linux_file.c revision 304987
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 304987 2016-08-29 06:32:30Z kib $"); 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 56163606Srwatson#include <security/mac/mac_framework.h> 57163606Srwatson 58140214Sobrien#ifdef COMPAT_LINUX32 59140214Sobrien#include <machine/../linux32/linux.h> 60140214Sobrien#include <machine/../linux32/linux32_proto.h> 61140214Sobrien#else 6264905Smarcel#include <machine/../linux/linux.h> 6368583Smarcel#include <machine/../linux/linux_proto.h> 64133816Stjr#endif 65246085Sjhb#include <compat/linux/linux_misc.h> 6664905Smarcel#include <compat/linux/linux_util.h> 67177997Skib#include <compat/linux/linux_file.h> 689313Ssos 699313Ssosint 7083366Sjulianlinux_creat(struct thread *td, struct linux_creat_args *args) 719313Ssos{ 72300411Sdchagin char *path; 73300411Sdchagin int error; 749313Ssos 75300411Sdchagin LCONVPATHEXIST(td, args->path, &path); 769313Ssos#ifdef DEBUG 7772543Sjlemon if (ldebug(creat)) 78102814Siedowse printf(ARGS(creat, "%s, %d"), path, args->mode); 799313Ssos#endif 80300411Sdchagin error = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE, 81300411Sdchagin O_WRONLY | O_CREAT | O_TRUNC, args->mode); 82300411Sdchagin LFREEPATH(path); 83300411Sdchagin return (error); 849313Ssos} 859313Ssos 86168014Sjulian 87168014Sjulianstatic int 88177997Skiblinux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode) 899313Ssos{ 90300411Sdchagin cap_rights_t rights; 91300411Sdchagin struct proc *p = td->td_proc; 92300411Sdchagin struct file *fp; 93300411Sdchagin int fd; 94300411Sdchagin int bsd_flags, error; 9514331Speter 96300411Sdchagin bsd_flags = 0; 97300411Sdchagin switch (l_flags & LINUX_O_ACCMODE) { 98300411Sdchagin case LINUX_O_WRONLY: 99300411Sdchagin bsd_flags |= O_WRONLY; 100300411Sdchagin break; 101300411Sdchagin case LINUX_O_RDWR: 102300411Sdchagin bsd_flags |= O_RDWR; 103300411Sdchagin break; 104300411Sdchagin default: 105300411Sdchagin bsd_flags |= O_RDONLY; 106300411Sdchagin } 107300411Sdchagin if (l_flags & LINUX_O_NDELAY) 108300411Sdchagin bsd_flags |= O_NONBLOCK; 109300411Sdchagin if (l_flags & LINUX_O_APPEND) 110300411Sdchagin bsd_flags |= O_APPEND; 111300411Sdchagin if (l_flags & LINUX_O_SYNC) 112300411Sdchagin bsd_flags |= O_FSYNC; 113300411Sdchagin if (l_flags & LINUX_O_NONBLOCK) 114300411Sdchagin bsd_flags |= O_NONBLOCK; 115300411Sdchagin if (l_flags & LINUX_FASYNC) 116300411Sdchagin bsd_flags |= O_ASYNC; 117300411Sdchagin if (l_flags & LINUX_O_CREAT) 118300411Sdchagin bsd_flags |= O_CREAT; 119300411Sdchagin if (l_flags & LINUX_O_TRUNC) 120300411Sdchagin bsd_flags |= O_TRUNC; 121300411Sdchagin if (l_flags & LINUX_O_EXCL) 122300411Sdchagin bsd_flags |= O_EXCL; 123300411Sdchagin if (l_flags & LINUX_O_NOCTTY) 124300411Sdchagin bsd_flags |= O_NOCTTY; 125300411Sdchagin if (l_flags & LINUX_O_DIRECT) 126300411Sdchagin bsd_flags |= O_DIRECT; 127300411Sdchagin if (l_flags & LINUX_O_NOFOLLOW) 128300411Sdchagin bsd_flags |= O_NOFOLLOW; 129300411Sdchagin if (l_flags & LINUX_O_DIRECTORY) 130300411Sdchagin bsd_flags |= O_DIRECTORY; 131300411Sdchagin /* XXX LINUX_O_NOATIME: unable to be easily implemented. */ 1329313Ssos 133300411Sdchagin error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode); 134300411Sdchagin if (error != 0) 135300411Sdchagin goto done; 136300411Sdchagin if (bsd_flags & O_NOCTTY) 137300411Sdchagin goto done; 138178036Srdivacky 139300411Sdchagin /* 140300411Sdchagin * XXX In between kern_open() and fget(), another process 141300411Sdchagin * having the same filedesc could use that fd without 142300411Sdchagin * checking below. 143300411Sdchagin */ 144300411Sdchagin fd = td->td_retval[0]; 145300411Sdchagin if (fget(td, fd, cap_rights_init(&rights, CAP_IOCTL), &fp) == 0) { 146300411Sdchagin if (fp->f_type != DTYPE_VNODE) { 147300411Sdchagin fdrop(fp, td); 148300411Sdchagin goto done; 149300411Sdchagin } 150300411Sdchagin sx_slock(&proctree_lock); 151300411Sdchagin PROC_LOCK(p); 152300411Sdchagin if (SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 153300411Sdchagin PROC_UNLOCK(p); 154300411Sdchagin sx_sunlock(&proctree_lock); 155300411Sdchagin /* XXXPJD: Verify if TIOCSCTTY is allowed. */ 156300411Sdchagin (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, 157300411Sdchagin td->td_ucred, td); 158300411Sdchagin } else { 159300411Sdchagin PROC_UNLOCK(p); 160300411Sdchagin sx_sunlock(&proctree_lock); 161300411Sdchagin } 162300411Sdchagin fdrop(fp, td); 163300411Sdchagin } 164281726Strasz 165281726Straszdone: 16614331Speter#ifdef DEBUG 167300411Sdchagin if (ldebug(open)) 168300411Sdchagin printf(LMSG("open returns error %d"), error); 16914331Speter#endif 170300411Sdchagin LFREEPATH(path); 171300411Sdchagin return (error); 1729313Ssos} 1739313Ssos 1749313Ssosint 175168014Sjulianlinux_openat(struct thread *td, struct linux_openat_args *args) 176168014Sjulian{ 177177997Skib char *path; 178177997Skib int dfd; 179168014Sjulian 180177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 181177997Skib if (args->flags & LINUX_O_CREAT) 182177997Skib LCONVPATH_AT(td, args->filename, &path, 1, dfd); 183177997Skib else 184177997Skib LCONVPATH_AT(td, args->filename, &path, 0, dfd); 185168014Sjulian#ifdef DEBUG 186168014Sjulian if (ldebug(openat)) 187168014Sjulian printf(ARGS(openat, "%i, %s, 0x%x, 0x%x"), args->dfd, 188177997Skib path, args->flags, args->mode); 189168014Sjulian#endif 190177997Skib return (linux_common_open(td, dfd, path, args->flags, args->mode)); 191168014Sjulian} 192168014Sjulian 193168014Sjulianint 194168014Sjulianlinux_open(struct thread *td, struct linux_open_args *args) 195168014Sjulian{ 196300411Sdchagin char *path; 197168014Sjulian 198300411Sdchagin if (args->flags & LINUX_O_CREAT) 199300411Sdchagin LCONVPATHCREAT(td, args->path, &path); 200300411Sdchagin else 201300411Sdchagin LCONVPATHEXIST(td, args->path, &path); 202168014Sjulian#ifdef DEBUG 203168014Sjulian if (ldebug(open)) 204168014Sjulian printf(ARGS(open, "%s, 0x%x, 0x%x"), 205168014Sjulian path, args->flags, args->mode); 206168014Sjulian#endif 207178036Srdivacky return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode)); 208168014Sjulian} 209168014Sjulian 210168014Sjulianint 21183366Sjulianlinux_lseek(struct thread *td, struct linux_lseek_args *args) 2129313Ssos{ 213300411Sdchagin struct lseek_args /* { 214300411Sdchagin int fd; 215300411Sdchagin int pad; 216300411Sdchagin off_t offset; 217300411Sdchagin int whence; 218300411Sdchagin } */ tmp_args; 219300411Sdchagin int error; 2209313Ssos 2219313Ssos#ifdef DEBUG 22272543Sjlemon if (ldebug(lseek)) 22372543Sjlemon printf(ARGS(lseek, "%d, %ld, %d"), 22483221Smarcel args->fdes, (long)args->off, args->whence); 2259313Ssos#endif 226300411Sdchagin tmp_args.fd = args->fdes; 227300411Sdchagin tmp_args.offset = (off_t)args->off; 228300411Sdchagin tmp_args.whence = args->whence; 229300411Sdchagin error = sys_lseek(td, &tmp_args); 230300411Sdchagin return (error); 2319313Ssos} 2329313Ssos 233283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 23414331Speterint 23583366Sjulianlinux_llseek(struct thread *td, struct linux_llseek_args *args) 23614331Speter{ 23714331Speter struct lseek_args bsd_args; 23814331Speter int error; 23914331Speter off_t off; 24014331Speter 24114331Speter#ifdef DEBUG 24272543Sjlemon if (ldebug(llseek)) 24372543Sjlemon printf(ARGS(llseek, "%d, %d:%d, %d"), 24472543Sjlemon args->fd, args->ohigh, args->olow, args->whence); 24514331Speter#endif 24614331Speter off = (args->olow) | (((off_t) args->ohigh) << 32); 24714331Speter 24814331Speter bsd_args.fd = args->fd; 24914331Speter bsd_args.offset = off; 25014331Speter bsd_args.whence = args->whence; 25114331Speter 252225617Skmacy if ((error = sys_lseek(td, &bsd_args))) 253300411Sdchagin return (error); 25414331Speter 255111797Sdes if ((error = copyout(td->td_retval, args->res, sizeof (off_t)))) 256300411Sdchagin return (error); 25714331Speter 25883366Sjulian td->td_retval[0] = 0; 259300411Sdchagin return (0); 26014331Speter} 26114331Speter 2629313Ssosint 26383366Sjulianlinux_readdir(struct thread *td, struct linux_readdir_args *args) 2649313Ssos{ 26514331Speter struct linux_getdents_args lda; 26614331Speter 26714331Speter lda.fd = args->fd; 26814331Speter lda.dent = args->dent; 26914331Speter lda.count = 1; 270300411Sdchagin return (linux_getdents(td, &lda)); 27114331Speter} 272283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 27314331Speter 27483221Smarcel/* 27583221Smarcel * Note that linux_getdents(2) and linux_getdents64(2) have the same 27683221Smarcel * arguments. They only differ in the definition of struct dirent they 27783221Smarcel * operate on. We use this to common the code, with the exception of 27883221Smarcel * accessing struct dirent. Note that linux_readdir(2) is implemented 27983221Smarcel * by means of linux_getdents(2). In this case we never operate on 28083221Smarcel * struct dirent64 and thus don't need to handle it... 28183221Smarcel */ 28283221Smarcel 28383221Smarcelstruct l_dirent { 284179651Srdivacky l_ulong d_ino; 28583221Smarcel l_off_t d_off; 28683221Smarcel l_ushort d_reclen; 28783221Smarcel char d_name[LINUX_NAME_MAX + 1]; 28883221Smarcel}; 28983221Smarcel 29083221Smarcelstruct l_dirent64 { 29183221Smarcel uint64_t d_ino; 29283221Smarcel int64_t d_off; 29383221Smarcel l_ushort d_reclen; 29483221Smarcel u_char d_type; 29583221Smarcel char d_name[LINUX_NAME_MAX + 1]; 29683221Smarcel}; 29783221Smarcel 298182892Srdivacky/* 299182892Srdivacky * Linux uses the last byte in the dirent buffer to store d_type, 300182892Srdivacky * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes. 301182892Srdivacky */ 302182892Srdivacky#define LINUX_RECLEN(namlen) \ 303298482Spfg roundup(offsetof(struct l_dirent, d_name) + (namlen) + 2, sizeof(l_ulong)) 30483221Smarcel 305182892Srdivacky#define LINUX_RECLEN64(namlen) \ 306298482Spfg roundup(offsetof(struct l_dirent64, d_name) + (namlen) + 1, \ 307182892Srdivacky sizeof(uint64_t)) 308182892Srdivacky 309182892Srdivacky#define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \ 310182892Srdivacky LINUX_RECLEN64(LINUX_NAME_MAX)) 31183221Smarcel#define LINUX_DIRBLKSIZ 512 31283221Smarcel 31383221Smarcelstatic int 31483366Sjuliangetdents_common(struct thread *td, struct linux_getdents64_args *args, 31583221Smarcel int is64bit) 31614331Speter{ 317111798Sdes struct dirent *bdp; 31883221Smarcel struct vnode *vp; 31983221Smarcel caddr_t inp, buf; /* BSD-format */ 32083221Smarcel int len, reclen; /* BSD-format */ 32183221Smarcel caddr_t outp; /* Linux-format */ 32283221Smarcel int resid, linuxreclen=0; /* Linux-format */ 323182892Srdivacky caddr_t lbuf; /* Linux-format */ 324255219Spjd cap_rights_t rights; 32583221Smarcel struct file *fp; 32683221Smarcel struct uio auio; 32783221Smarcel struct iovec aiov; 32883221Smarcel off_t off; 329182892Srdivacky struct l_dirent *linux_dirent; 330182892Srdivacky struct l_dirent64 *linux_dirent64; 33183221Smarcel int buflen, error, eofflag, nbytes, justone; 33283221Smarcel u_long *cookies = NULL, *cookiep; 333241896Skib int ncookies; 3349313Ssos 335160276Sjhb nbytes = args->count; 336160276Sjhb if (nbytes == 1) { 337160276Sjhb /* readdir(2) case. Always struct dirent. */ 338160276Sjhb if (is64bit) 339160276Sjhb return (EINVAL); 340188572Snetchild nbytes = sizeof(*linux_dirent); 341160276Sjhb justone = 1; 342160276Sjhb } else 343160276Sjhb justone = 0; 344160276Sjhb 345284446Smjg error = getvnode(td, args->fd, cap_rights_init(&rights, CAP_READ), &fp); 346255219Spjd if (error != 0) 34783221Smarcel return (error); 3489313Ssos 34989306Salfred if ((fp->f_flag & FREAD) == 0) { 35089306Salfred fdrop(fp, td); 35183221Smarcel return (EBADF); 35289306Salfred } 3539313Ssos 354238029Skib off = foffset_lock(fp, 0); 355116678Sphk vp = fp->f_vnode; 35689306Salfred if (vp->v_type != VDIR) { 357238029Skib foffset_unlock(fp, off, 0); 35889306Salfred fdrop(fp, td); 35983221Smarcel return (EINVAL); 36089306Salfred } 3619313Ssos 3629313Ssos 36383221Smarcel buflen = max(LINUX_DIRBLKSIZ, nbytes); 36483221Smarcel buflen = min(buflen, MAXBSIZE); 365283427Sdchagin buf = malloc(buflen, M_LINUX, M_WAITOK); 366283427Sdchagin lbuf = malloc(LINUX_MAXRECLEN, M_LINUX, M_WAITOK | M_ZERO); 367188588Sjhb vn_lock(vp, LK_SHARED | LK_RETRY); 36883221Smarcel 36983221Smarcel aiov.iov_base = buf; 37083221Smarcel aiov.iov_len = buflen; 37183221Smarcel auio.uio_iov = &aiov; 37283221Smarcel auio.uio_iovcnt = 1; 37383221Smarcel auio.uio_rw = UIO_READ; 37483221Smarcel auio.uio_segflg = UIO_SYSSPACE; 37583366Sjulian auio.uio_td = td; 37683221Smarcel auio.uio_resid = buflen; 37783221Smarcel auio.uio_offset = off; 3789313Ssos 379101189Srwatson#ifdef MAC 380101189Srwatson /* 381101189Srwatson * Do directory search MAC check using non-cached credentials. 382101189Srwatson */ 383172930Srwatson if ((error = mac_vnode_check_readdir(td->td_ucred, vp))) 384101189Srwatson goto out; 385101189Srwatson#endif /* MAC */ 38683221Smarcel if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 38783221Smarcel &cookies))) 38883221Smarcel goto out; 3899313Ssos 39083221Smarcel inp = buf; 39183221Smarcel outp = (caddr_t)args->dirent; 39283221Smarcel resid = nbytes; 39383221Smarcel if ((len = buflen - auio.uio_resid) <= 0) 39483221Smarcel goto eof; 3959313Ssos 39683221Smarcel cookiep = cookies; 39724654Sdfr 39883221Smarcel if (cookies) { 39983221Smarcel /* 40083221Smarcel * When using cookies, the vfs has the option of reading from 40183221Smarcel * a different offset than that supplied (UFS truncates the 40283221Smarcel * offset to a block boundary to make sure that it never reads 40383221Smarcel * partway through a directory entry, even if the directory 40483221Smarcel * has been compacted). 40583221Smarcel */ 40683221Smarcel while (len > 0 && ncookies > 0 && *cookiep <= off) { 40783221Smarcel bdp = (struct dirent *) inp; 40883221Smarcel len -= bdp->d_reclen; 40983221Smarcel inp += bdp->d_reclen; 41083221Smarcel cookiep++; 41183221Smarcel ncookies--; 41283221Smarcel } 41324654Sdfr } 41424654Sdfr 41583221Smarcel while (len > 0) { 41683221Smarcel if (cookiep && ncookies == 0) 41783221Smarcel break; 41883221Smarcel bdp = (struct dirent *) inp; 41983221Smarcel reclen = bdp->d_reclen; 42083221Smarcel if (reclen & 3) { 42183221Smarcel error = EFAULT; 42283221Smarcel goto out; 42383221Smarcel } 42483221Smarcel 42583221Smarcel if (bdp->d_fileno == 0) { 42683221Smarcel inp += reclen; 42783221Smarcel if (cookiep) { 42883221Smarcel off = *cookiep++; 42983221Smarcel ncookies--; 43083221Smarcel } else 43183221Smarcel off += reclen; 43283221Smarcel 43383221Smarcel len -= reclen; 43483221Smarcel continue; 43583221Smarcel } 43683221Smarcel 43783221Smarcel linuxreclen = (is64bit) 438182892Srdivacky ? LINUX_RECLEN64(bdp->d_namlen) 439182892Srdivacky : LINUX_RECLEN(bdp->d_namlen); 44083221Smarcel 44183221Smarcel if (reclen > len || resid < linuxreclen) { 44283221Smarcel outp++; 44383221Smarcel break; 44483221Smarcel } 44583221Smarcel 44683221Smarcel if (justone) { 44783221Smarcel /* readdir(2) case. */ 448182892Srdivacky linux_dirent = (struct l_dirent*)lbuf; 449182892Srdivacky linux_dirent->d_ino = bdp->d_fileno; 450182892Srdivacky linux_dirent->d_off = (l_off_t)linuxreclen; 451182892Srdivacky linux_dirent->d_reclen = (l_ushort)bdp->d_namlen; 452182892Srdivacky strlcpy(linux_dirent->d_name, bdp->d_name, 453182892Srdivacky linuxreclen - offsetof(struct l_dirent, d_name)); 454182892Srdivacky error = copyout(linux_dirent, outp, linuxreclen); 45583221Smarcel } 456182892Srdivacky if (is64bit) { 457182892Srdivacky linux_dirent64 = (struct l_dirent64*)lbuf; 458182892Srdivacky linux_dirent64->d_ino = bdp->d_fileno; 459182892Srdivacky linux_dirent64->d_off = (cookiep) 460182892Srdivacky ? (l_off_t)*cookiep 461182892Srdivacky : (l_off_t)(off + reclen); 462182892Srdivacky linux_dirent64->d_reclen = (l_ushort)linuxreclen; 463182892Srdivacky linux_dirent64->d_type = bdp->d_type; 464182892Srdivacky strlcpy(linux_dirent64->d_name, bdp->d_name, 465182892Srdivacky linuxreclen - offsetof(struct l_dirent64, d_name)); 466182892Srdivacky error = copyout(linux_dirent64, outp, linuxreclen); 467182892Srdivacky } else if (!justone) { 468182892Srdivacky linux_dirent = (struct l_dirent*)lbuf; 469182892Srdivacky linux_dirent->d_ino = bdp->d_fileno; 470182892Srdivacky linux_dirent->d_off = (cookiep) 471182892Srdivacky ? (l_off_t)*cookiep 472182892Srdivacky : (l_off_t)(off + reclen); 473182892Srdivacky linux_dirent->d_reclen = (l_ushort)linuxreclen; 474182892Srdivacky /* 475182892Srdivacky * Copy d_type to last byte of l_dirent buffer 476182892Srdivacky */ 477182892Srdivacky lbuf[linuxreclen-1] = bdp->d_type; 478182892Srdivacky strlcpy(linux_dirent->d_name, bdp->d_name, 479182892Srdivacky linuxreclen - offsetof(struct l_dirent, d_name)-1); 480182892Srdivacky error = copyout(linux_dirent, outp, linuxreclen); 481182892Srdivacky } 482182892Srdivacky 48383221Smarcel if (error) 48483221Smarcel goto out; 48583221Smarcel 48683221Smarcel inp += reclen; 48783221Smarcel if (cookiep) { 48883221Smarcel off = *cookiep++; 48983221Smarcel ncookies--; 49083221Smarcel } else 49183221Smarcel off += reclen; 49283221Smarcel 49383221Smarcel outp += linuxreclen; 49483221Smarcel resid -= linuxreclen; 49583221Smarcel len -= reclen; 49683221Smarcel if (justone) 49783221Smarcel break; 49810355Sswallace } 4999313Ssos 500217578Skib if (outp == (caddr_t)args->dirent) { 501217578Skib nbytes = resid; 502217578Skib goto eof; 503217578Skib } 5049313Ssos 50583221Smarcel if (justone) 50683221Smarcel nbytes = resid + linuxreclen; 50710355Sswallace 5089313Ssoseof: 50983366Sjulian td->td_retval[0] = nbytes - resid; 51083221Smarcel 5119313Ssosout: 512247764Seadler free(cookies, M_TEMP); 51383221Smarcel 514175294Sattilio VOP_UNLOCK(vp, 0); 515238029Skib foffset_unlock(fp, off, 0); 51689306Salfred fdrop(fp, td); 517283427Sdchagin free(buf, M_LINUX); 518283427Sdchagin free(lbuf, M_LINUX); 51983221Smarcel return (error); 5209313Ssos} 52114331Speter 52283221Smarcelint 52383366Sjulianlinux_getdents(struct thread *td, struct linux_getdents_args *args) 52483221Smarcel{ 52583221Smarcel 52683221Smarcel#ifdef DEBUG 52783221Smarcel if (ldebug(getdents)) 52883221Smarcel printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count); 52983221Smarcel#endif 53083221Smarcel 53183366Sjulian return (getdents_common(td, (struct linux_getdents64_args*)args, 0)); 53283221Smarcel} 53383221Smarcel 53483221Smarcelint 53583366Sjulianlinux_getdents64(struct thread *td, struct linux_getdents64_args *args) 53683221Smarcel{ 53783221Smarcel 53883221Smarcel#ifdef DEBUG 53983221Smarcel if (ldebug(getdents64)) 54083221Smarcel printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count); 54183221Smarcel#endif 54283221Smarcel 54383366Sjulian return (getdents_common(td, args, 1)); 54483221Smarcel} 54583221Smarcel 54614331Speter/* 54714331Speter * These exist mainly for hooks for doing /compat/linux translation. 54814331Speter */ 54914331Speter 55014331Speterint 55183366Sjulianlinux_access(struct thread *td, struct linux_access_args *args) 55214331Speter{ 553102814Siedowse char *path; 554102814Siedowse int error; 55514331Speter 556162585Snetchild /* linux convention */ 557227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 558162585Snetchild return (EINVAL); 559162585Snetchild 560102814Siedowse LCONVPATHEXIST(td, args->path, &path); 56114331Speter 56214331Speter#ifdef DEBUG 56372543Sjlemon if (ldebug(access)) 564227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 56514331Speter#endif 566274476Skib error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0, 567274476Skib args->amode); 568102814Siedowse LFREEPATH(path); 569162585Snetchild 570102814Siedowse return (error); 57114331Speter} 57214331Speter 57314331Speterint 574177997Skiblinux_faccessat(struct thread *td, struct linux_faccessat_args *args) 575177997Skib{ 576177997Skib char *path; 577283428Sdchagin int error, dfd; 578177997Skib 579177997Skib /* linux convention */ 580227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 581177997Skib return (EINVAL); 582177997Skib 583177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 584177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 585177997Skib 586177997Skib#ifdef DEBUG 587177997Skib if (ldebug(access)) 588227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 589177997Skib#endif 590177997Skib 591283428Sdchagin error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode); 592177997Skib LFREEPATH(path); 593177997Skib 594177997Skib return (error); 595177997Skib} 596177997Skib 597177997Skibint 59883366Sjulianlinux_unlink(struct thread *td, struct linux_unlink_args *args) 59914331Speter{ 600102814Siedowse char *path; 601102814Siedowse int error; 602162201Snetchild struct stat st; 60314331Speter 604102814Siedowse LCONVPATHEXIST(td, args->path, &path); 60514331Speter 60614331Speter#ifdef DEBUG 60772543Sjlemon if (ldebug(unlink)) 608102814Siedowse printf(ARGS(unlink, "%s"), path); 60914331Speter#endif 61014331Speter 611274476Skib error = kern_unlinkat(td, AT_FDCWD, path, UIO_SYSSPACE, 0); 612274476Skib if (error == EPERM) { 613162201Snetchild /* Introduce POSIX noncompliant behaviour of Linux */ 614274476Skib if (kern_statat(td, 0, AT_FDCWD, path, UIO_SYSSPACE, &st, 615274476Skib NULL) == 0) { 616162201Snetchild if (S_ISDIR(st.st_mode)) 617162201Snetchild error = EISDIR; 618274476Skib } 619274476Skib } 620102814Siedowse LFREEPATH(path); 621102814Siedowse return (error); 62214331Speter} 62314331Speter 62414331Speterint 625177997Skiblinux_unlinkat(struct thread *td, struct linux_unlinkat_args *args) 626177997Skib{ 627177997Skib char *path; 628177997Skib int error, dfd; 629177997Skib struct stat st; 630177997Skib 631177997Skib if (args->flag & ~LINUX_AT_REMOVEDIR) 632177997Skib return (EINVAL); 633177997Skib 634177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 635177997Skib LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); 636177997Skib 637177997Skib#ifdef DEBUG 638177997Skib if (ldebug(unlinkat)) 639177997Skib printf(ARGS(unlinkat, "%s"), path); 640177997Skib#endif 641177997Skib 642177997Skib if (args->flag & LINUX_AT_REMOVEDIR) 643177997Skib error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE); 644177997Skib else 645202113Smckusick error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0); 646177997Skib if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) { 647177997Skib /* Introduce POSIX noncompliant behaviour of Linux */ 648177997Skib if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path, 649274476Skib UIO_SYSSPACE, &st, NULL) == 0 && S_ISDIR(st.st_mode)) 650177997Skib error = EISDIR; 651177997Skib } 652177997Skib LFREEPATH(path); 653177997Skib return (error); 654177997Skib} 655177997Skibint 65683366Sjulianlinux_chdir(struct thread *td, struct linux_chdir_args *args) 65714331Speter{ 658102814Siedowse char *path; 659102814Siedowse int error; 66014331Speter 661102814Siedowse LCONVPATHEXIST(td, args->path, &path); 66214331Speter 66314331Speter#ifdef DEBUG 66472543Sjlemon if (ldebug(chdir)) 665102814Siedowse printf(ARGS(chdir, "%s"), path); 66614331Speter#endif 667102814Siedowse error = kern_chdir(td, path, UIO_SYSSPACE); 668102814Siedowse LFREEPATH(path); 669102814Siedowse return (error); 67014331Speter} 67114331Speter 67214331Speterint 67383366Sjulianlinux_chmod(struct thread *td, struct linux_chmod_args *args) 67414331Speter{ 675102814Siedowse char *path; 676102814Siedowse int error; 67714331Speter 678102814Siedowse LCONVPATHEXIST(td, args->path, &path); 67914331Speter 68014331Speter#ifdef DEBUG 68172543Sjlemon if (ldebug(chmod)) 682102814Siedowse printf(ARGS(chmod, "%s, %d"), path, args->mode); 68314331Speter#endif 684274476Skib error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE, 685274476Skib args->mode, 0); 686102814Siedowse LFREEPATH(path); 687102814Siedowse return (error); 68814331Speter} 68914331Speter 69014331Speterint 691177997Skiblinux_fchmodat(struct thread *td, struct linux_fchmodat_args *args) 692177997Skib{ 693177997Skib char *path; 694177997Skib int error, dfd; 695177997Skib 696177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 697177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 698177997Skib 699177997Skib#ifdef DEBUG 700177997Skib if (ldebug(fchmodat)) 701177997Skib printf(ARGS(fchmodat, "%s, %d"), path, args->mode); 702177997Skib#endif 703177997Skib 704177997Skib error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0); 705177997Skib LFREEPATH(path); 706177997Skib return (error); 707177997Skib} 708177997Skib 709177997Skibint 71083366Sjulianlinux_mkdir(struct thread *td, struct linux_mkdir_args *args) 71114331Speter{ 712102814Siedowse char *path; 713102814Siedowse int error; 71414331Speter 715102814Siedowse LCONVPATHCREAT(td, args->path, &path); 71614331Speter 71714331Speter#ifdef DEBUG 71872543Sjlemon if (ldebug(mkdir)) 719102814Siedowse printf(ARGS(mkdir, "%s, %d"), path, args->mode); 72014331Speter#endif 721274476Skib error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, args->mode); 722102814Siedowse LFREEPATH(path); 723102814Siedowse return (error); 72414331Speter} 72514331Speter 72614331Speterint 727177997Skiblinux_mkdirat(struct thread *td, struct linux_mkdirat_args *args) 728177997Skib{ 729177997Skib char *path; 730177997Skib int error, dfd; 731177997Skib 732177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 733177997Skib LCONVPATHCREAT_AT(td, args->pathname, &path, dfd); 734177997Skib 735177997Skib#ifdef DEBUG 736177997Skib if (ldebug(mkdirat)) 737177997Skib printf(ARGS(mkdirat, "%s, %d"), path, args->mode); 738177997Skib#endif 739177997Skib error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode); 740177997Skib LFREEPATH(path); 741177997Skib return (error); 742177997Skib} 743177997Skib 744177997Skibint 74583366Sjulianlinux_rmdir(struct thread *td, struct linux_rmdir_args *args) 74614331Speter{ 747102814Siedowse char *path; 748102814Siedowse int error; 74914331Speter 750102814Siedowse LCONVPATHEXIST(td, args->path, &path); 75114331Speter 75214331Speter#ifdef DEBUG 75372543Sjlemon if (ldebug(rmdir)) 754102814Siedowse printf(ARGS(rmdir, "%s"), path); 75514331Speter#endif 756274476Skib error = kern_rmdirat(td, AT_FDCWD, path, UIO_SYSSPACE); 757102814Siedowse LFREEPATH(path); 758102814Siedowse return (error); 75914331Speter} 76014331Speter 76114331Speterint 76283366Sjulianlinux_rename(struct thread *td, struct linux_rename_args *args) 76314331Speter{ 764102814Siedowse char *from, *to; 765102814Siedowse int error; 76614331Speter 767102814Siedowse LCONVPATHEXIST(td, args->from, &from); 768102814Siedowse /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 769177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 770102814Siedowse if (to == NULL) { 771102814Siedowse LFREEPATH(from); 772102814Siedowse return (error); 773102814Siedowse } 77414331Speter 77514331Speter#ifdef DEBUG 77672543Sjlemon if (ldebug(rename)) 777102814Siedowse printf(ARGS(rename, "%s, %s"), from, to); 77814331Speter#endif 779274476Skib error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE); 780102814Siedowse LFREEPATH(from); 781102814Siedowse LFREEPATH(to); 782102814Siedowse return (error); 78314331Speter} 78414331Speter 78514331Speterint 786177997Skiblinux_renameat(struct thread *td, struct linux_renameat_args *args) 787177997Skib{ 788177997Skib char *from, *to; 789177997Skib int error, olddfd, newdfd; 790177997Skib 791177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 792177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 793177997Skib LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd); 794177997Skib /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 795177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 796177997Skib if (to == NULL) { 797177997Skib LFREEPATH(from); 798177997Skib return (error); 799177997Skib } 800177997Skib 801177997Skib#ifdef DEBUG 802177997Skib if (ldebug(renameat)) 803177997Skib printf(ARGS(renameat, "%s, %s"), from, to); 804177997Skib#endif 805177997Skib error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE); 806177997Skib LFREEPATH(from); 807177997Skib LFREEPATH(to); 808177997Skib return (error); 809177997Skib} 810177997Skib 811177997Skibint 81283366Sjulianlinux_symlink(struct thread *td, struct linux_symlink_args *args) 81314331Speter{ 814102814Siedowse char *path, *to; 815102814Siedowse int error; 81614331Speter 817102814Siedowse LCONVPATHEXIST(td, args->path, &path); 818102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 819177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 820102814Siedowse if (to == NULL) { 821102814Siedowse LFREEPATH(path); 822102814Siedowse return (error); 823102814Siedowse } 82414331Speter 82514331Speter#ifdef DEBUG 82672543Sjlemon if (ldebug(symlink)) 827102814Siedowse printf(ARGS(symlink, "%s, %s"), path, to); 82814331Speter#endif 829274476Skib error = kern_symlinkat(td, path, AT_FDCWD, to, UIO_SYSSPACE); 830102814Siedowse LFREEPATH(path); 831102814Siedowse LFREEPATH(to); 832102814Siedowse return (error); 83314331Speter} 83414331Speter 83514331Speterint 836177997Skiblinux_symlinkat(struct thread *td, struct linux_symlinkat_args *args) 837177997Skib{ 838177997Skib char *path, *to; 839177997Skib int error, dfd; 840177997Skib 841177997Skib dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 842177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, dfd); 843177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 844177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd); 845177997Skib if (to == NULL) { 846177997Skib LFREEPATH(path); 847177997Skib return (error); 848177997Skib } 849177997Skib 850177997Skib#ifdef DEBUG 851177997Skib if (ldebug(symlinkat)) 852177997Skib printf(ARGS(symlinkat, "%s, %s"), path, to); 853177997Skib#endif 854177997Skib 855177997Skib error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE); 856177997Skib LFREEPATH(path); 857177997Skib LFREEPATH(to); 858177997Skib return (error); 859177997Skib} 860177997Skib 861177997Skibint 86283366Sjulianlinux_readlink(struct thread *td, struct linux_readlink_args *args) 86314331Speter{ 864102814Siedowse char *name; 865102814Siedowse int error; 86614331Speter 867102814Siedowse LCONVPATHEXIST(td, args->name, &name); 86814331Speter 86914331Speter#ifdef DEBUG 87072543Sjlemon if (ldebug(readlink)) 871102814Siedowse printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf, 872102814Siedowse args->count); 87314331Speter#endif 874274476Skib error = kern_readlinkat(td, AT_FDCWD, name, UIO_SYSSPACE, 875274476Skib args->buf, UIO_USERSPACE, args->count); 876102814Siedowse LFREEPATH(name); 877102814Siedowse return (error); 87814331Speter} 87914331Speter 88014331Speterint 881177997Skiblinux_readlinkat(struct thread *td, struct linux_readlinkat_args *args) 882177997Skib{ 883177997Skib char *name; 884177997Skib int error, dfd; 885177997Skib 886177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 887177997Skib LCONVPATHEXIST_AT(td, args->path, &name, dfd); 888177997Skib 889177997Skib#ifdef DEBUG 890177997Skib if (ldebug(readlinkat)) 891177997Skib printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf, 892177997Skib args->bufsiz); 893177997Skib#endif 894177997Skib 895177997Skib error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf, 896177997Skib UIO_USERSPACE, args->bufsiz); 897177997Skib LFREEPATH(name); 898177997Skib return (error); 899177997Skib} 900178439Srdivacky 901177997Skibint 90283366Sjulianlinux_truncate(struct thread *td, struct linux_truncate_args *args) 90314331Speter{ 904102814Siedowse char *path; 905102814Siedowse int error; 90614331Speter 907102814Siedowse LCONVPATHEXIST(td, args->path, &path); 90814331Speter 90914331Speter#ifdef DEBUG 91072543Sjlemon if (ldebug(truncate)) 911102814Siedowse printf(ARGS(truncate, "%s, %ld"), path, (long)args->length); 91214331Speter#endif 91314331Speter 914102814Siedowse error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 915102814Siedowse LFREEPATH(path); 916102814Siedowse return (error); 91714331Speter} 91814331Speter 919283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 92049662Smarcelint 921178439Srdivackylinux_truncate64(struct thread *td, struct linux_truncate64_args *args) 922178439Srdivacky{ 923178439Srdivacky char *path; 924178439Srdivacky int error; 925178439Srdivacky 926178439Srdivacky LCONVPATHEXIST(td, args->path, &path); 927178439Srdivacky 928178439Srdivacky#ifdef DEBUG 929178439Srdivacky if (ldebug(truncate64)) 930178439Srdivacky printf(ARGS(truncate64, "%s, %jd"), path, args->length); 931178439Srdivacky#endif 932178439Srdivacky 933178439Srdivacky error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 934178439Srdivacky LFREEPATH(path); 935178439Srdivacky return (error); 936178439Srdivacky} 937283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 938283415Sdchagin 939178439Srdivackyint 940156842Snetchildlinux_ftruncate(struct thread *td, struct linux_ftruncate_args *args) 941156842Snetchild{ 942156842Snetchild struct ftruncate_args /* { 943156842Snetchild int fd; 944156842Snetchild int pad; 945156842Snetchild off_t length; 946156842Snetchild } */ nuap; 947300411Sdchagin 948156842Snetchild nuap.fd = args->fd; 949156842Snetchild nuap.length = args->length; 950225617Skmacy return (sys_ftruncate(td, &nuap)); 951156842Snetchild} 952156842Snetchild 953156842Snetchildint 95483366Sjulianlinux_link(struct thread *td, struct linux_link_args *args) 95549662Smarcel{ 956102814Siedowse char *path, *to; 957102814Siedowse int error; 95849662Smarcel 959102814Siedowse LCONVPATHEXIST(td, args->path, &path); 960102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 961177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 962102814Siedowse if (to == NULL) { 963102814Siedowse LFREEPATH(path); 964102814Siedowse return (error); 965102814Siedowse } 96649662Smarcel 96749662Smarcel#ifdef DEBUG 96872543Sjlemon if (ldebug(link)) 969102814Siedowse printf(ARGS(link, "%s, %s"), path, to); 97049662Smarcel#endif 971274476Skib error = kern_linkat(td, AT_FDCWD, AT_FDCWD, path, to, UIO_SYSSPACE, 972274476Skib FOLLOW); 973102814Siedowse LFREEPATH(path); 974102814Siedowse LFREEPATH(to); 975102814Siedowse return (error); 97649662Smarcel} 97749788Smarcel 97853713Smarcelint 979177997Skiblinux_linkat(struct thread *td, struct linux_linkat_args *args) 980177997Skib{ 981177997Skib char *path, *to; 982227693Sed int error, olddfd, newdfd, follow; 983177997Skib 984227693Sed if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW) 985177997Skib return (EINVAL); 986177997Skib 987177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 988177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 989177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd); 990177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 991177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 992177997Skib if (to == NULL) { 993177997Skib LFREEPATH(path); 994177997Skib return (error); 995177997Skib } 996177997Skib 997177997Skib#ifdef DEBUG 998177997Skib if (ldebug(linkat)) 999177997Skib printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path, 1000227693Sed args->newdfd, to, args->flag); 1001177997Skib#endif 1002177997Skib 1003227693Sed follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW : 1004227693Sed FOLLOW; 1005227693Sed error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow); 1006177997Skib LFREEPATH(path); 1007177997Skib LFREEPATH(to); 1008177997Skib return (error); 1009177997Skib} 1010177997Skib 1011177997Skibint 101283366Sjulianlinux_fdatasync(td, uap) 101383366Sjulian struct thread *td; 101453713Smarcel struct linux_fdatasync_args *uap; 101553713Smarcel{ 101653713Smarcel 1017304987Skib return (kern_fsync(td, uap->fd, false)); 101853713Smarcel} 101963285Smarcel 102063285Smarcelint 102183366Sjulianlinux_pread(td, uap) 102283366Sjulian struct thread *td; 102363285Smarcel struct linux_pread_args *uap; 102463285Smarcel{ 102563285Smarcel struct pread_args bsd; 1026255219Spjd cap_rights_t rights; 1027162585Snetchild struct vnode *vp; 1028162585Snetchild int error; 102963285Smarcel 103063285Smarcel bsd.fd = uap->fd; 103163285Smarcel bsd.buf = uap->buf; 103263285Smarcel bsd.nbyte = uap->nbyte; 103363285Smarcel bsd.offset = uap->offset; 1034225617Skmacy error = sys_pread(td, &bsd); 1035162585Snetchild if (error == 0) { 1036247602Spjd /* This seems to violate POSIX but linux does it */ 1037255219Spjd error = fgetvp(td, uap->fd, 1038255219Spjd cap_rights_init(&rights, CAP_PREAD), &vp); 1039255219Spjd if (error != 0) 1040247602Spjd return (error); 1041162585Snetchild if (vp->v_type == VDIR) { 1042247602Spjd vrele(vp); 1043162585Snetchild return (EISDIR); 1044162585Snetchild } 1045162585Snetchild vrele(vp); 1046162585Snetchild } 1047162585Snetchild return (error); 104863285Smarcel} 104963285Smarcel 105063285Smarcelint 105183366Sjulianlinux_pwrite(td, uap) 105283366Sjulian struct thread *td; 105363285Smarcel struct linux_pwrite_args *uap; 105463285Smarcel{ 105563285Smarcel struct pwrite_args bsd; 105663285Smarcel 105763285Smarcel bsd.fd = uap->fd; 105863285Smarcel bsd.buf = uap->buf; 105963285Smarcel bsd.nbyte = uap->nbyte; 106063285Smarcel bsd.offset = uap->offset; 1061300411Sdchagin return (sys_pwrite(td, &bsd)); 106263285Smarcel} 106372538Sjlemon 106472538Sjlemonint 106583366Sjulianlinux_mount(struct thread *td, struct linux_mount_args *args) 106672538Sjlemon{ 1067111798Sdes char fstypename[MFSNAMELEN]; 1068111798Sdes char mntonname[MNAMELEN], mntfromname[MNAMELEN]; 106973286Sadrian int error; 107073286Sadrian int fsflags; 107172538Sjlemon 1072111798Sdes error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1, 107373286Sadrian NULL); 107472538Sjlemon if (error) 1075111798Sdes return (error); 1076127057Stjr error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL); 107772538Sjlemon if (error) 1078111798Sdes return (error); 1079127057Stjr error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL); 108072538Sjlemon if (error) 1081111798Sdes return (error); 108272538Sjlemon 108372538Sjlemon#ifdef DEBUG 108472538Sjlemon if (ldebug(mount)) 108572538Sjlemon printf(ARGS(mount, "%s, %s, %s"), 108672538Sjlemon fstypename, mntfromname, mntonname); 108772538Sjlemon#endif 108872538Sjlemon 108972538Sjlemon if (strcmp(fstypename, "ext2") == 0) { 1090127059Stjr strcpy(fstypename, "ext2fs"); 109172538Sjlemon } else if (strcmp(fstypename, "proc") == 0) { 1092127059Stjr strcpy(fstypename, "linprocfs"); 1093190445Sambrisko } else if (strcmp(fstypename, "vfat") == 0) { 1094190445Sambrisko strcpy(fstypename, "msdosfs"); 109572538Sjlemon } 109672538Sjlemon 109773286Sadrian fsflags = 0; 109872538Sjlemon 109972538Sjlemon if ((args->rwflag & 0xffff0000) == 0xc0ed0000) { 110072538Sjlemon /* 110172538Sjlemon * Linux SYNC flag is not included; the closest equivalent 110272538Sjlemon * FreeBSD has is !ASYNC, which is our default. 110372538Sjlemon */ 110472538Sjlemon if (args->rwflag & LINUX_MS_RDONLY) 1105111798Sdes fsflags |= MNT_RDONLY; 110672538Sjlemon if (args->rwflag & LINUX_MS_NOSUID) 1107111798Sdes fsflags |= MNT_NOSUID; 110872538Sjlemon if (args->rwflag & LINUX_MS_NOEXEC) 1109111798Sdes fsflags |= MNT_NOEXEC; 111072538Sjlemon if (args->rwflag & LINUX_MS_REMOUNT) 1111111798Sdes fsflags |= MNT_UPDATE; 111272538Sjlemon } 111372538Sjlemon 1114281689Strasz error = kernel_vmount(fsflags, 1115281689Strasz "fstype", fstypename, 1116281689Strasz "fspath", mntonname, 1117281689Strasz "from", mntfromname, 1118281689Strasz NULL); 1119127059Stjr return (error); 112072538Sjlemon} 112172538Sjlemon 1122283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 112372538Sjlemonint 112483366Sjulianlinux_oldumount(struct thread *td, struct linux_oldumount_args *args) 112572538Sjlemon{ 112683221Smarcel struct linux_umount_args args2; 112772538Sjlemon 112872538Sjlemon args2.path = args->path; 112972538Sjlemon args2.flags = 0; 113083366Sjulian return (linux_umount(td, &args2)); 113172538Sjlemon} 1132283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 113372538Sjlemon 113472538Sjlemonint 113583366Sjulianlinux_umount(struct thread *td, struct linux_umount_args *args) 113672538Sjlemon{ 113772538Sjlemon struct unmount_args bsd; 113872538Sjlemon 113972538Sjlemon bsd.path = args->path; 114072538Sjlemon bsd.flags = args->flags; /* XXX correct? */ 1141225617Skmacy return (sys_unmount(td, &bsd)); 114272538Sjlemon} 114383221Smarcel 114483221Smarcel/* 114583221Smarcel * fcntl family of syscalls 114683221Smarcel */ 114783221Smarcel 114883221Smarcelstruct l_flock { 114983221Smarcel l_short l_type; 115083221Smarcel l_short l_whence; 115183221Smarcel l_off_t l_start; 115283221Smarcel l_off_t l_len; 115383221Smarcel l_pid_t l_pid; 1154133816Stjr} 1155140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1156133816Stjr__packed 1157133816Stjr#endif 1158133816Stjr; 115983221Smarcel 116083221Smarcelstatic void 116183221Smarcellinux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock) 116283221Smarcel{ 116383221Smarcel switch (linux_flock->l_type) { 116483221Smarcel case LINUX_F_RDLCK: 116583221Smarcel bsd_flock->l_type = F_RDLCK; 116683221Smarcel break; 116783221Smarcel case LINUX_F_WRLCK: 116883221Smarcel bsd_flock->l_type = F_WRLCK; 116983221Smarcel break; 117083221Smarcel case LINUX_F_UNLCK: 117183221Smarcel bsd_flock->l_type = F_UNLCK; 117283221Smarcel break; 117383221Smarcel default: 117483221Smarcel bsd_flock->l_type = -1; 117583221Smarcel break; 117683221Smarcel } 117783221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 117883221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 117983221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 118083221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1181177633Sdfr bsd_flock->l_sysid = 0; 118283221Smarcel} 118383221Smarcel 118483221Smarcelstatic void 118583221Smarcelbsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock) 118683221Smarcel{ 118783221Smarcel switch (bsd_flock->l_type) { 118883221Smarcel case F_RDLCK: 118983221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 119083221Smarcel break; 119183221Smarcel case F_WRLCK: 119283221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 119383221Smarcel break; 119483221Smarcel case F_UNLCK: 119583221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 119683221Smarcel break; 119783221Smarcel } 119883221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 119983221Smarcel linux_flock->l_start = (l_off_t)bsd_flock->l_start; 120083221Smarcel linux_flock->l_len = (l_off_t)bsd_flock->l_len; 120183221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 120283221Smarcel} 120383221Smarcel 1204140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 120583221Smarcelstruct l_flock64 { 120683221Smarcel l_short l_type; 120783221Smarcel l_short l_whence; 120883221Smarcel l_loff_t l_start; 120983221Smarcel l_loff_t l_len; 121083221Smarcel l_pid_t l_pid; 1211133816Stjr} 1212140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1213133816Stjr__packed 1214133816Stjr#endif 1215133816Stjr; 121683221Smarcel 121783221Smarcelstatic void 121883221Smarcellinux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock) 121983221Smarcel{ 122083221Smarcel switch (linux_flock->l_type) { 122183221Smarcel case LINUX_F_RDLCK: 122283221Smarcel bsd_flock->l_type = F_RDLCK; 122383221Smarcel break; 122483221Smarcel case LINUX_F_WRLCK: 122583221Smarcel bsd_flock->l_type = F_WRLCK; 122683221Smarcel break; 122783221Smarcel case LINUX_F_UNLCK: 122883221Smarcel bsd_flock->l_type = F_UNLCK; 122983221Smarcel break; 123083221Smarcel default: 123183221Smarcel bsd_flock->l_type = -1; 123283221Smarcel break; 123383221Smarcel } 123483221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 123583221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 123683221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 123783221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1238177633Sdfr bsd_flock->l_sysid = 0; 123983221Smarcel} 124083221Smarcel 124183221Smarcelstatic void 124283221Smarcelbsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock) 124383221Smarcel{ 124483221Smarcel switch (bsd_flock->l_type) { 124583221Smarcel case F_RDLCK: 124683221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 124783221Smarcel break; 124883221Smarcel case F_WRLCK: 124983221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 125083221Smarcel break; 125183221Smarcel case F_UNLCK: 125283221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 125383221Smarcel break; 125483221Smarcel } 125583221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 125683221Smarcel linux_flock->l_start = (l_loff_t)bsd_flock->l_start; 125783221Smarcel linux_flock->l_len = (l_loff_t)bsd_flock->l_len; 125883221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 125983221Smarcel} 1260133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 126183221Smarcel 126283221Smarcelstatic int 1263283415Sdchaginfcntl_common(struct thread *td, struct linux_fcntl_args *args) 126483221Smarcel{ 1265107680Siedowse struct l_flock linux_flock; 1266107680Siedowse struct flock bsd_flock; 1267255219Spjd cap_rights_t rights; 126883221Smarcel struct file *fp; 1269102872Siedowse long arg; 127083221Smarcel int error, result; 127183221Smarcel 127283221Smarcel switch (args->cmd) { 127383221Smarcel case LINUX_F_DUPFD: 1274102872Siedowse return (kern_fcntl(td, args->fd, F_DUPFD, args->arg)); 127583221Smarcel 127683221Smarcel case LINUX_F_GETFD: 1277102872Siedowse return (kern_fcntl(td, args->fd, F_GETFD, 0)); 127883221Smarcel 127983221Smarcel case LINUX_F_SETFD: 1280102872Siedowse return (kern_fcntl(td, args->fd, F_SETFD, args->arg)); 128183221Smarcel 128283221Smarcel case LINUX_F_GETFL: 1283102872Siedowse error = kern_fcntl(td, args->fd, F_GETFL, 0); 128483366Sjulian result = td->td_retval[0]; 128583366Sjulian td->td_retval[0] = 0; 128683221Smarcel if (result & O_RDONLY) 128783366Sjulian td->td_retval[0] |= LINUX_O_RDONLY; 128883221Smarcel if (result & O_WRONLY) 128983366Sjulian td->td_retval[0] |= LINUX_O_WRONLY; 129083221Smarcel if (result & O_RDWR) 129183366Sjulian td->td_retval[0] |= LINUX_O_RDWR; 129283221Smarcel if (result & O_NDELAY) 129383366Sjulian td->td_retval[0] |= LINUX_O_NONBLOCK; 129483221Smarcel if (result & O_APPEND) 129583366Sjulian td->td_retval[0] |= LINUX_O_APPEND; 129683221Smarcel if (result & O_FSYNC) 129783366Sjulian td->td_retval[0] |= LINUX_O_SYNC; 129883221Smarcel if (result & O_ASYNC) 129983366Sjulian td->td_retval[0] |= LINUX_FASYNC; 1300144987Smdodd#ifdef LINUX_O_NOFOLLOW 1301144987Smdodd if (result & O_NOFOLLOW) 1302144987Smdodd td->td_retval[0] |= LINUX_O_NOFOLLOW; 1303144987Smdodd#endif 1304144987Smdodd#ifdef LINUX_O_DIRECT 1305144987Smdodd if (result & O_DIRECT) 1306144987Smdodd td->td_retval[0] |= LINUX_O_DIRECT; 1307144987Smdodd#endif 130883221Smarcel return (error); 130983221Smarcel 131083221Smarcel case LINUX_F_SETFL: 1311102872Siedowse arg = 0; 131283221Smarcel if (args->arg & LINUX_O_NDELAY) 1313102872Siedowse arg |= O_NONBLOCK; 131483221Smarcel if (args->arg & LINUX_O_APPEND) 1315102872Siedowse arg |= O_APPEND; 131683221Smarcel if (args->arg & LINUX_O_SYNC) 1317102872Siedowse arg |= O_FSYNC; 131883221Smarcel if (args->arg & LINUX_FASYNC) 1319102872Siedowse arg |= O_ASYNC; 1320144987Smdodd#ifdef LINUX_O_NOFOLLOW 1321144987Smdodd if (args->arg & LINUX_O_NOFOLLOW) 1322144987Smdodd arg |= O_NOFOLLOW; 1323144987Smdodd#endif 1324144987Smdodd#ifdef LINUX_O_DIRECT 1325144987Smdodd if (args->arg & LINUX_O_DIRECT) 1326144987Smdodd arg |= O_DIRECT; 1327144987Smdodd#endif 1328102872Siedowse return (kern_fcntl(td, args->fd, F_SETFL, arg)); 132983221Smarcel 1330107680Siedowse case LINUX_F_GETLK: 1331111797Sdes error = copyin((void *)args->arg, &linux_flock, 1332107680Siedowse sizeof(linux_flock)); 1333107680Siedowse if (error) 1334107680Siedowse return (error); 1335107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1336107680Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1337107680Siedowse if (error) 1338107680Siedowse return (error); 1339107680Siedowse bsd_to_linux_flock(&bsd_flock, &linux_flock); 1340111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1341107680Siedowse sizeof(linux_flock))); 1342107680Siedowse 1343107680Siedowse case LINUX_F_SETLK: 1344111797Sdes error = copyin((void *)args->arg, &linux_flock, 1345107680Siedowse sizeof(linux_flock)); 1346107680Siedowse if (error) 1347107680Siedowse return (error); 1348107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1349107680Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1350107680Siedowse (intptr_t)&bsd_flock)); 1351107680Siedowse 1352107680Siedowse case LINUX_F_SETLKW: 1353111797Sdes error = copyin((void *)args->arg, &linux_flock, 1354107680Siedowse sizeof(linux_flock)); 1355107680Siedowse if (error) 1356107680Siedowse return (error); 1357107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1358107680Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1359107680Siedowse (intptr_t)&bsd_flock)); 1360107680Siedowse 136183221Smarcel case LINUX_F_GETOWN: 1362102872Siedowse return (kern_fcntl(td, args->fd, F_GETOWN, 0)); 136383221Smarcel 136483221Smarcel case LINUX_F_SETOWN: 136583221Smarcel /* 136683221Smarcel * XXX some Linux applications depend on F_SETOWN having no 136783221Smarcel * significant effect for pipes (SIGIO is not delivered for 136883221Smarcel * pipes under Linux-2.2.35 at least). 136983221Smarcel */ 1370255219Spjd error = fget(td, args->fd, 1371255219Spjd cap_rights_init(&rights, CAP_FCNTL), &fp); 137289319Salfred if (error) 137389319Salfred return (error); 137489306Salfred if (fp->f_type == DTYPE_PIPE) { 137589306Salfred fdrop(fp, td); 137683221Smarcel return (EINVAL); 137789306Salfred } 137889306Salfred fdrop(fp, td); 137983221Smarcel 1380102872Siedowse return (kern_fcntl(td, args->fd, F_SETOWN, args->arg)); 1381283439Sdchagin 1382283439Sdchagin case LINUX_F_DUPFD_CLOEXEC: 1383283439Sdchagin return (kern_fcntl(td, args->fd, F_DUPFD_CLOEXEC, args->arg)); 138483221Smarcel } 138583221Smarcel 138683221Smarcel return (EINVAL); 138783221Smarcel} 138883221Smarcel 138983221Smarcelint 139083366Sjulianlinux_fcntl(struct thread *td, struct linux_fcntl_args *args) 139183221Smarcel{ 139283221Smarcel 139383221Smarcel#ifdef DEBUG 139483221Smarcel if (ldebug(fcntl)) 139583221Smarcel printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd); 139683221Smarcel#endif 139783221Smarcel 1398283415Sdchagin return (fcntl_common(td, args)); 139983221Smarcel} 140083221Smarcel 1401140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 140283221Smarcelint 140383366Sjulianlinux_fcntl64(struct thread *td, struct linux_fcntl64_args *args) 140483221Smarcel{ 140583221Smarcel struct l_flock64 linux_flock; 1406102872Siedowse struct flock bsd_flock; 1407283415Sdchagin struct linux_fcntl_args fcntl_args; 140883221Smarcel int error; 140983221Smarcel 141083221Smarcel#ifdef DEBUG 141183221Smarcel if (ldebug(fcntl64)) 141283221Smarcel printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd); 141383221Smarcel#endif 141483221Smarcel 141583221Smarcel switch (args->cmd) { 141699687Srobert case LINUX_F_GETLK64: 1417111797Sdes error = copyin((void *)args->arg, &linux_flock, 141883221Smarcel sizeof(linux_flock)); 141983221Smarcel if (error) 142083221Smarcel return (error); 1421102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1422102872Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 142383221Smarcel if (error) 142483221Smarcel return (error); 1425102872Siedowse bsd_to_linux_flock64(&bsd_flock, &linux_flock); 1426111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1427111797Sdes sizeof(linux_flock))); 142883221Smarcel 142999687Srobert case LINUX_F_SETLK64: 1430111797Sdes error = copyin((void *)args->arg, &linux_flock, 143183221Smarcel sizeof(linux_flock)); 143283221Smarcel if (error) 143383221Smarcel return (error); 1434102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1435102872Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1436102872Siedowse (intptr_t)&bsd_flock)); 143783221Smarcel 143899687Srobert case LINUX_F_SETLKW64: 1439111797Sdes error = copyin((void *)args->arg, &linux_flock, 144083221Smarcel sizeof(linux_flock)); 144183221Smarcel if (error) 144283221Smarcel return (error); 1443102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1444102872Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1445102872Siedowse (intptr_t)&bsd_flock)); 144683221Smarcel } 144783221Smarcel 1448283415Sdchagin fcntl_args.fd = args->fd; 1449283415Sdchagin fcntl_args.cmd = args->cmd; 1450283415Sdchagin fcntl_args.arg = args->arg; 1451283415Sdchagin return (fcntl_common(td, &fcntl_args)); 145283221Smarcel} 1453133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 145485022Smarcel 145585022Smarcelint 145685022Smarcellinux_chown(struct thread *td, struct linux_chown_args *args) 145785022Smarcel{ 1458102814Siedowse char *path; 1459102814Siedowse int error; 146085022Smarcel 1461102814Siedowse LCONVPATHEXIST(td, args->path, &path); 146285022Smarcel 146385022Smarcel#ifdef DEBUG 146485022Smarcel if (ldebug(chown)) 1465102814Siedowse printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid); 146685022Smarcel#endif 1467274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1468274476Skib args->gid, 0); 1469102814Siedowse LFREEPATH(path); 1470102814Siedowse return (error); 147185022Smarcel} 147285022Smarcel 147385022Smarcelint 1474177997Skiblinux_fchownat(struct thread *td, struct linux_fchownat_args *args) 1475177997Skib{ 1476177997Skib char *path; 1477227693Sed int error, dfd, flag; 1478177997Skib 1479177997Skib if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW) 1480177997Skib return (EINVAL); 1481177997Skib 1482177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 1483177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 1484177997Skib 1485177997Skib#ifdef DEBUG 1486177997Skib if (ldebug(fchownat)) 1487177997Skib printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid); 1488177997Skib#endif 1489177997Skib 1490227693Sed flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 : 1491177997Skib AT_SYMLINK_NOFOLLOW; 1492177997Skib error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid, 1493227693Sed flag); 1494177997Skib LFREEPATH(path); 1495177997Skib return (error); 1496177997Skib} 1497177997Skib 1498177997Skibint 149985022Smarcellinux_lchown(struct thread *td, struct linux_lchown_args *args) 150085022Smarcel{ 1501102814Siedowse char *path; 1502102814Siedowse int error; 150385022Smarcel 1504102814Siedowse LCONVPATHEXIST(td, args->path, &path); 150585022Smarcel 150685022Smarcel#ifdef DEBUG 150785022Smarcel if (ldebug(lchown)) 1508102814Siedowse printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid); 150985022Smarcel#endif 1510274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1511274476Skib args->gid, AT_SYMLINK_NOFOLLOW); 1512102814Siedowse LFREEPATH(path); 1513102814Siedowse return (error); 151485022Smarcel} 1515228957Sjhb 1516228957Sjhbstatic int 1517228957Sjhbconvert_fadvice(int advice) 1518228957Sjhb{ 1519228957Sjhb switch (advice) { 1520228957Sjhb case LINUX_POSIX_FADV_NORMAL: 1521228957Sjhb return (POSIX_FADV_NORMAL); 1522228957Sjhb case LINUX_POSIX_FADV_RANDOM: 1523228957Sjhb return (POSIX_FADV_RANDOM); 1524228957Sjhb case LINUX_POSIX_FADV_SEQUENTIAL: 1525228957Sjhb return (POSIX_FADV_SEQUENTIAL); 1526228957Sjhb case LINUX_POSIX_FADV_WILLNEED: 1527228957Sjhb return (POSIX_FADV_WILLNEED); 1528228957Sjhb case LINUX_POSIX_FADV_DONTNEED: 1529228957Sjhb return (POSIX_FADV_DONTNEED); 1530228957Sjhb case LINUX_POSIX_FADV_NOREUSE: 1531228957Sjhb return (POSIX_FADV_NOREUSE); 1532228957Sjhb default: 1533228957Sjhb return (-1); 1534228957Sjhb } 1535228957Sjhb} 1536228957Sjhb 1537228957Sjhbint 1538228957Sjhblinux_fadvise64(struct thread *td, struct linux_fadvise64_args *args) 1539228957Sjhb{ 1540228957Sjhb int advice; 1541228957Sjhb 1542228957Sjhb advice = convert_fadvice(args->advice); 1543228957Sjhb if (advice == -1) 1544228957Sjhb return (EINVAL); 1545228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1546228957Sjhb advice)); 1547228957Sjhb} 1548228957Sjhb 1549283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1550228957Sjhbint 1551228957Sjhblinux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args) 1552228957Sjhb{ 1553228957Sjhb int advice; 1554228957Sjhb 1555228957Sjhb advice = convert_fadvice(args->advice); 1556228957Sjhb if (advice == -1) 1557228957Sjhb return (EINVAL); 1558228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1559228957Sjhb advice)); 1560228957Sjhb} 1561283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1562234352Sjkim 1563234352Sjkimint 1564234352Sjkimlinux_pipe(struct thread *td, struct linux_pipe_args *args) 1565234352Sjkim{ 1566234352Sjkim int fildes[2]; 1567234352Sjkim int error; 1568234352Sjkim 1569234352Sjkim#ifdef DEBUG 1570234352Sjkim if (ldebug(pipe)) 1571234352Sjkim printf(ARGS(pipe, "*")); 1572234352Sjkim#endif 1573234352Sjkim 1574286021Sed error = kern_pipe(td, fildes, 0, NULL, NULL); 1575234352Sjkim if (error) 1576234352Sjkim return (error); 1577234352Sjkim 1578234352Sjkim /* XXX: Close descriptors on error. */ 1579234352Sjkim return (copyout(fildes, args->pipefds, sizeof(fildes))); 1580234352Sjkim} 1581234352Sjkim 1582234352Sjkimint 1583234352Sjkimlinux_pipe2(struct thread *td, struct linux_pipe2_args *args) 1584234352Sjkim{ 1585234352Sjkim int fildes[2]; 1586234352Sjkim int error, flags; 1587234352Sjkim 1588234352Sjkim#ifdef DEBUG 1589234352Sjkim if (ldebug(pipe2)) 1590234352Sjkim printf(ARGS(pipe2, "*, %d"), args->flags); 1591234352Sjkim#endif 1592234352Sjkim 1593234352Sjkim if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0) 1594234352Sjkim return (EINVAL); 1595234352Sjkim 1596234352Sjkim flags = 0; 1597234352Sjkim if ((args->flags & LINUX_O_NONBLOCK) != 0) 1598234352Sjkim flags |= O_NONBLOCK; 1599234352Sjkim if ((args->flags & LINUX_O_CLOEXEC) != 0) 1600234352Sjkim flags |= O_CLOEXEC; 1601286021Sed error = kern_pipe(td, fildes, flags, NULL, NULL); 1602234352Sjkim if (error) 1603234352Sjkim return (error); 1604234352Sjkim 1605234352Sjkim /* XXX: Close descriptors on error. */ 1606234352Sjkim return (copyout(fildes, args->pipefds, sizeof(fildes))); 1607234352Sjkim} 1608283399Sdchagin 1609283399Sdchaginint 1610283399Sdchaginlinux_dup3(struct thread *td, struct linux_dup3_args *args) 1611283399Sdchagin{ 1612283399Sdchagin int cmd; 1613283399Sdchagin intptr_t newfd; 1614283399Sdchagin 1615283399Sdchagin if (args->oldfd == args->newfd) 1616283399Sdchagin return (EINVAL); 1617283399Sdchagin if ((args->flags & ~LINUX_O_CLOEXEC) != 0) 1618283399Sdchagin return (EINVAL); 1619283399Sdchagin if (args->flags & LINUX_O_CLOEXEC) 1620283399Sdchagin cmd = F_DUP2FD_CLOEXEC; 1621283399Sdchagin else 1622283399Sdchagin cmd = F_DUP2FD; 1623283399Sdchagin 1624283399Sdchagin newfd = args->newfd; 1625283399Sdchagin return (kern_fcntl(td, args->oldfd, cmd, newfd)); 1626283399Sdchagin} 1627283465Sdchagin 1628283465Sdchaginint 1629283465Sdchaginlinux_fallocate(struct thread *td, struct linux_fallocate_args *args) 1630283465Sdchagin{ 1631283465Sdchagin 1632283465Sdchagin /* 1633283465Sdchagin * We emulate only posix_fallocate system call for which 1634283465Sdchagin * mode should be 0. 1635283465Sdchagin */ 1636283465Sdchagin if (args->mode != 0) 1637283465Sdchagin return (ENOSYS); 1638283465Sdchagin 1639283465Sdchagin return (kern_posix_fallocate(td, args->fd, args->offset, 1640283465Sdchagin args->len)); 1641283465Sdchagin} 1642