcel caddr_t inp, buf; /* BSD-format */ 32583221Smarcel int len, reclen; /* BSD-format */ 32683221Smarcel caddr_t outp; /* Linux-format */ 327315376Sdchagin int resid, linuxreclen; /* Linux-format */ 328182892Srdivacky caddr_t lbuf; /* Linux-format */ 329315376Sdchagin long base; 330182892Srdivacky struct l_dirent *linux_dirent; 331315376Sdchagin int buflen, error; 332315376Sdchagin size_t retval; 3339313Ssos 334315376Sdchagin#ifdef DEBUG 335315376Sdchagin if (ldebug(getdents)) 336315376Sdchagin printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count); 337315376Sdchagin#endif 338315376Sdchagin buflen = LINUX_RECLEN_RATIO(args->count); 339315376Sdchagin buflen = min(buflen, MAXBSIZE); 340315376Sdchagin buf = malloc(buflen, M_TEMP, M_WAITOK); 341160276Sjhb 342315376Sdchagin error = kern_getdirentries(td, args->fd, buf, buflen, 343315376Sdchagin &base, NULL, UIO_SYSSPACE); 344315376Sdchagin if (error != 0) { 345315376Sdchagin error = linux_getdents_error(td, args->fd, error); 346315376Sdchagin goto out1; 34789306Salfred } 3489313Ssos 349315376Sdchagin lbuf = malloc(LINUX_RECLEN(LINUX_NAME_MAX), M_TEMP, M_WAITOK | M_ZERO); 350315376Sdchagin 351315376Sdchagin len = td->td_retval[0]; 352315376Sdchagin inp = buf; 353315376Sdchagin outp = (caddr_t)args->dent; 354315376Sdchagin resid = args->count; 355315376Sdchagin retval = 0; 356315376Sdchagin 357315376Sdchagin while (len > 0) { 358315376Sdchagin bdp = (struct dirent *) inp; 359315376Sdchagin reclen = bdp->d_reclen; 360315376Sdchagin linuxreclen = LINUX_RECLEN(bdp->d_namlen); 361315376Sdchagin /* 362315376Sdchagin * No more space in the user supplied dirent buffer. 363315376Sdchagin * Return EINVAL. 364315376Sdchagin */ 365315376Sdchagin if (resid < linuxreclen) { 366315376Sdchagin error = EINVAL; 367315376Sdchagin goto out; 368315376Sdchagin } 369315376Sdchagin 370315376Sdchagin linux_dirent = (struct l_dirent*)lbuf; 371315376Sdchagin linux_dirent->d_ino = bdp->d_fileno; 372315376Sdchagin linux_dirent->d_off = base + reclen; 373315376Sdchagin linux_dirent->d_reclen = linuxreclen; 374315376Sdchagin /* 375315376Sdchagin * Copy d_type to last byte of l_dirent buffer 376315376Sdchagin */ 377315376Sdchagin lbuf[linuxreclen - 1] = bdp->d_type; 378315376Sdchagin strlcpy(linux_dirent->d_name, bdp->d_name, 379315376Sdchagin linuxreclen - offsetof(struct l_dirent, d_name)-1); 380315376Sdchagin error = copyout(linux_dirent, outp, linuxreclen); 381315376Sdchagin if (error != 0) 382315376Sdchagin goto out; 383315376Sdchagin 384315376Sdchagin inp += reclen; 385315376Sdchagin base += reclen; 386315376Sdchagin len -= reclen; 387315376Sdchagin 388315376Sdchagin retval += linuxreclen; 389315376Sdchagin outp += linuxreclen; 390315376Sdchagin resid -= linuxreclen; 39189306Salfred } 392315376Sdchagin td->td_retval[0] = retval; 3939313Ssos 394315376Sdchaginout: 395320469Savg free(lbuf, M_TEMP); 396315376Sdchaginout1: 397320469Savg free(buf, M_TEMP); 398315376Sdchagin return (error); 399315376Sdchagin} 4009313Ssos 401315376Sdchaginint 402315376Sdchaginlinux_getdents64(struct thread *td, struct linux_getdents64_args *args) 403315376Sdchagin{ 404315376Sdchagin struct dirent *bdp; 405315376Sdchagin caddr_t inp, buf; /* BSD-format */ 406315376Sdchagin int len, reclen; /* BSD-format */ 407315376Sdchagin caddr_t outp; /* Linux-format */ 408315376Sdchagin int resid, linuxreclen; /* Linux-format */ 409315376Sdchagin caddr_t lbuf; /* Linux-format */ 410315376Sdchagin long base; 411315376Sdchagin struct l_dirent64 *linux_dirent64; 412315376Sdchagin int buflen, error; 413315376Sdchagin size_t retval; 414315376Sdchagin 415315376Sdchagin#ifdef DEBUG 416315376Sdchagin if (ldebug(getdents64)) 417315376Sdchagin uprintf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count); 418315376Sdchagin#endif 419315376Sdchagin buflen = LINUX_RECLEN64_RATIO(args->count); 42083221Smarcel buflen = min(buflen, MAXBSIZE); 421315376Sdchagin buf = malloc(buflen, M_TEMP, M_WAITOK); 42283221Smarcel 423315376Sdchagin error = kern_getdirentries(td, args->fd, buf, buflen, 424315376Sdchagin &base, NULL, UIO_SYSSPACE); 425315376Sdchagin if (error != 0) { 426315376Sdchagin error = linux_getdents_error(td, args->fd, error); 427315376Sdchagin goto out1; 428315376Sdchagin } 4299313Ssos 430315376Sdchagin lbuf = malloc(LINUX_RECLEN64(LINUX_NAME_MAX), M_TEMP, M_WAITOK | M_ZERO); 4319313Ssos 432315376Sdchagin len = td->td_retval[0]; 43383221Smarcel inp = buf; 43483221Smarcel outp = (caddr_t)args->dirent; 435315376Sdchagin resid = args->count; 436315376Sdchagin retval = 0; 4379313Ssos 43883221Smarcel while (len > 0) { 43983221Smarcel bdp = (struct dirent *) inp; 44083221Smarcel reclen = bdp->d_reclen; 441315376Sdchagin linuxreclen = LINUX_RECLEN64(bdp->d_namlen); 442315376Sdchagin /* 443315376Sdchagin * No more space in the user supplied dirent buffer. 444315376Sdchagin * Return EINVAL. 445315376Sdchagin */ 446315376Sdchagin if (resid < linuxreclen) { 447315376Sdchagin error = EINVAL; 44883221Smarcel goto out; 44983221Smarcel } 45083221Smarcel 451315376Sdchagin linux_dirent64 = (struct l_dirent64*)lbuf; 452315376Sdchagin linux_dirent64->d_ino = bdp->d_fileno; 453315376Sdchagin linux_dirent64->d_off = base + reclen; 454315376Sdchagin linux_dirent64->d_reclen = linuxreclen; 455315376Sdchagin linux_dirent64->d_type = bdp->d_type; 456315376Sdchagin strlcpy(linux_dirent64->d_name, bdp->d_name, 457315376Sdchagin linuxreclen - offsetof(struct l_dirent64, d_name)); 458315376Sdchagin error = copyout(linux_dirent64, outp, linuxreclen); 459315376Sdchagin if (error != 0) 46083221Smarcel goto out; 46183221Smarcel 46283221Smarcel inp += reclen; 463315376Sdchagin base += reclen; 464315376Sdchagin len -= reclen; 46583221Smarcel 466315376Sdchagin retval += linuxreclen; 46783221Smarcel outp += linuxreclen; 46883221Smarcel resid -= linuxreclen; 46910355Sswallace } 470315376Sdchagin td->td_retval[0] = retval; 4719313Ssos 4729313Ssosout: 473315376Sdchagin free(lbuf, M_TEMP); 474315376Sdchaginout1: 475315376Sdchagin free(buf, M_TEMP); 47683221Smarcel return (error); 4779313Ssos} 47814331Speter 479315376Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 48083221Smarcelint 481315376Sdchaginlinux_readdir(struct thread *td, struct linux_readdir_args *args) 48283221Smarcel{ 483315376Sdchagin struct dirent *bdp; 484315376Sdchagin caddr_t buf; /* BSD-format */ 485315376Sdchagin int linuxreclen; /* Linux-format */ 486315376Sdchagin caddr_t lbuf; /* Linux-format */ 487315376Sdchagin long base; 488315376Sdchagin struct l_dirent *linux_dirent; 489315376Sdchagin int buflen, error; 49083221Smarcel 49183221Smarcel#ifdef DEBUG 492315376Sdchagin if (ldebug(readdir)) 493315376Sdchagin printf(ARGS(readdir, "%d, *"), args->fd); 49483221Smarcel#endif 495315376Sdchagin buflen = LINUX_RECLEN(LINUX_NAME_MAX); 496315376Sdchagin buflen = LINUX_RECLEN_RATIO(buflen); 497315376Sdchagin buf = malloc(buflen, M_TEMP, M_WAITOK); 49883221Smarcel 499315376Sdchagin error = kern_getdirentries(td, args->fd, buf, buflen, 500315376Sdchagin &base, NULL, UIO_SYSSPACE); 501315376Sdchagin if (error != 0) { 502315376Sdchagin error = linux_getdents_error(td, args->fd, error); 503315376Sdchagin goto out; 504315376Sdchagin } 505315376Sdchagin if (td->td_retval[0] == 0) 506315376Sdchagin goto out; 50783221Smarcel 508315376Sdchagin lbuf = malloc(LINUX_RECLEN(LINUX_NAME_MAX), M_TEMP, M_WAITOK | M_ZERO); 50983221Smarcel 510315376Sdchagin bdp = (struct dirent *) buf; 511315376Sdchagin linuxreclen = LINUX_RECLEN(bdp->d_namlen); 51283221Smarcel 513315376Sdchagin linux_dirent = (struct l_dirent*)lbuf; 514315376Sdchagin linux_dirent->d_ino = bdp->d_fileno; 515315376Sdchagin linux_dirent->d_off = linuxreclen; 516315376Sdchagin linux_dirent->d_reclen = bdp->d_namlen; 517315376Sdchagin strlcpy(linux_dirent->d_name, bdp->d_name, 518315376Sdchagin linuxreclen - offsetof(struct l_dirent, d_name)); 519315376Sdchagin error = copyout(linux_dirent, args->dent, linuxreclen); 520315376Sdchagin if (error == 0) 521315376Sdchagin td->td_retval[0] = linuxreclen; 522315376Sdchagin 523320469Savg free(lbuf, M_TEMP); 524315376Sdchaginout: 525320469Savg free(buf, M_TEMP); 526315376Sdchagin return (error); 52783221Smarcel} 528315376Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 52983221Smarcel 530315376Sdchagin 53114331Speter/* 53214331Speter * These exist mainly for hooks for doing /compat/linux translation. 53314331Speter */ 53414331Speter 53514331Speterint 53683366Sjulianlinux_access(struct thread *td, struct linux_access_args *args) 53714331Speter{ 538102814Siedowse char *path; 539102814Siedowse int error; 54014331Speter 541162585Snetchild /* linux convention */ 542227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 543162585Snetchild return (EINVAL); 544162585Snetchild 545102814Siedowse LCONVPATHEXIST(td, args->path, &path); 54614331Speter 54714331Speter#ifdef DEBUG 54872543Sjlemon if (ldebug(access)) 549227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 55014331Speter#endif 551274476Skib error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0, 552274476Skib args->amode); 553102814Siedowse LFREEPATH(path); 554162585Snetchild 555102814Siedowse return (error); 55614331Speter} 55714331Speter 55814331Speterint 559177997Skiblinux_faccessat(struct thread *td, struct linux_faccessat_args *args) 560177997Skib{ 561177997Skib char *path; 562283428Sdchagin int error, dfd; 563177997Skib 564177997Skib /* linux convention */ 565227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 566177997Skib return (EINVAL); 567177997Skib 568177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 569177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 570177997Skib 571177997Skib#ifdef DEBUG 572177997Skib if (ldebug(access)) 573227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 574177997Skib#endif 575177997Skib 576283428Sdchagin error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode); 577177997Skib LFREEPATH(path); 578177997Skib 579177997Skib return (error); 580177997Skib} 581177997Skib 582177997Skibint 58383366Sjulianlinux_unlink(struct thread *td, struct linux_unlink_args *args) 58414331Speter{ 585102814Siedowse char *path; 586102814Siedowse int error; 587162201Snetchild struct stat st; 58814331Speter 589102814Siedowse LCONVPATHEXIST(td, args->path, &path); 59014331Speter 59114331Speter#ifdef DEBUG 59272543Sjlemon if (ldebug(unlink)) 593102814Siedowse printf(ARGS(unlink, "%s"), path); 59414331Speter#endif 59514331Speter 596274476Skib error = kern_unlinkat(td, AT_FDCWD, path, UIO_SYSSPACE, 0); 597274476Skib if (error == EPERM) { 598162201Snetchild /* Introduce POSIX noncompliant behaviour of Linux */ 599274476Skib if (kern_statat(td, 0, AT_FDCWD, path, UIO_SYSSPACE, &st, 600274476Skib NULL) == 0) { 601162201Snetchild if (S_ISDIR(st.st_mode)) 602162201Snetchild error = EISDIR; 603274476Skib } 604274476Skib } 605102814Siedowse LFREEPATH(path); 606102814Siedowse return (error); 60714331Speter} 60814331Speter 60914331Speterint 610177997Skiblinux_unlinkat(struct thread *td, struct linux_unlinkat_args *args) 611177997Skib{ 612177997Skib char *path; 613177997Skib int error, dfd; 614177997Skib struct stat st; 615177997Skib 616177997Skib if (args->flag & ~LINUX_AT_REMOVEDIR) 617177997Skib return (EINVAL); 618177997Skib 619177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 620177997Skib LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); 621177997Skib 622177997Skib#ifdef DEBUG 623177997Skib if (ldebug(unlinkat)) 624177997Skib printf(ARGS(unlinkat, "%s"), path); 625177997Skib#endif 626177997Skib 627177997Skib if (args->flag & LINUX_AT_REMOVEDIR) 628177997Skib error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE); 629177997Skib else 630202113Smckusick error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0); 631177997Skib if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) { 632177997Skib /* Introduce POSIX noncompliant behaviour of Linux */ 633177997Skib if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path, 634274476Skib UIO_SYSSPACE, &st, NULL) == 0 && S_ISDIR(st.st_mode)) 635177997Skib error = EISDIR; 636177997Skib } 637177997Skib LFREEPATH(path); 638177997Skib return (error); 639177997Skib} 640177997Skibint 64183366Sjulianlinux_chdir(struct thread *td, struct linux_chdir_args *args) 64214331Speter{ 643102814Siedowse char *path; 644102814Siedowse int error; 64514331Speter 646102814Siedowse LCONVPATHEXIST(td, args->path, &path); 64714331Speter 64814331Speter#ifdef DEBUG 64972543Sjlemon if (ldebug(chdir)) 650102814Siedowse printf(ARGS(chdir, "%s"), path); 65114331Speter#endif 652102814Siedowse error = kern_chdir(td, path, UIO_SYSSPACE); 653102814Siedowse LFREEPATH(path); 654102814Siedowse return (error); 65514331Speter} 65614331Speter 65714331Speterint 65883366Sjulianlinux_chmod(struct thread *td, struct linux_chmod_args *args) 65914331Speter{ 660102814Siedowse char *path; 661102814Siedowse int error; 66214331Speter 663102814Siedowse LCONVPATHEXIST(td, args->path, &path); 66414331Speter 66514331Speter#ifdef DEBUG 66672543Sjlemon if (ldebug(chmod)) 667102814Siedowse printf(ARGS(chmod, "%s, %d"), path, args->mode); 66814331Speter#endif 669274476Skib error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE, 670274476Skib args->mode, 0); 671102814Siedowse LFREEPATH(path); 672102814Siedowse return (error); 67314331Speter} 67414331Speter 67514331Speterint 676177997Skiblinux_fchmodat(struct thread *td, struct linux_fchmodat_args *args) 677177997Skib{ 678177997Skib char *path; 679177997Skib int error, dfd; 680177997Skib 681177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 682177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 683177997Skib 684177997Skib#ifdef DEBUG 685177997Skib if (ldebug(fchmodat)) 686177997Skib printf(ARGS(fchmodat, "%s, %d"), path, args->mode); 687177997Skib#endif 688177997Skib 689177997Skib error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0); 690177997Skib LFREEPATH(path); 691177997Skib return (error); 692177997Skib} 693177997Skib 694177997Skibint 69583366Sjulianlinux_mkdir(struct thread *td, struct linux_mkdir_args *args) 69614331Speter{ 697102814Siedowse char *path; 698102814Siedowse int error; 69914331Speter 700102814Siedowse LCONVPATHCREAT(td, args->path, &path); 70114331Speter 70214331Speter#ifdef DEBUG 70372543Sjlemon if (ldebug(mkdir)) 704102814Siedowse printf(ARGS(mkdir, "%s, %d"), path, args->mode); 70514331Speter#endif 706274476Skib error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, args->mode); 707102814Siedowse LFREEPATH(path); 708102814Siedowse return (error); 70914331Speter} 71014331Speter 71114331Speterint 712177997Skiblinux_mkdirat(struct thread *td, struct linux_mkdirat_args *args) 713177997Skib{ 714177997Skib char *path; 715177997Skib int error, dfd; 716177997Skib 717177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 718177997Skib LCONVPATHCREAT_AT(td, args->pathname, &path, dfd); 719177997Skib 720177997Skib#ifdef DEBUG 721177997Skib if (ldebug(mkdirat)) 722177997Skib printf(ARGS(mkdirat, "%s, %d"), path, args->mode); 723177997Skib#endif 724177997Skib error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode); 725177997Skib LFREEPATH(path); 726177997Skib return (error); 727177997Skib} 728177997Skib 729177997Skibint 73083366Sjulianlinux_rmdir(struct thread *td, struct linux_rmdir_args *args) 73114331Speter{ 732102814Siedowse char *path; 733102814Siedowse int error; 73414331Speter 735102814Siedowse LCONVPATHEXIST(td, args->path, &path); 73614331Speter 73714331Speter#ifdef DEBUG 73872543Sjlemon if (ldebug(rmdir)) 739102814Siedowse printf(ARGS(rmdir, "%s"), path); 74014331Speter#endif 741274476Skib error = kern_rmdirat(td, AT_FDCWD, path, UIO_SYSSPACE); 742102814Siedowse LFREEPATH(path); 743102814Siedowse return (error); 74414331Speter} 74514331Speter 74614331Speterint 74783366Sjulianlinux_rename(struct thread *td, struct linux_rename_args *args) 74814331Speter{ 749102814Siedowse char *from, *to; 750102814Siedowse int error; 75114331Speter 752102814Siedowse LCONVPATHEXIST(td, args->from, &from); 753102814Siedowse /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 754177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 755102814Siedowse if (to == NULL) { 756102814Siedowse LFREEPATH(from); 757102814Siedowse return (error); 758102814Siedowse } 75914331Speter 76014331Speter#ifdef DEBUG 76172543Sjlemon if (ldebug(rename)) 762102814Siedowse printf(ARGS(rename, "%s, %s"), from, to); 76314331Speter#endif 764274476Skib error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE); 765102814Siedowse LFREEPATH(from); 766102814Siedowse LFREEPATH(to); 767102814Siedowse return (error); 76814331Speter} 76914331Speter 77014331Speterint 771177997Skiblinux_renameat(struct thread *td, struct linux_renameat_args *args) 772177997Skib{ 773177997Skib char *from, *to; 774177997Skib int error, olddfd, newdfd; 775177997Skib 776177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 777177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 778177997Skib LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd); 779177997Skib /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 780177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 781177997Skib if (to == NULL) { 782177997Skib LFREEPATH(from); 783177997Skib return (error); 784177997Skib } 785177997Skib 786177997Skib#ifdef DEBUG 787177997Skib if (ldebug(renameat)) 788177997Skib printf(ARGS(renameat, "%s, %s"), from, to); 789177997Skib#endif 790177997Skib error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE); 791177997Skib LFREEPATH(from); 792177997Skib LFREEPATH(to); 793177997Skib return (error); 794177997Skib} 795177997Skib 796177997Skibint 79783366Sjulianlinux_symlink(struct thread *td, struct linux_symlink_args *args) 79814331Speter{ 799102814Siedowse char *path, *to; 800102814Siedowse int error; 80114331Speter 802102814Siedowse LCONVPATHEXIST(td, args->path, &path); 803102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 804177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 805102814Siedowse if (to == NULL) { 806102814Siedowse LFREEPATH(path); 807102814Siedowse return (error); 808102814Siedowse } 80914331Speter 81014331Speter#ifdef DEBUG 81172543Sjlemon if (ldebug(symlink)) 812102814Siedowse printf(ARGS(symlink, "%s, %s"), path, to); 81314331Speter#endif 814274476Skib error = kern_symlinkat(td, path, AT_FDCWD, to, UIO_SYSSPACE); 815102814Siedowse LFREEPATH(path); 816102814Siedowse LFREEPATH(to); 817102814Siedowse return (error); 81814331Speter} 81914331Speter 82014331Speterint 821177997Skiblinux_symlinkat(struct thread *td, struct linux_symlinkat_args *args) 822177997Skib{ 823177997Skib char *path, *to; 824177997Skib int error, dfd; 825177997Skib 826177997Skib dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 827319573Sdchagin LCONVPATHEXIST(td, args->oldname, &path); 828177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 829177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd); 830177997Skib if (to == NULL) { 831177997Skib LFREEPATH(path); 832177997Skib return (error); 833177997Skib } 834177997Skib 835177997Skib#ifdef DEBUG 836177997Skib if (ldebug(symlinkat)) 837177997Skib printf(ARGS(symlinkat, "%s, %s"), path, to); 838177997Skib#endif 839177997Skib 840177997Skib error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE); 841177997Skib LFREEPATH(path); 842177997Skib LFREEPATH(to); 843177997Skib return (error); 844177997Skib} 845177997Skib 846177997Skibint 84783366Sjulianlinux_readlink(struct thread *td, struct linux_readlink_args *args) 84814331Speter{ 849102814Siedowse char *name; 850102814Siedowse int error; 85114331Speter 852102814Siedowse LCONVPATHEXIST(td, args->name, &name); 85314331Speter 85414331Speter#ifdef DEBUG 85572543Sjlemon if (ldebug(readlink)) 856102814Siedowse printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf, 857102814Siedowse args->count); 85814331Speter#endif 859274476Skib error = kern_readlinkat(td, AT_FDCWD, name, UIO_SYSSPACE, 860274476Skib args->buf, UIO_USERSPACE, args->count); 861102814Siedowse LFREEPATH(name); 862102814Siedowse return (error); 86314331Speter} 86414331Speter 86514331Speterint 866177997Skiblinux_readlinkat(struct thread *td, struct linux_readlinkat_args *args) 867177997Skib{ 868177997Skib char *name; 869177997Skib int error, dfd; 870177997Skib 871177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 872177997Skib LCONVPATHEXIST_AT(td, args->path, &name, dfd); 873177997Skib 874177997Skib#ifdef DEBUG 875177997Skib if (ldebug(readlinkat)) 876177997Skib printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf, 877177997Skib args->bufsiz); 878177997Skib#endif 879177997Skib 880177997Skib error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf, 881177997Skib UIO_USERSPACE, args->bufsiz); 882177997Skib LFREEPATH(name); 883177997Skib return (error); 884177997Skib} 885178439Srdivacky 886177997Skibint 88783366Sjulianlinux_truncate(struct thread *td, struct linux_truncate_args *args) 88814331Speter{ 889102814Siedowse char *path; 890102814Siedowse int error; 89114331Speter 892102814Siedowse LCONVPATHEXIST(td, args->path, &path); 89314331Speter 89414331Speter#ifdef DEBUG 89572543Sjlemon if (ldebug(truncate)) 896102814Siedowse printf(ARGS(truncate, "%s, %ld"), path, (long)args->length); 89714331Speter#endif 89814331Speter 899102814Siedowse error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 900102814Siedowse LFREEPATH(path); 901102814Siedowse return (error); 90214331Speter} 90314331Speter 904283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 90549662Smarcelint 906178439Srdivackylinux_truncate64(struct thread *td, struct linux_truncate64_args *args) 907178439Srdivacky{ 908178439Srdivacky char *path; 909178439Srdivacky int error; 910178439Srdivacky 911178439Srdivacky LCONVPATHEXIST(td, args->path, &path); 912178439Srdivacky 913178439Srdivacky#ifdef DEBUG 914178439Srdivacky if (ldebug(truncate64)) 915178439Srdivacky printf(ARGS(truncate64, "%s, %jd"), path, args->length); 916178439Srdivacky#endif 917178439Srdivacky 918178439Srdivacky error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 919178439Srdivacky LFREEPATH(path); 920178439Srdivacky return (error); 921178439Srdivacky} 922283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 923283415Sdchagin 924178439Srdivackyint 925156842Snetchildlinux_ftruncate(struct thread *td, struct linux_ftruncate_args *args) 926156842Snetchild{ 927300411Sdchagin 928315548Strasz return (kern_ftruncate(td, args->fd, args->length)); 929156842Snetchild} 930156842Snetchild 931156842Snetchildint 93283366Sjulianlinux_link(struct thread *td, struct linux_link_args *args) 93349662Smarcel{ 934102814Siedowse char *path, *to; 935102814Siedowse int error; 93649662Smarcel 937102814Siedowse LCONVPATHEXIST(td, args->path, &path); 938102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 939177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 940102814Siedowse if (to == NULL) { 941102814Siedowse LFREEPATH(path); 942102814Siedowse return (error); 943102814Siedowse } 94449662Smarcel 94549662Smarcel#ifdef DEBUG 94672543Sjlemon if (ldebug(link)) 947102814Siedowse printf(ARGS(link, "%s, %s"), path, to); 94849662Smarcel#endif 949274476Skib error = kern_linkat(td, AT_FDCWD, AT_FDCWD, path, to, UIO_SYSSPACE, 950274476Skib FOLLOW); 951102814Siedowse LFREEPATH(path); 952102814Siedowse LFREEPATH(to); 953102814Siedowse return (error); 95449662Smarcel} 95549788Smarcel 95653713Smarcelint 957177997Skiblinux_linkat(struct thread *td, struct linux_linkat_args *args) 958177997Skib{ 959177997Skib char *path, *to; 960227693Sed int error, olddfd, newdfd, follow; 961177997Skib 962227693Sed if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW) 963177997Skib return (EINVAL); 964177997Skib 965177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 966177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 967177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd); 968177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 969177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 970177997Skib if (to == NULL) { 971177997Skib LFREEPATH(path); 972177997Skib return (error); 973177997Skib } 974177997Skib 975177997Skib#ifdef DEBUG 976177997Skib if (ldebug(linkat)) 977177997Skib printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path, 978227693Sed args->newdfd, to, args->flag); 979177997Skib#endif 980177997Skib 981227693Sed follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW : 982227693Sed FOLLOW; 983227693Sed error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow); 984177997Skib LFREEPATH(path); 985177997Skib LFREEPATH(to); 986177997Skib return (error); 987177997Skib} 988177997Skib 989177997Skibint 99083366Sjulianlinux_fdatasync(td, uap) 99183366Sjulian struct thread *td; 99253713Smarcel struct linux_fdatasync_args *uap; 99353713Smarcel{ 99453713Smarcel 995304987Skib return (kern_fsync(td, uap->fd, false)); 99653713Smarcel} 99763285Smarcel 99863285Smarcelint 999315553Straszlinux_pread(struct thread *td, struct linux_pread_args *uap) 100063285Smarcel{ 1001255219Spjd cap_rights_t rights; 1002162585Snetchild struct vnode *vp; 1003162585Snetchild int error; 100463285Smarcel 1005315553Strasz error = kern_pread(td, uap->fd, uap->buf, uap->nbyte, uap->offset); 1006162585Snetchild if (error == 0) { 1007247602Spjd /* This seems to violate POSIX but linux does it */ 1008255219Spjd error = fgetvp(td, uap->fd, 1009255219Spjd cap_rights_init(&rights, CAP_PREAD), &vp); 1010255219Spjd if (error != 0) 1011247602Spjd return (error); 1012162585Snetchild if (vp->v_type == VDIR) { 1013247602Spjd vrele(vp); 1014162585Snetchild return (EISDIR); 1015162585Snetchild } 1016162585Snetchild vrele(vp); 1017162585Snetchild } 1018162585Snetchild return (error); 101963285Smarcel} 102063285Smarcel 102163285Smarcelint 1022315553Straszlinux_pwrite(struct thread *td, struct linux_pwrite_args *uap) 102363285Smarcel{ 102463285Smarcel 1025315553Strasz return (kern_pwrite(td, uap->fd, uap->buf, uap->nbyte, uap->offset)); 102663285Smarcel} 102772538Sjlemon 102872538Sjlemonint 1029314909Smmokhilinux_preadv(struct thread *td, struct linux_preadv_args *uap) 1030314909Smmokhi{ 1031314909Smmokhi struct uio *auio; 1032314909Smmokhi int error; 1033314909Smmokhi off_t offset; 1034314909Smmokhi 1035314909Smmokhi /* 1036314909Smmokhi * According http://man7.org/linux/man-pages/man2/preadv.2.html#NOTES 1037314909Smmokhi * pos_l and pos_h, respectively, contain the 1038314909Smmokhi * low order and high order 32 bits of offset. 1039314909Smmokhi */ 1040314909Smmokhi offset = (((off_t)uap->pos_h << (sizeof(offset) * 4)) << 1041314909Smmokhi (sizeof(offset) * 4)) | uap->pos_l; 1042314909Smmokhi if (offset < 0) 1043314909Smmokhi return (EINVAL); 1044314909Smmokhi#ifdef COMPAT_LINUX32 1045314909Smmokhi error = linux32_copyinuio(PTRIN(uap->vec), uap->vlen, &auio); 1046314909Smmokhi#else 1047314909Smmokhi error = copyinuio(uap->vec, uap->vlen, &auio); 1048314909Smmokhi#endif 1049314909Smmokhi if (error != 0) 1050314909Smmokhi return (error); 1051314909Smmokhi error = kern_preadv(td, uap->fd, auio, offset); 1052314909Smmokhi free(auio, M_IOV); 1053314909Smmokhi return (error); 1054314909Smmokhi} 1055314909Smmokhi 1056314909Smmokhiint 1057314909Smmokhilinux_pwritev(struct thread *td, struct linux_pwritev_args *uap) 1058314909Smmokhi{ 1059314909Smmokhi struct uio *auio; 1060314909Smmokhi int error; 1061314909Smmokhi off_t offset; 1062314909Smmokhi 1063314909Smmokhi /* 1064314909Smmokhi * According http://man7.org/linux/man-pages/man2/pwritev.2.html#NOTES 1065314909Smmokhi * pos_l and pos_h, respectively, contain the 1066314909Smmokhi * low order and high order 32 bits of offset. 1067314909Smmokhi */ 1068314909Smmokhi offset = (((off_t)uap->pos_h << (sizeof(offset) * 4)) << 1069314909Smmokhi (sizeof(offset) * 4)) | uap->pos_l; 1070314909Smmokhi if (offset < 0) 1071314909Smmokhi return (EINVAL); 1072314909Smmokhi#ifdef COMPAT_LINUX32 1073314909Smmokhi error = linux32_copyinuio(PTRIN(uap->vec), uap->vlen, &auio); 1074314909Smmokhi#else 1075314909Smmokhi error = copyinuio(uap->vec, uap->vlen, &auio); 1076314909Smmokhi#endif 1077314909Smmokhi if (error != 0) 1078314909Smmokhi return (error); 1079314909Smmokhi error = kern_pwritev(td, uap->fd, auio, offset); 1080314909Smmokhi free(auio, M_IOV); 1081314909Smmokhi return (error); 1082314909Smmokhi} 1083314909Smmokhi 1084314909Smmokhiint 108583366Sjulianlinux_mount(struct thread *td, struct linux_mount_args *args) 108672538Sjlemon{ 1087111798Sdes char fstypename[MFSNAMELEN]; 1088111798Sdes char mntonname[MNAMELEN], mntfromname[MNAMELEN]; 108973286Sadrian int error; 109073286Sadrian int fsflags; 109172538Sjlemon 1092111798Sdes error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1, 109373286Sadrian NULL); 109472538Sjlemon if (error) 1095111798Sdes return (error); 1096127057Stjr error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL); 109772538Sjlemon if (error) 1098111798Sdes return (error); 1099127057Stjr error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL); 110072538Sjlemon if (error) 1101111798Sdes return (error); 110272538Sjlemon 110372538Sjlemon#ifdef DEBUG 110472538Sjlemon if (ldebug(mount)) 110572538Sjlemon printf(ARGS(mount, "%s, %s, %s"), 110672538Sjlemon fstypename, mntfromname, mntonname); 110772538Sjlemon#endif 110872538Sjlemon 110972538Sjlemon if (strcmp(fstypename, "ext2") == 0) { 1110127059Stjr strcpy(fstypename, "ext2fs"); 111172538Sjlemon } else if (strcmp(fstypename, "proc") == 0) { 1112127059Stjr strcpy(fstypename, "linprocfs"); 1113190445Sambrisko } else if (strcmp(fstypename, "vfat") == 0) { 1114190445Sambrisko strcpy(fstypename, "msdosfs"); 111572538Sjlemon } 111672538Sjlemon 111773286Sadrian fsflags = 0; 111872538Sjlemon 111972538Sjlemon if ((args->rwflag & 0xffff0000) == 0xc0ed0000) { 112072538Sjlemon /* 112172538Sjlemon * Linux SYNC flag is not included; the closest equivalent 112272538Sjlemon * FreeBSD has is !ASYNC, which is our default. 112372538Sjlemon */ 112472538Sjlemon if (args->rwflag & LINUX_MS_RDONLY) 1125111798Sdes fsflags |= MNT_RDONLY; 112672538Sjlemon if (args->rwflag & LINUX_MS_NOSUID) 1127111798Sdes fsflags |= MNT_NOSUID; 112872538Sjlemon if (args->rwflag & LINUX_MS_NOEXEC) 1129111798Sdes fsflags |= MNT_NOEXEC; 113072538Sjlemon if (args->rwflag & LINUX_MS_REMOUNT) 1131111798Sdes fsflags |= MNT_UPDATE; 113272538Sjlemon } 113372538Sjlemon 1134281689Strasz error = kernel_vmount(fsflags, 1135281689Strasz "fstype", fstypename, 1136281689Strasz "fspath", mntonname, 1137281689Strasz "from", mntfromname, 1138281689Strasz NULL); 1139127059Stjr return (error); 114072538Sjlemon} 114172538Sjlemon 1142283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 114372538Sjlemonint 114483366Sjulianlinux_oldumount(struct thread *td, struct linux_oldumount_args *args) 114572538Sjlemon{ 114683221Smarcel struct linux_umount_args args2; 114772538Sjlemon 114872538Sjlemon args2.path = args->path; 114972538Sjlemon args2.flags = 0; 115083366Sjulian return (linux_umount(td, &args2)); 115172538Sjlemon} 1152283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 115372538Sjlemon 115472538Sjlemonint 115583366Sjulianlinux_umount(struct thread *td, struct linux_umount_args *args) 115672538Sjlemon{ 115772538Sjlemon struct unmount_args bsd; 115872538Sjlemon 115972538Sjlemon bsd.path = args->path; 116072538Sjlemon bsd.flags = args->flags; /* XXX correct? */ 1161225617Skmacy return (sys_unmount(td, &bsd)); 116272538Sjlemon} 116383221Smarcel 116483221Smarcel/* 116583221Smarcel * fcntl family of syscalls 116683221Smarcel */ 116783221Smarcel 116883221Smarcelstruct l_flock { 116983221Smarcel l_short l_type; 117083221Smarcel l_short l_whence; 117183221Smarcel l_off_t l_start; 117283221Smarcel l_off_t l_len; 117383221Smarcel l_pid_t l_pid; 1174133816Stjr} 1175140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1176133816Stjr__packed 1177133816Stjr#endif 1178133816Stjr; 117983221Smarcel 118083221Smarcelstatic void 118183221Smarcellinux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock) 118283221Smarcel{ 118383221Smarcel switch (linux_flock->l_type) { 118483221Smarcel case LINUX_F_RDLCK: 118583221Smarcel bsd_flock->l_type = F_RDLCK; 118683221Smarcel break; 118783221Smarcel case LINUX_F_WRLCK: 118883221Smarcel bsd_flock->l_type = F_WRLCK; 118983221Smarcel break; 119083221Smarcel case LINUX_F_UNLCK: 119183221Smarcel bsd_flock->l_type = F_UNLCK; 119283221Smarcel break; 119383221Smarcel default: 119483221Smarcel bsd_flock->l_type = -1; 119583221Smarcel break; 119683221Smarcel } 119783221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 119883221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 119983221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 120083221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1201177633Sdfr bsd_flock->l_sysid = 0; 120283221Smarcel} 120383221Smarcel 120483221Smarcelstatic void 120583221Smarcelbsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock) 120683221Smarcel{ 120783221Smarcel switch (bsd_flock->l_type) { 120883221Smarcel case F_RDLCK: 120983221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 121083221Smarcel break; 121183221Smarcel case F_WRLCK: 121283221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 121383221Smarcel break; 121483221Smarcel case F_UNLCK: 121583221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 121683221Smarcel break; 121783221Smarcel } 121883221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 121983221Smarcel linux_flock->l_start = (l_off_t)bsd_flock->l_start; 122083221Smarcel linux_flock->l_len = (l_off_t)bsd_flock->l_len; 122183221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 122283221Smarcel} 122383221Smarcel 1224140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 122583221Smarcelstruct l_flock64 { 122683221Smarcel l_short l_type; 122783221Smarcel l_short l_whence; 122883221Smarcel l_loff_t l_start; 122983221Smarcel l_loff_t l_len; 123083221Smarcel l_pid_t l_pid; 1231133816Stjr} 1232140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1233133816Stjr__packed 1234133816Stjr#endif 1235133816Stjr; 123683221Smarcel 123783221Smarcelstatic void 123883221Smarcellinux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock) 123983221Smarcel{ 124083221Smarcel switch (linux_flock->l_type) { 124183221Smarcel case LINUX_F_RDLCK: 124283221Smarcel bsd_flock->l_type = F_RDLCK; 124383221Smarcel break; 124483221Smarcel case LINUX_F_WRLCK: 124583221Smarcel bsd_flock->l_type = F_WRLCK; 124683221Smarcel break; 124783221Smarcel case LINUX_F_UNLCK: 124883221Smarcel bsd_flock->l_type = F_UNLCK; 124983221Smarcel break; 125083221Smarcel default: 125183221Smarcel bsd_flock->l_type = -1; 125283221Smarcel break; 125383221Smarcel } 125483221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 125583221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 125683221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 125783221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1258177633Sdfr bsd_flock->l_sysid = 0; 125983221Smarcel} 126083221Smarcel 126183221Smarcelstatic void 126283221Smarcelbsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock) 126383221Smarcel{ 126483221Smarcel switch (bsd_flock->l_type) { 126583221Smarcel case F_RDLCK: 126683221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 126783221Smarcel break; 126883221Smarcel case F_WRLCK: 126983221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 127083221Smarcel break; 127183221Smarcel case F_UNLCK: 127283221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 127383221Smarcel break; 127483221Smarcel } 127583221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 127683221Smarcel linux_flock->l_start = (l_loff_t)bsd_flock->l_start; 127783221Smarcel linux_flock->l_len = (l_loff_t)bsd_flock->l_len; 127883221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 127983221Smarcel} 1280133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 128183221Smarcel 128283221Smarcelstatic int 1283283415Sdchaginfcntl_common(struct thread *td, struct linux_fcntl_args *args) 128483221Smarcel{ 1285107680Siedowse struct l_flock linux_flock; 1286107680Siedowse struct flock bsd_flock; 1287255219Spjd cap_rights_t rights; 128883221Smarcel struct file *fp; 1289102872Siedowse long arg; 129083221Smarcel int error, result; 129183221Smarcel 129283221Smarcel switch (args->cmd) { 129383221Smarcel case LINUX_F_DUPFD: 1294102872Siedowse return (kern_fcntl(td, args->fd, F_DUPFD, args->arg)); 129583221Smarcel 129683221Smarcel case LINUX_F_GETFD: 1297102872Siedowse return (kern_fcntl(td, args->fd, F_GETFD, 0)); 129883221Smarcel 129983221Smarcel case LINUX_F_SETFD: 1300102872Siedowse return (kern_fcntl(td, args->fd, F_SETFD, args->arg)); 130183221Smarcel 130283221Smarcel case LINUX_F_GETFL: 1303102872Siedowse error = kern_fcntl(td, args->fd, F_GETFL, 0); 130483366Sjulian result = td->td_retval[0]; 130583366Sjulian td->td_retval[0] = 0; 130683221Smarcel if (result & O_RDONLY) 130783366Sjulian td->td_retval[0] |= LINUX_O_RDONLY; 130883221Smarcel if (result & O_WRONLY) 130983366Sjulian td->td_retval[0] |= LINUX_O_WRONLY; 131083221Smarcel if (result & O_RDWR) 131183366Sjulian td->td_retval[0] |= LINUX_O_RDWR; 131283221Smarcel if (result & O_NDELAY) 131383366Sjulian td->td_retval[0] |= LINUX_O_NONBLOCK; 131483221Smarcel if (result & O_APPEND) 131583366Sjulian td->td_retval[0] |= LINUX_O_APPEND; 131683221Smarcel if (result & O_FSYNC) 131783366Sjulian td->td_retval[0] |= LINUX_O_SYNC; 131883221Smarcel if (result & O_ASYNC) 131983366Sjulian td->td_retval[0] |= LINUX_FASYNC; 1320144987Smdodd#ifdef LINUX_O_NOFOLLOW 1321144987Smdodd if (result & O_NOFOLLOW) 1322144987Smdodd td->td_retval[0] |= LINUX_O_NOFOLLOW; 1323144987Smdodd#endif 1324144987Smdodd#ifdef LINUX_O_DIRECT 1325144987Smdodd if (result & O_DIRECT) 1326144987Smdodd td->td_retval[0] |= LINUX_O_DIRECT; 1327144987Smdodd#endif 132883221Smarcel return (error); 132983221Smarcel 133083221Smarcel case LINUX_F_SETFL: 1331102872Siedowse arg = 0; 133283221Smarcel if (args->arg & LINUX_O_NDELAY) 1333102872Siedowse arg |= O_NONBLOCK; 133483221Smarcel if (args->arg & LINUX_O_APPEND) 1335102872Siedowse arg |= O_APPEND; 133683221Smarcel if (args->arg & LINUX_O_SYNC) 1337102872Siedowse arg |= O_FSYNC; 133883221Smarcel if (args->arg & LINUX_FASYNC) 1339102872Siedowse arg |= O_ASYNC; 1340144987Smdodd#ifdef LINUX_O_NOFOLLOW 1341144987Smdodd if (args->arg & LINUX_O_NOFOLLOW) 1342144987Smdodd arg |= O_NOFOLLOW; 1343144987Smdodd#endif 1344144987Smdodd#ifdef LINUX_O_DIRECT 1345144987Smdodd if (args->arg & LINUX_O_DIRECT) 1346144987Smdodd arg |= O_DIRECT; 1347144987Smdodd#endif 1348102872Siedowse return (kern_fcntl(td, args->fd, F_SETFL, arg)); 134983221Smarcel 1350107680Siedowse case LINUX_F_GETLK: 1351111797Sdes error = copyin((void *)args->arg, &linux_flock, 1352107680Siedowse sizeof(linux_flock)); 1353107680Siedowse if (error) 1354107680Siedowse return (error); 1355107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1356107680Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1357107680Siedowse if (error) 1358107680Siedowse return (error); 1359107680Siedowse bsd_to_linux_flock(&bsd_flock, &linux_flock); 1360111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1361107680Siedowse sizeof(linux_flock))); 1362107680Siedowse 1363107680Siedowse case LINUX_F_SETLK: 1364111797Sdes error = copyin((void *)args->arg, &linux_flock, 1365107680Siedowse sizeof(linux_flock)); 1366107680Siedowse if (error) 1367107680Siedowse return (error); 1368107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1369107680Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1370107680Siedowse (intptr_t)&bsd_flock)); 1371107680Siedowse 1372107680Siedowse case LINUX_F_SETLKW: 1373111797Sdes error = copyin((void *)args->arg, &linux_flock, 1374107680Siedowse sizeof(linux_flock)); 1375107680Siedowse if (error) 1376107680Siedowse return (error); 1377107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1378107680Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1379107680Siedowse (intptr_t)&bsd_flock)); 1380107680Siedowse 138183221Smarcel case LINUX_F_GETOWN: 1382102872Siedowse return (kern_fcntl(td, args->fd, F_GETOWN, 0)); 138383221Smarcel 138483221Smarcel case LINUX_F_SETOWN: 138583221Smarcel /* 138683221Smarcel * XXX some Linux applications depend on F_SETOWN having no 138783221Smarcel * significant effect for pipes (SIGIO is not delivered for 138883221Smarcel * pipes under Linux-2.2.35 at least). 138983221Smarcel */ 1390255219Spjd error = fget(td, args->fd, 1391255219Spjd cap_rights_init(&rights, CAP_FCNTL), &fp); 139289319Salfred if (error) 139389319Salfred return (error); 139489306Salfred if (fp->f_type == DTYPE_PIPE) { 139589306Salfred fdrop(fp, td); 139683221Smarcel return (EINVAL); 139789306Salfred } 139889306Salfred fdrop(fp, td); 139983221Smarcel 1400102872Siedowse return (kern_fcntl(td, args->fd, F_SETOWN, args->arg)); 1401283439Sdchagin 1402283439Sdchagin case LINUX_F_DUPFD_CLOEXEC: 1403283439Sdchagin return (kern_fcntl(td, args->fd, F_DUPFD_CLOEXEC, args->arg)); 140483221Smarcel } 140583221Smarcel 140683221Smarcel return (EINVAL); 140783221Smarcel} 140883221Smarcel 140983221Smarcelint 141083366Sjulianlinux_fcntl(struct thread *td, struct linux_fcntl_args *args) 141183221Smarcel{ 141283221Smarcel 141383221Smarcel#ifdef DEBUG 141483221Smarcel if (ldebug(fcntl)) 141583221Smarcel printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd); 141683221Smarcel#endif 141783221Smarcel 1418283415Sdchagin return (fcntl_common(td, args)); 141983221Smarcel} 142083221Smarcel 1421140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 142283221Smarcelint 142383366Sjulianlinux_fcntl64(struct thread *td, struct linux_fcntl64_args *args) 142483221Smarcel{ 142583221Smarcel struct l_flock64 linux_flock; 1426102872Siedowse struct flock bsd_flock; 1427283415Sdchagin struct linux_fcntl_args fcntl_args; 142883221Smarcel int error; 142983221Smarcel 143083221Smarcel#ifdef DEBUG 143183221Smarcel if (ldebug(fcntl64)) 143283221Smarcel printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd); 143383221Smarcel#endif 143483221Smarcel 143583221Smarcel switch (args->cmd) { 143699687Srobert case LINUX_F_GETLK64: 1437111797Sdes error = copyin((void *)args->arg, &linux_flock, 143883221Smarcel sizeof(linux_flock)); 143983221Smarcel if (error) 144083221Smarcel return (error); 1441102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1442102872Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 144383221Smarcel if (error) 144483221Smarcel return (error); 1445102872Siedowse bsd_to_linux_flock64(&bsd_flock, &linux_flock); 1446111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1447111797Sdes sizeof(linux_flock))); 144883221Smarcel 144999687Srobert case LINUX_F_SETLK64: 1450111797Sdes error = copyin((void *)args->arg, &linux_flock, 145183221Smarcel sizeof(linux_flock)); 145283221Smarcel if (error) 145383221Smarcel return (error); 1454102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1455102872Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1456102872Siedowse (intptr_t)&bsd_flock)); 145783221Smarcel 145899687Srobert case LINUX_F_SETLKW64: 1459111797Sdes error = copyin((void *)args->arg, &linux_flock, 146083221Smarcel sizeof(linux_flock)); 146183221Smarcel if (error) 146283221Smarcel return (error); 1463102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1464102872Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1465102872Siedowse (intptr_t)&bsd_flock)); 146683221Smarcel } 146783221Smarcel 1468283415Sdchagin fcntl_args.fd = args->fd; 1469283415Sdchagin fcntl_args.cmd = args->cmd; 1470283415Sdchagin fcntl_args.arg = args->arg; 1471283415Sdchagin return (fcntl_common(td, &fcntl_args)); 147283221Smarcel} 1473133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 147485022Smarcel 147585022Smarcelint 147685022Smarcellinux_chown(struct thread *td, struct linux_chown_args *args) 147785022Smarcel{ 1478102814Siedowse char *path; 1479102814Siedowse int error; 148085022Smarcel 1481102814Siedowse LCONVPATHEXIST(td, args->path, &path); 148285022Smarcel 148385022Smarcel#ifdef DEBUG 148485022Smarcel if (ldebug(chown)) 1485102814Siedowse printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid); 148685022Smarcel#endif 1487274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1488274476Skib args->gid, 0); 1489102814Siedowse LFREEPATH(path); 1490102814Siedowse return (error); 149185022Smarcel} 149285022Smarcel 149385022Smarcelint 1494177997Skiblinux_fchownat(struct thread *td, struct linux_fchownat_args *args) 1495177997Skib{ 1496177997Skib char *path; 1497227693Sed int error, dfd, flag; 1498177997Skib 1499177997Skib if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW) 1500177997Skib return (EINVAL); 1501177997Skib 1502177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 1503177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 1504177997Skib 1505177997Skib#ifdef DEBUG 1506177997Skib if (ldebug(fchownat)) 1507177997Skib printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid); 1508177997Skib#endif 1509177997Skib 1510227693Sed flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 : 1511177997Skib AT_SYMLINK_NOFOLLOW; 1512177997Skib error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid, 1513227693Sed flag); 1514177997Skib LFREEPATH(path); 1515177997Skib return (error); 1516177997Skib} 1517177997Skib 1518177997Skibint 151985022Smarcellinux_lchown(struct thread *td, struct linux_lchown_args *args) 152085022Smarcel{ 1521102814Siedowse char *path; 1522102814Siedowse int error; 152385022Smarcel 1524102814Siedowse LCONVPATHEXIST(td, args->path, &path); 152585022Smarcel 152685022Smarcel#ifdef DEBUG 152785022Smarcel if (ldebug(lchown)) 1528102814Siedowse printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid); 152985022Smarcel#endif 1530274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1531274476Skib args->gid, AT_SYMLINK_NOFOLLOW); 1532102814Siedowse LFREEPATH(path); 1533102814Siedowse return (error); 153485022Smarcel} 1535228957Sjhb 1536228957Sjhbstatic int 1537228957Sjhbconvert_fadvice(int advice) 1538228957Sjhb{ 1539228957Sjhb switch (advice) { 1540228957Sjhb case LINUX_POSIX_FADV_NORMAL: 1541228957Sjhb return (POSIX_FADV_NORMAL); 1542228957Sjhb case LINUX_POSIX_FADV_RANDOM: 1543228957Sjhb return (POSIX_FADV_RANDOM); 1544228957Sjhb case LINUX_POSIX_FADV_SEQUENTIAL: 1545228957Sjhb return (POSIX_FADV_SEQUENTIAL); 1546228957Sjhb case LINUX_POSIX_FADV_WILLNEED: 1547228957Sjhb return (POSIX_FADV_WILLNEED); 1548228957Sjhb case LINUX_POSIX_FADV_DONTNEED: 1549228957Sjhb return (POSIX_FADV_DONTNEED); 1550228957Sjhb case LINUX_POSIX_FADV_NOREUSE: 1551228957Sjhb return (POSIX_FADV_NOREUSE); 1552228957Sjhb default: 1553228957Sjhb return (-1); 1554228957Sjhb } 1555228957Sjhb} 1556228957Sjhb 1557228957Sjhbint 1558228957Sjhblinux_fadvise64(struct thread *td, struct linux_fadvise64_args *args) 1559228957Sjhb{ 1560228957Sjhb int advice; 1561228957Sjhb 1562228957Sjhb advice = convert_fadvice(args->advice); 1563228957Sjhb if (advice == -1) 1564228957Sjhb return (EINVAL); 1565228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1566228957Sjhb advice)); 1567228957Sjhb} 1568228957Sjhb 1569283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1570228957Sjhbint 1571228957Sjhblinux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args) 1572228957Sjhb{ 1573228957Sjhb int advice; 1574228957Sjhb 1575228957Sjhb advice = convert_fadvice(args->advice); 1576228957Sjhb if (advice == -1) 1577228957Sjhb return (EINVAL); 1578228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1579228957Sjhb advice)); 1580228957Sjhb} 1581283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1582234352Sjkim 1583234352Sjkimint 1584234352Sjkimlinux_pipe(struct thread *td, struct linux_pipe_args *args) 1585234352Sjkim{ 1586234352Sjkim int fildes[2]; 1587234352Sjkim int error; 1588234352Sjkim 1589234352Sjkim#ifdef DEBUG 1590234352Sjkim if (ldebug(pipe)) 1591234352Sjkim printf(ARGS(pipe, "*")); 1592234352Sjkim#endif 1593234352Sjkim 1594286021Sed error = kern_pipe(td, fildes, 0, NULL, NULL); 1595315538Strasz if (error != 0) 1596234352Sjkim return (error); 1597234352Sjkim 1598315538Strasz error = copyout(fildes, args->pipefds, sizeof(fildes)); 1599315538Strasz if (error != 0) { 1600315538Strasz (void)kern_close(td, fildes[0]); 1601315538Strasz (void)kern_close(td, fildes[1]); 1602315538Strasz } 1603315538Strasz 1604315538Strasz return (error); 1605234352Sjkim} 1606234352Sjkim 1607234352Sjkimint 1608234352Sjkimlinux_pipe2(struct thread *td, struct linux_pipe2_args *args) 1609234352Sjkim{ 1610234352Sjkim int fildes[2]; 1611234352Sjkim int error, flags; 1612234352Sjkim 1613234352Sjkim#ifdef DEBUG 1614234352Sjkim if (ldebug(pipe2)) 1615234352Sjkim printf(ARGS(pipe2, "*, %d"), args->flags); 1616234352Sjkim#endif 1617234352Sjkim 1618234352Sjkim if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0) 1619234352Sjkim return (EINVAL); 1620234352Sjkim 1621234352Sjkim flags = 0; 1622234352Sjkim if ((args->flags & LINUX_O_NONBLOCK) != 0) 1623234352Sjkim flags |= O_NONBLOCK; 1624234352Sjkim if ((args->flags & LINUX_O_CLOEXEC) != 0) 1625234352Sjkim flags |= O_CLOEXEC; 1626286021Sed error = kern_pipe(td, fildes, flags, NULL, NULL); 1627315538Strasz if (error != 0) 1628234352Sjkim return (error); 1629234352Sjkim 1630315538Strasz error = copyout(fildes, args->pipefds, sizeof(fildes)); 1631315538Strasz if (error != 0) { 1632315538Strasz (void)kern_close(td, fildes[0]); 1633315538Strasz (void)kern_close(td, fildes[1]); 1634315538Strasz } 1635315538Strasz 1636315538Strasz return (error); 1637234352Sjkim} 1638283399Sdchagin 1639283399Sdchaginint 1640283399Sdchaginlinux_dup3(struct thread *td, struct linux_dup3_args *args) 1641283399Sdchagin{ 1642283399Sdchagin int cmd; 1643283399Sdchagin intptr_t newfd; 1644283399Sdchagin 1645283399Sdchagin if (args->oldfd == args->newfd) 1646283399Sdchagin return (EINVAL); 1647283399Sdchagin if ((args->flags & ~LINUX_O_CLOEXEC) != 0) 1648283399Sdchagin return (EINVAL); 1649283399Sdchagin if (args->flags & LINUX_O_CLOEXEC) 1650283399Sdchagin cmd = F_DUP2FD_CLOEXEC; 1651283399Sdchagin else 1652283399Sdchagin cmd = F_DUP2FD; 1653283399Sdchagin 1654283399Sdchagin newfd = args->newfd; 1655283399Sdchagin return (kern_fcntl(td, args->oldfd, cmd, newfd)); 1656283399Sdchagin} 1657283465Sdchagin 1658283465Sdchaginint 1659283465Sdchaginlinux_fallocate(struct thread *td, struct linux_fallocate_args *args) 1660283465Sdchagin{ 1661283465Sdchagin 1662283465Sdchagin /* 1663283465Sdchagin * We emulate only posix_fallocate system call for which 1664283465Sdchagin * mode should be 0. 1665283465Sdchagin */ 1666283465Sdchagin if (args->mode != 0) 1667283465Sdchagin return (ENOSYS); 1668283465Sdchagin 1669283465Sdchagin return (kern_posix_fallocate(td, args->fd, args->offset, 1670283465Sdchagin args->len)); 1671283465Sdchagin} 1672