linux_file.c revision 286021
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: head/sys/compat/linux/linux_file.c 286021 2015-07-29 17:18:27Z ed $"); 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{ 72102814Siedowse char *path; 73102814Siedowse int error; 749313Ssos 75102814Siedowse LCONVPATHEXIST(td, args->path, &path); 7614331Speter 779313Ssos#ifdef DEBUG 7872543Sjlemon if (ldebug(creat)) 79102814Siedowse printf(ARGS(creat, "%s, %d"), path, args->mode); 809313Ssos#endif 81274476Skib error = kern_openat(td, AT_FDCWD, path, UIO_SYSSPACE, 82274476Skib O_WRONLY | O_CREAT | O_TRUNC, args->mode); 83102814Siedowse LFREEPATH(path); 84102814Siedowse return (error); 859313Ssos} 869313Ssos 87168014Sjulian 88168014Sjulianstatic int 89177997Skiblinux_common_open(struct thread *td, int dirfd, char *path, int l_flags, int mode) 909313Ssos{ 91255219Spjd cap_rights_t rights; 9283382Sjhb struct proc *p = td->td_proc; 93166085Skib struct file *fp; 94166085Skib int fd; 95102814Siedowse int bsd_flags, error; 9614331Speter 97102814Siedowse bsd_flags = 0; 98168014Sjulian switch (l_flags & LINUX_O_ACCMODE) { 99168014Sjulian case LINUX_O_WRONLY: 100102814Siedowse bsd_flags |= O_WRONLY; 101168014Sjulian break; 102168014Sjulian case LINUX_O_RDWR: 103102814Siedowse bsd_flags |= O_RDWR; 104168014Sjulian break; 105168014Sjulian default: 106168014Sjulian bsd_flags |= O_RDONLY; 107168014Sjulian } 108168014Sjulian if (l_flags & LINUX_O_NDELAY) 109102814Siedowse bsd_flags |= O_NONBLOCK; 110168014Sjulian if (l_flags & LINUX_O_APPEND) 111102814Siedowse bsd_flags |= O_APPEND; 112168014Sjulian if (l_flags & LINUX_O_SYNC) 113102814Siedowse bsd_flags |= O_FSYNC; 114168014Sjulian if (l_flags & LINUX_O_NONBLOCK) 115102814Siedowse bsd_flags |= O_NONBLOCK; 116168014Sjulian if (l_flags & LINUX_FASYNC) 117102814Siedowse bsd_flags |= O_ASYNC; 118168014Sjulian if (l_flags & LINUX_O_CREAT) 119102814Siedowse bsd_flags |= O_CREAT; 120168014Sjulian if (l_flags & LINUX_O_TRUNC) 121102814Siedowse bsd_flags |= O_TRUNC; 122168014Sjulian if (l_flags & LINUX_O_EXCL) 123102814Siedowse bsd_flags |= O_EXCL; 124168014Sjulian if (l_flags & LINUX_O_NOCTTY) 125102814Siedowse bsd_flags |= O_NOCTTY; 126168014Sjulian if (l_flags & LINUX_O_DIRECT) 127166085Skib bsd_flags |= O_DIRECT; 128168014Sjulian if (l_flags & LINUX_O_NOFOLLOW) 129166085Skib bsd_flags |= O_NOFOLLOW; 130205423Sed if (l_flags & LINUX_O_DIRECTORY) 131205423Sed bsd_flags |= O_DIRECTORY; 132166085Skib /* XXX LINUX_O_NOATIME: unable to be easily implemented. */ 1339313Ssos 134178036Srdivacky error = kern_openat(td, dirfd, path, UIO_SYSSPACE, bsd_flags, mode); 135281726Strasz if (error != 0) 136281726Strasz goto done; 137178036Srdivacky 138281726Strasz if (bsd_flags & O_NOCTTY) 139281726Strasz goto done; 140281726Strasz 141281726Strasz /* 142281726Strasz * XXX In between kern_open() and fget(), another process 143281726Strasz * having the same filedesc could use that fd without 144281726Strasz * checking below. 145281726Strasz */ 146281726Strasz fd = td->td_retval[0]; 147281726Strasz if (fget(td, fd, cap_rights_init(&rights, CAP_IOCTL), &fp) == 0) { 148281726Strasz if (fp->f_type != DTYPE_VNODE) { 149166085Skib fdrop(fp, td); 150281726Strasz goto done; 151166085Skib } 152281726Strasz sx_slock(&proctree_lock); 153281726Strasz PROC_LOCK(p); 154281726Strasz if (SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 155281726Strasz PROC_UNLOCK(p); 156281726Strasz sx_sunlock(&proctree_lock); 157281726Strasz /* XXXPJD: Verify if TIOCSCTTY is allowed. */ 158281726Strasz (void) fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, 159281726Strasz td->td_ucred, td); 160281726Strasz } else { 161281726Strasz PROC_UNLOCK(p); 162281726Strasz sx_sunlock(&proctree_lock); 163281726Strasz } 164281728Strasz fdrop(fp, td); 165166085Skib } 1669313Ssos 167281726Straszdone: 16814331Speter#ifdef DEBUG 169166085Skib if (ldebug(open)) 170166085Skib printf(LMSG("open returns error %d"), error); 17114331Speter#endif 172177997Skib LFREEPATH(path); 173177997Skib 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{ 198168014Sjulian char *path; 199168014Sjulian 200168014Sjulian if (args->flags & LINUX_O_CREAT) 201168014Sjulian LCONVPATHCREAT(td, args->path, &path); 202168014Sjulian else 203168014Sjulian LCONVPATHEXIST(td, args->path, &path); 204168014Sjulian 205168014Sjulian#ifdef DEBUG 206168014Sjulian if (ldebug(open)) 207168014Sjulian printf(ARGS(open, "%s, 0x%x, 0x%x"), 208168014Sjulian path, args->flags, args->mode); 209168014Sjulian#endif 210168014Sjulian 211178036Srdivacky return (linux_common_open(td, AT_FDCWD, path, args->flags, args->mode)); 212168014Sjulian} 213168014Sjulian 214168014Sjulianint 21583366Sjulianlinux_lseek(struct thread *td, struct linux_lseek_args *args) 2169313Ssos{ 2179313Ssos 21812858Speter struct lseek_args /* { 21912858Speter int fd; 2209313Ssos int pad; 22112858Speter off_t offset; 2229313Ssos int whence; 22312858Speter } */ tmp_args; 2249313Ssos int error; 2259313Ssos 2269313Ssos#ifdef DEBUG 22772543Sjlemon if (ldebug(lseek)) 22872543Sjlemon printf(ARGS(lseek, "%d, %ld, %d"), 22983221Smarcel args->fdes, (long)args->off, args->whence); 2309313Ssos#endif 23112858Speter tmp_args.fd = args->fdes; 23212858Speter tmp_args.offset = (off_t)args->off; 2339313Ssos tmp_args.whence = args->whence; 234225617Skmacy error = sys_lseek(td, &tmp_args); 2359313Ssos return error; 2369313Ssos} 2379313Ssos 238283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 23914331Speterint 24083366Sjulianlinux_llseek(struct thread *td, struct linux_llseek_args *args) 24114331Speter{ 24214331Speter struct lseek_args bsd_args; 24314331Speter int error; 24414331Speter off_t off; 24514331Speter 24614331Speter#ifdef DEBUG 24772543Sjlemon if (ldebug(llseek)) 24872543Sjlemon printf(ARGS(llseek, "%d, %d:%d, %d"), 24972543Sjlemon args->fd, args->ohigh, args->olow, args->whence); 25014331Speter#endif 25114331Speter off = (args->olow) | (((off_t) args->ohigh) << 32); 25214331Speter 25314331Speter bsd_args.fd = args->fd; 25414331Speter bsd_args.offset = off; 25514331Speter bsd_args.whence = args->whence; 25614331Speter 257225617Skmacy if ((error = sys_lseek(td, &bsd_args))) 25814331Speter return error; 25914331Speter 260111797Sdes if ((error = copyout(td->td_retval, args->res, sizeof (off_t)))) 26114331Speter return error; 26214331Speter 26383366Sjulian td->td_retval[0] = 0; 26414331Speter return 0; 26514331Speter} 26614331Speter 2679313Ssosint 26883366Sjulianlinux_readdir(struct thread *td, struct linux_readdir_args *args) 2699313Ssos{ 27014331Speter struct linux_getdents_args lda; 27114331Speter 27214331Speter lda.fd = args->fd; 27314331Speter lda.dent = args->dent; 27414331Speter lda.count = 1; 27583366Sjulian return linux_getdents(td, &lda); 27614331Speter} 277283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 27814331Speter 27983221Smarcel/* 28083221Smarcel * Note that linux_getdents(2) and linux_getdents64(2) have the same 28183221Smarcel * arguments. They only differ in the definition of struct dirent they 28283221Smarcel * operate on. We use this to common the code, with the exception of 28383221Smarcel * accessing struct dirent. Note that linux_readdir(2) is implemented 28483221Smarcel * by means of linux_getdents(2). In this case we never operate on 28583221Smarcel * struct dirent64 and thus don't need to handle it... 28683221Smarcel */ 28783221Smarcel 28883221Smarcelstruct l_dirent { 289179651Srdivacky l_ulong d_ino; 29083221Smarcel l_off_t d_off; 29183221Smarcel l_ushort d_reclen; 29283221Smarcel char d_name[LINUX_NAME_MAX + 1]; 29383221Smarcel}; 29483221Smarcel 29583221Smarcelstruct l_dirent64 { 29683221Smarcel uint64_t d_ino; 29783221Smarcel int64_t d_off; 29883221Smarcel l_ushort d_reclen; 29983221Smarcel u_char d_type; 30083221Smarcel char d_name[LINUX_NAME_MAX + 1]; 30183221Smarcel}; 30283221Smarcel 303182892Srdivacky/* 304182892Srdivacky * Linux uses the last byte in the dirent buffer to store d_type, 305182892Srdivacky * at least glibc-2.7 requires it. That is why l_dirent is padded with 2 bytes. 306182892Srdivacky */ 307182892Srdivacky#define LINUX_RECLEN(namlen) \ 308182892Srdivacky roundup((offsetof(struct l_dirent, d_name) + (namlen) + 2), \ 309182892Srdivacky sizeof(l_ulong)) 31083221Smarcel 311182892Srdivacky#define LINUX_RECLEN64(namlen) \ 312182892Srdivacky roundup((offsetof(struct l_dirent64, d_name) + (namlen) + 1), \ 313182892Srdivacky sizeof(uint64_t)) 314182892Srdivacky 315182892Srdivacky#define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \ 316182892Srdivacky LINUX_RECLEN64(LINUX_NAME_MAX)) 31783221Smarcel#define LINUX_DIRBLKSIZ 512 31883221Smarcel 31983221Smarcelstatic int 32083366Sjuliangetdents_common(struct thread *td, struct linux_getdents64_args *args, 32183221Smarcel int is64bit) 32214331Speter{ 323111798Sdes struct dirent *bdp; 32483221Smarcel struct vnode *vp; 32583221Smarcel caddr_t inp, buf; /* BSD-format */ 32683221Smarcel int len, reclen; /* BSD-format */ 32783221Smarcel caddr_t outp; /* Linux-format */ 32883221Smarcel int resid, linuxreclen=0; /* Linux-format */ 329182892Srdivacky caddr_t lbuf; /* Linux-format */ 330255219Spjd cap_rights_t rights; 33183221Smarcel struct file *fp; 33283221Smarcel struct uio auio; 33383221Smarcel struct iovec aiov; 33483221Smarcel off_t off; 335182892Srdivacky struct l_dirent *linux_dirent; 336182892Srdivacky struct l_dirent64 *linux_dirent64; 33783221Smarcel int buflen, error, eofflag, nbytes, justone; 33883221Smarcel u_long *cookies = NULL, *cookiep; 339241896Skib int ncookies; 3409313Ssos 341160276Sjhb nbytes = args->count; 342160276Sjhb if (nbytes == 1) { 343160276Sjhb /* readdir(2) case. Always struct dirent. */ 344160276Sjhb if (is64bit) 345160276Sjhb return (EINVAL); 346188572Snetchild nbytes = sizeof(*linux_dirent); 347160276Sjhb justone = 1; 348160276Sjhb } else 349160276Sjhb justone = 0; 350160276Sjhb 351284446Smjg error = getvnode(td, args->fd, cap_rights_init(&rights, CAP_READ), &fp); 352255219Spjd if (error != 0) 35383221Smarcel return (error); 3549313Ssos 35589306Salfred if ((fp->f_flag & FREAD) == 0) { 35689306Salfred fdrop(fp, td); 35783221Smarcel return (EBADF); 35889306Salfred } 3599313Ssos 360238029Skib off = foffset_lock(fp, 0); 361116678Sphk vp = fp->f_vnode; 36289306Salfred if (vp->v_type != VDIR) { 363238029Skib foffset_unlock(fp, off, 0); 36489306Salfred fdrop(fp, td); 36583221Smarcel return (EINVAL); 36689306Salfred } 3679313Ssos 3689313Ssos 36983221Smarcel buflen = max(LINUX_DIRBLKSIZ, nbytes); 37083221Smarcel buflen = min(buflen, MAXBSIZE); 371283427Sdchagin buf = malloc(buflen, M_LINUX, M_WAITOK); 372283427Sdchagin lbuf = malloc(LINUX_MAXRECLEN, M_LINUX, M_WAITOK | M_ZERO); 373188588Sjhb vn_lock(vp, LK_SHARED | LK_RETRY); 37483221Smarcel 37583221Smarcel aiov.iov_base = buf; 37683221Smarcel aiov.iov_len = buflen; 37783221Smarcel auio.uio_iov = &aiov; 37883221Smarcel auio.uio_iovcnt = 1; 37983221Smarcel auio.uio_rw = UIO_READ; 38083221Smarcel auio.uio_segflg = UIO_SYSSPACE; 38183366Sjulian auio.uio_td = td; 38283221Smarcel auio.uio_resid = buflen; 38383221Smarcel auio.uio_offset = off; 3849313Ssos 385101189Srwatson#ifdef MAC 386101189Srwatson /* 387101189Srwatson * Do directory search MAC check using non-cached credentials. 388101189Srwatson */ 389172930Srwatson if ((error = mac_vnode_check_readdir(td->td_ucred, vp))) 390101189Srwatson goto out; 391101189Srwatson#endif /* MAC */ 39283221Smarcel if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 39383221Smarcel &cookies))) 39483221Smarcel goto out; 3959313Ssos 39683221Smarcel inp = buf; 39783221Smarcel outp = (caddr_t)args->dirent; 39883221Smarcel resid = nbytes; 39983221Smarcel if ((len = buflen - auio.uio_resid) <= 0) 40083221Smarcel goto eof; 4019313Ssos 40283221Smarcel cookiep = cookies; 40324654Sdfr 40483221Smarcel if (cookies) { 40583221Smarcel /* 40683221Smarcel * When using cookies, the vfs has the option of reading from 40783221Smarcel * a different offset than that supplied (UFS truncates the 40883221Smarcel * offset to a block boundary to make sure that it never reads 40983221Smarcel * partway through a directory entry, even if the directory 41083221Smarcel * has been compacted). 41183221Smarcel */ 41283221Smarcel while (len > 0 && ncookies > 0 && *cookiep <= off) { 41383221Smarcel bdp = (struct dirent *) inp; 41483221Smarcel len -= bdp->d_reclen; 41583221Smarcel inp += bdp->d_reclen; 41683221Smarcel cookiep++; 41783221Smarcel ncookies--; 41883221Smarcel } 41924654Sdfr } 42024654Sdfr 42183221Smarcel while (len > 0) { 42283221Smarcel if (cookiep && ncookies == 0) 42383221Smarcel break; 42483221Smarcel bdp = (struct dirent *) inp; 42583221Smarcel reclen = bdp->d_reclen; 42683221Smarcel if (reclen & 3) { 42783221Smarcel error = EFAULT; 42883221Smarcel goto out; 42983221Smarcel } 43083221Smarcel 43183221Smarcel if (bdp->d_fileno == 0) { 43283221Smarcel inp += reclen; 43383221Smarcel if (cookiep) { 43483221Smarcel off = *cookiep++; 43583221Smarcel ncookies--; 43683221Smarcel } else 43783221Smarcel off += reclen; 43883221Smarcel 43983221Smarcel len -= reclen; 44083221Smarcel continue; 44183221Smarcel } 44283221Smarcel 44383221Smarcel linuxreclen = (is64bit) 444182892Srdivacky ? LINUX_RECLEN64(bdp->d_namlen) 445182892Srdivacky : LINUX_RECLEN(bdp->d_namlen); 44683221Smarcel 44783221Smarcel if (reclen > len || resid < linuxreclen) { 44883221Smarcel outp++; 44983221Smarcel break; 45083221Smarcel } 45183221Smarcel 45283221Smarcel if (justone) { 45383221Smarcel /* readdir(2) case. */ 454182892Srdivacky linux_dirent = (struct l_dirent*)lbuf; 455182892Srdivacky linux_dirent->d_ino = bdp->d_fileno; 456182892Srdivacky linux_dirent->d_off = (l_off_t)linuxreclen; 457182892Srdivacky linux_dirent->d_reclen = (l_ushort)bdp->d_namlen; 458182892Srdivacky strlcpy(linux_dirent->d_name, bdp->d_name, 459182892Srdivacky linuxreclen - offsetof(struct l_dirent, d_name)); 460182892Srdivacky error = copyout(linux_dirent, outp, linuxreclen); 46183221Smarcel } 462182892Srdivacky if (is64bit) { 463182892Srdivacky linux_dirent64 = (struct l_dirent64*)lbuf; 464182892Srdivacky linux_dirent64->d_ino = bdp->d_fileno; 465182892Srdivacky linux_dirent64->d_off = (cookiep) 466182892Srdivacky ? (l_off_t)*cookiep 467182892Srdivacky : (l_off_t)(off + reclen); 468182892Srdivacky linux_dirent64->d_reclen = (l_ushort)linuxreclen; 469182892Srdivacky linux_dirent64->d_type = bdp->d_type; 470182892Srdivacky strlcpy(linux_dirent64->d_name, bdp->d_name, 471182892Srdivacky linuxreclen - offsetof(struct l_dirent64, d_name)); 472182892Srdivacky error = copyout(linux_dirent64, outp, linuxreclen); 473182892Srdivacky } else if (!justone) { 474182892Srdivacky linux_dirent = (struct l_dirent*)lbuf; 475182892Srdivacky linux_dirent->d_ino = bdp->d_fileno; 476182892Srdivacky linux_dirent->d_off = (cookiep) 477182892Srdivacky ? (l_off_t)*cookiep 478182892Srdivacky : (l_off_t)(off + reclen); 479182892Srdivacky linux_dirent->d_reclen = (l_ushort)linuxreclen; 480182892Srdivacky /* 481182892Srdivacky * Copy d_type to last byte of l_dirent buffer 482182892Srdivacky */ 483182892Srdivacky lbuf[linuxreclen-1] = bdp->d_type; 484182892Srdivacky strlcpy(linux_dirent->d_name, bdp->d_name, 485182892Srdivacky linuxreclen - offsetof(struct l_dirent, d_name)-1); 486182892Srdivacky error = copyout(linux_dirent, outp, linuxreclen); 487182892Srdivacky } 488182892Srdivacky 48983221Smarcel if (error) 49083221Smarcel goto out; 49183221Smarcel 49283221Smarcel inp += reclen; 49383221Smarcel if (cookiep) { 49483221Smarcel off = *cookiep++; 49583221Smarcel ncookies--; 49683221Smarcel } else 49783221Smarcel off += reclen; 49883221Smarcel 49983221Smarcel outp += linuxreclen; 50083221Smarcel resid -= linuxreclen; 50183221Smarcel len -= reclen; 50283221Smarcel if (justone) 50383221Smarcel break; 50410355Sswallace } 5059313Ssos 506217578Skib if (outp == (caddr_t)args->dirent) { 507217578Skib nbytes = resid; 508217578Skib goto eof; 509217578Skib } 5109313Ssos 51183221Smarcel if (justone) 51283221Smarcel nbytes = resid + linuxreclen; 51310355Sswallace 5149313Ssoseof: 51583366Sjulian td->td_retval[0] = nbytes - resid; 51683221Smarcel 5179313Ssosout: 518247764Seadler free(cookies, M_TEMP); 51983221Smarcel 520175294Sattilio VOP_UNLOCK(vp, 0); 521238029Skib foffset_unlock(fp, off, 0); 52289306Salfred fdrop(fp, td); 523283427Sdchagin free(buf, M_LINUX); 524283427Sdchagin free(lbuf, M_LINUX); 52583221Smarcel return (error); 5269313Ssos} 52714331Speter 52883221Smarcelint 52983366Sjulianlinux_getdents(struct thread *td, struct linux_getdents_args *args) 53083221Smarcel{ 53183221Smarcel 53283221Smarcel#ifdef DEBUG 53383221Smarcel if (ldebug(getdents)) 53483221Smarcel printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count); 53583221Smarcel#endif 53683221Smarcel 53783366Sjulian return (getdents_common(td, (struct linux_getdents64_args*)args, 0)); 53883221Smarcel} 53983221Smarcel 54083221Smarcelint 54183366Sjulianlinux_getdents64(struct thread *td, struct linux_getdents64_args *args) 54283221Smarcel{ 54383221Smarcel 54483221Smarcel#ifdef DEBUG 54583221Smarcel if (ldebug(getdents64)) 54683221Smarcel printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count); 54783221Smarcel#endif 54883221Smarcel 54983366Sjulian return (getdents_common(td, args, 1)); 55083221Smarcel} 55183221Smarcel 55214331Speter/* 55314331Speter * These exist mainly for hooks for doing /compat/linux translation. 55414331Speter */ 55514331Speter 55614331Speterint 55783366Sjulianlinux_access(struct thread *td, struct linux_access_args *args) 55814331Speter{ 559102814Siedowse char *path; 560102814Siedowse int error; 56114331Speter 562162585Snetchild /* linux convention */ 563227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 564162585Snetchild return (EINVAL); 565162585Snetchild 566102814Siedowse LCONVPATHEXIST(td, args->path, &path); 56714331Speter 56814331Speter#ifdef DEBUG 56972543Sjlemon if (ldebug(access)) 570227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 57114331Speter#endif 572274476Skib error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0, 573274476Skib args->amode); 574102814Siedowse LFREEPATH(path); 575162585Snetchild 576102814Siedowse return (error); 57714331Speter} 57814331Speter 57914331Speterint 580177997Skiblinux_faccessat(struct thread *td, struct linux_faccessat_args *args) 581177997Skib{ 582177997Skib char *path; 583283428Sdchagin int error, dfd; 584177997Skib 585177997Skib /* linux convention */ 586227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 587177997Skib return (EINVAL); 588177997Skib 589177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 590177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 591177997Skib 592177997Skib#ifdef DEBUG 593177997Skib if (ldebug(access)) 594227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 595177997Skib#endif 596177997Skib 597283428Sdchagin error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode); 598177997Skib LFREEPATH(path); 599177997Skib 600177997Skib return (error); 601177997Skib} 602177997Skib 603177997Skibint 60483366Sjulianlinux_unlink(struct thread *td, struct linux_unlink_args *args) 60514331Speter{ 606102814Siedowse char *path; 607102814Siedowse int error; 608162201Snetchild struct stat st; 60914331Speter 610102814Siedowse LCONVPATHEXIST(td, args->path, &path); 61114331Speter 61214331Speter#ifdef DEBUG 61372543Sjlemon if (ldebug(unlink)) 614102814Siedowse printf(ARGS(unlink, "%s"), path); 61514331Speter#endif 61614331Speter 617274476Skib error = kern_unlinkat(td, AT_FDCWD, path, UIO_SYSSPACE, 0); 618274476Skib if (error == EPERM) { 619162201Snetchild /* Introduce POSIX noncompliant behaviour of Linux */ 620274476Skib if (kern_statat(td, 0, AT_FDCWD, path, UIO_SYSSPACE, &st, 621274476Skib NULL) == 0) { 622162201Snetchild if (S_ISDIR(st.st_mode)) 623162201Snetchild error = EISDIR; 624274476Skib } 625274476Skib } 626102814Siedowse LFREEPATH(path); 627102814Siedowse return (error); 62814331Speter} 62914331Speter 63014331Speterint 631177997Skiblinux_unlinkat(struct thread *td, struct linux_unlinkat_args *args) 632177997Skib{ 633177997Skib char *path; 634177997Skib int error, dfd; 635177997Skib struct stat st; 636177997Skib 637177997Skib if (args->flag & ~LINUX_AT_REMOVEDIR) 638177997Skib return (EINVAL); 639177997Skib 640177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 641177997Skib LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); 642177997Skib 643177997Skib#ifdef DEBUG 644177997Skib if (ldebug(unlinkat)) 645177997Skib printf(ARGS(unlinkat, "%s"), path); 646177997Skib#endif 647177997Skib 648177997Skib if (args->flag & LINUX_AT_REMOVEDIR) 649177997Skib error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE); 650177997Skib else 651202113Smckusick error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0); 652177997Skib if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) { 653177997Skib /* Introduce POSIX noncompliant behaviour of Linux */ 654177997Skib if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path, 655274476Skib UIO_SYSSPACE, &st, NULL) == 0 && S_ISDIR(st.st_mode)) 656177997Skib error = EISDIR; 657177997Skib } 658177997Skib LFREEPATH(path); 659177997Skib return (error); 660177997Skib} 661177997Skibint 66283366Sjulianlinux_chdir(struct thread *td, struct linux_chdir_args *args) 66314331Speter{ 664102814Siedowse char *path; 665102814Siedowse int error; 66614331Speter 667102814Siedowse LCONVPATHEXIST(td, args->path, &path); 66814331Speter 66914331Speter#ifdef DEBUG 67072543Sjlemon if (ldebug(chdir)) 671102814Siedowse printf(ARGS(chdir, "%s"), path); 67214331Speter#endif 673102814Siedowse error = kern_chdir(td, path, UIO_SYSSPACE); 674102814Siedowse LFREEPATH(path); 675102814Siedowse return (error); 67614331Speter} 67714331Speter 67814331Speterint 67983366Sjulianlinux_chmod(struct thread *td, struct linux_chmod_args *args) 68014331Speter{ 681102814Siedowse char *path; 682102814Siedowse int error; 68314331Speter 684102814Siedowse LCONVPATHEXIST(td, args->path, &path); 68514331Speter 68614331Speter#ifdef DEBUG 68772543Sjlemon if (ldebug(chmod)) 688102814Siedowse printf(ARGS(chmod, "%s, %d"), path, args->mode); 68914331Speter#endif 690274476Skib error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE, 691274476Skib args->mode, 0); 692102814Siedowse LFREEPATH(path); 693102814Siedowse return (error); 69414331Speter} 69514331Speter 69614331Speterint 697177997Skiblinux_fchmodat(struct thread *td, struct linux_fchmodat_args *args) 698177997Skib{ 699177997Skib char *path; 700177997Skib int error, dfd; 701177997Skib 702177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 703177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 704177997Skib 705177997Skib#ifdef DEBUG 706177997Skib if (ldebug(fchmodat)) 707177997Skib printf(ARGS(fchmodat, "%s, %d"), path, args->mode); 708177997Skib#endif 709177997Skib 710177997Skib error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0); 711177997Skib LFREEPATH(path); 712177997Skib return (error); 713177997Skib} 714177997Skib 715177997Skibint 71683366Sjulianlinux_mkdir(struct thread *td, struct linux_mkdir_args *args) 71714331Speter{ 718102814Siedowse char *path; 719102814Siedowse int error; 72014331Speter 721102814Siedowse LCONVPATHCREAT(td, args->path, &path); 72214331Speter 72314331Speter#ifdef DEBUG 72472543Sjlemon if (ldebug(mkdir)) 725102814Siedowse printf(ARGS(mkdir, "%s, %d"), path, args->mode); 72614331Speter#endif 727274476Skib error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, args->mode); 728102814Siedowse LFREEPATH(path); 729102814Siedowse return (error); 73014331Speter} 73114331Speter 73214331Speterint 733177997Skiblinux_mkdirat(struct thread *td, struct linux_mkdirat_args *args) 734177997Skib{ 735177997Skib char *path; 736177997Skib int error, dfd; 737177997Skib 738177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 739177997Skib LCONVPATHCREAT_AT(td, args->pathname, &path, dfd); 740177997Skib 741177997Skib#ifdef DEBUG 742177997Skib if (ldebug(mkdirat)) 743177997Skib printf(ARGS(mkdirat, "%s, %d"), path, args->mode); 744177997Skib#endif 745177997Skib error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode); 746177997Skib LFREEPATH(path); 747177997Skib return (error); 748177997Skib} 749177997Skib 750177997Skibint 75183366Sjulianlinux_rmdir(struct thread *td, struct linux_rmdir_args *args) 75214331Speter{ 753102814Siedowse char *path; 754102814Siedowse int error; 75514331Speter 756102814Siedowse LCONVPATHEXIST(td, args->path, &path); 75714331Speter 75814331Speter#ifdef DEBUG 75972543Sjlemon if (ldebug(rmdir)) 760102814Siedowse printf(ARGS(rmdir, "%s"), path); 76114331Speter#endif 762274476Skib error = kern_rmdirat(td, AT_FDCWD, path, UIO_SYSSPACE); 763102814Siedowse LFREEPATH(path); 764102814Siedowse return (error); 76514331Speter} 76614331Speter 76714331Speterint 76883366Sjulianlinux_rename(struct thread *td, struct linux_rename_args *args) 76914331Speter{ 770102814Siedowse char *from, *to; 771102814Siedowse int error; 77214331Speter 773102814Siedowse LCONVPATHEXIST(td, args->from, &from); 774102814Siedowse /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 775177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 776102814Siedowse if (to == NULL) { 777102814Siedowse LFREEPATH(from); 778102814Siedowse return (error); 779102814Siedowse } 78014331Speter 78114331Speter#ifdef DEBUG 78272543Sjlemon if (ldebug(rename)) 783102814Siedowse printf(ARGS(rename, "%s, %s"), from, to); 78414331Speter#endif 785274476Skib error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE); 786102814Siedowse LFREEPATH(from); 787102814Siedowse LFREEPATH(to); 788102814Siedowse return (error); 78914331Speter} 79014331Speter 79114331Speterint 792177997Skiblinux_renameat(struct thread *td, struct linux_renameat_args *args) 793177997Skib{ 794177997Skib char *from, *to; 795177997Skib int error, olddfd, newdfd; 796177997Skib 797177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 798177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 799177997Skib LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd); 800177997Skib /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 801177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 802177997Skib if (to == NULL) { 803177997Skib LFREEPATH(from); 804177997Skib return (error); 805177997Skib } 806177997Skib 807177997Skib#ifdef DEBUG 808177997Skib if (ldebug(renameat)) 809177997Skib printf(ARGS(renameat, "%s, %s"), from, to); 810177997Skib#endif 811177997Skib error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE); 812177997Skib LFREEPATH(from); 813177997Skib LFREEPATH(to); 814177997Skib return (error); 815177997Skib} 816177997Skib 817177997Skibint 81883366Sjulianlinux_symlink(struct thread *td, struct linux_symlink_args *args) 81914331Speter{ 820102814Siedowse char *path, *to; 821102814Siedowse int error; 82214331Speter 823102814Siedowse LCONVPATHEXIST(td, args->path, &path); 824102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 825177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 826102814Siedowse if (to == NULL) { 827102814Siedowse LFREEPATH(path); 828102814Siedowse return (error); 829102814Siedowse } 83014331Speter 83114331Speter#ifdef DEBUG 83272543Sjlemon if (ldebug(symlink)) 833102814Siedowse printf(ARGS(symlink, "%s, %s"), path, to); 83414331Speter#endif 835274476Skib error = kern_symlinkat(td, path, AT_FDCWD, to, UIO_SYSSPACE); 836102814Siedowse LFREEPATH(path); 837102814Siedowse LFREEPATH(to); 838102814Siedowse return (error); 83914331Speter} 84014331Speter 84114331Speterint 842177997Skiblinux_symlinkat(struct thread *td, struct linux_symlinkat_args *args) 843177997Skib{ 844177997Skib char *path, *to; 845177997Skib int error, dfd; 846177997Skib 847177997Skib dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 848177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, dfd); 849177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 850177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd); 851177997Skib if (to == NULL) { 852177997Skib LFREEPATH(path); 853177997Skib return (error); 854177997Skib } 855177997Skib 856177997Skib#ifdef DEBUG 857177997Skib if (ldebug(symlinkat)) 858177997Skib printf(ARGS(symlinkat, "%s, %s"), path, to); 859177997Skib#endif 860177997Skib 861177997Skib error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE); 862177997Skib LFREEPATH(path); 863177997Skib LFREEPATH(to); 864177997Skib return (error); 865177997Skib} 866177997Skib 867177997Skibint 86883366Sjulianlinux_readlink(struct thread *td, struct linux_readlink_args *args) 86914331Speter{ 870102814Siedowse char *name; 871102814Siedowse int error; 87214331Speter 873102814Siedowse LCONVPATHEXIST(td, args->name, &name); 87414331Speter 87514331Speter#ifdef DEBUG 87672543Sjlemon if (ldebug(readlink)) 877102814Siedowse printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf, 878102814Siedowse args->count); 87914331Speter#endif 880274476Skib error = kern_readlinkat(td, AT_FDCWD, name, UIO_SYSSPACE, 881274476Skib args->buf, UIO_USERSPACE, args->count); 882102814Siedowse LFREEPATH(name); 883102814Siedowse return (error); 88414331Speter} 88514331Speter 88614331Speterint 887177997Skiblinux_readlinkat(struct thread *td, struct linux_readlinkat_args *args) 888177997Skib{ 889177997Skib char *name; 890177997Skib int error, dfd; 891177997Skib 892177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 893177997Skib LCONVPATHEXIST_AT(td, args->path, &name, dfd); 894177997Skib 895177997Skib#ifdef DEBUG 896177997Skib if (ldebug(readlinkat)) 897177997Skib printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf, 898177997Skib args->bufsiz); 899177997Skib#endif 900177997Skib 901177997Skib error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf, 902177997Skib UIO_USERSPACE, args->bufsiz); 903177997Skib LFREEPATH(name); 904177997Skib return (error); 905177997Skib} 906178439Srdivacky 907177997Skibint 90883366Sjulianlinux_truncate(struct thread *td, struct linux_truncate_args *args) 90914331Speter{ 910102814Siedowse char *path; 911102814Siedowse int error; 91214331Speter 913102814Siedowse LCONVPATHEXIST(td, args->path, &path); 91414331Speter 91514331Speter#ifdef DEBUG 91672543Sjlemon if (ldebug(truncate)) 917102814Siedowse printf(ARGS(truncate, "%s, %ld"), path, (long)args->length); 91814331Speter#endif 91914331Speter 920102814Siedowse error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 921102814Siedowse LFREEPATH(path); 922102814Siedowse return (error); 92314331Speter} 92414331Speter 925283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 92649662Smarcelint 927178439Srdivackylinux_truncate64(struct thread *td, struct linux_truncate64_args *args) 928178439Srdivacky{ 929178439Srdivacky char *path; 930178439Srdivacky int error; 931178439Srdivacky 932178439Srdivacky LCONVPATHEXIST(td, args->path, &path); 933178439Srdivacky 934178439Srdivacky#ifdef DEBUG 935178439Srdivacky if (ldebug(truncate64)) 936178439Srdivacky printf(ARGS(truncate64, "%s, %jd"), path, args->length); 937178439Srdivacky#endif 938178439Srdivacky 939178439Srdivacky error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 940178439Srdivacky LFREEPATH(path); 941178439Srdivacky return (error); 942178439Srdivacky} 943283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 944283415Sdchagin 945178439Srdivackyint 946156842Snetchildlinux_ftruncate(struct thread *td, struct linux_ftruncate_args *args) 947156842Snetchild{ 948156842Snetchild struct ftruncate_args /* { 949156842Snetchild int fd; 950156842Snetchild int pad; 951156842Snetchild off_t length; 952156842Snetchild } */ nuap; 953156842Snetchild 954156842Snetchild nuap.fd = args->fd; 955156842Snetchild nuap.length = args->length; 956225617Skmacy return (sys_ftruncate(td, &nuap)); 957156842Snetchild} 958156842Snetchild 959156842Snetchildint 96083366Sjulianlinux_link(struct thread *td, struct linux_link_args *args) 96149662Smarcel{ 962102814Siedowse char *path, *to; 963102814Siedowse int error; 96449662Smarcel 965102814Siedowse LCONVPATHEXIST(td, args->path, &path); 966102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 967177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 968102814Siedowse if (to == NULL) { 969102814Siedowse LFREEPATH(path); 970102814Siedowse return (error); 971102814Siedowse } 97249662Smarcel 97349662Smarcel#ifdef DEBUG 97472543Sjlemon if (ldebug(link)) 975102814Siedowse printf(ARGS(link, "%s, %s"), path, to); 97649662Smarcel#endif 977274476Skib error = kern_linkat(td, AT_FDCWD, AT_FDCWD, path, to, UIO_SYSSPACE, 978274476Skib FOLLOW); 979102814Siedowse LFREEPATH(path); 980102814Siedowse LFREEPATH(to); 981102814Siedowse return (error); 98249662Smarcel} 98349788Smarcel 98453713Smarcelint 985177997Skiblinux_linkat(struct thread *td, struct linux_linkat_args *args) 986177997Skib{ 987177997Skib char *path, *to; 988227693Sed int error, olddfd, newdfd, follow; 989177997Skib 990227693Sed if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW) 991177997Skib return (EINVAL); 992177997Skib 993177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 994177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 995177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd); 996177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 997177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 998177997Skib if (to == NULL) { 999177997Skib LFREEPATH(path); 1000177997Skib return (error); 1001177997Skib } 1002177997Skib 1003177997Skib#ifdef DEBUG 1004177997Skib if (ldebug(linkat)) 1005177997Skib printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path, 1006227693Sed args->newdfd, to, args->flag); 1007177997Skib#endif 1008177997Skib 1009227693Sed follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW : 1010227693Sed FOLLOW; 1011227693Sed error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow); 1012177997Skib LFREEPATH(path); 1013177997Skib LFREEPATH(to); 1014177997Skib return (error); 1015177997Skib} 1016177997Skib 1017177997Skibint 101883366Sjulianlinux_fdatasync(td, uap) 101983366Sjulian struct thread *td; 102053713Smarcel struct linux_fdatasync_args *uap; 102153713Smarcel{ 102253713Smarcel struct fsync_args bsd; 102353713Smarcel 102453713Smarcel bsd.fd = uap->fd; 1025225617Skmacy return sys_fsync(td, &bsd); 102653713Smarcel} 102763285Smarcel 102863285Smarcelint 102983366Sjulianlinux_pread(td, uap) 103083366Sjulian struct thread *td; 103163285Smarcel struct linux_pread_args *uap; 103263285Smarcel{ 103363285Smarcel struct pread_args bsd; 1034255219Spjd cap_rights_t rights; 1035162585Snetchild struct vnode *vp; 1036162585Snetchild int error; 103763285Smarcel 103863285Smarcel bsd.fd = uap->fd; 103963285Smarcel bsd.buf = uap->buf; 104063285Smarcel bsd.nbyte = uap->nbyte; 104163285Smarcel bsd.offset = uap->offset; 1042162585Snetchild 1043225617Skmacy error = sys_pread(td, &bsd); 1044162585Snetchild 1045162585Snetchild if (error == 0) { 1046247602Spjd /* This seems to violate POSIX but linux does it */ 1047255219Spjd error = fgetvp(td, uap->fd, 1048255219Spjd cap_rights_init(&rights, CAP_PREAD), &vp); 1049255219Spjd if (error != 0) 1050247602Spjd return (error); 1051162585Snetchild if (vp->v_type == VDIR) { 1052247602Spjd vrele(vp); 1053162585Snetchild return (EISDIR); 1054162585Snetchild } 1055162585Snetchild vrele(vp); 1056162585Snetchild } 1057162585Snetchild 1058162585Snetchild return (error); 105963285Smarcel} 106063285Smarcel 106163285Smarcelint 106283366Sjulianlinux_pwrite(td, uap) 106383366Sjulian struct thread *td; 106463285Smarcel struct linux_pwrite_args *uap; 106563285Smarcel{ 106663285Smarcel struct pwrite_args bsd; 106763285Smarcel 106863285Smarcel bsd.fd = uap->fd; 106963285Smarcel bsd.buf = uap->buf; 107063285Smarcel bsd.nbyte = uap->nbyte; 107163285Smarcel bsd.offset = uap->offset; 1072225617Skmacy return sys_pwrite(td, &bsd); 107363285Smarcel} 107472538Sjlemon 107572538Sjlemonint 107683366Sjulianlinux_mount(struct thread *td, struct linux_mount_args *args) 107772538Sjlemon{ 1078111798Sdes char fstypename[MFSNAMELEN]; 1079111798Sdes char mntonname[MNAMELEN], mntfromname[MNAMELEN]; 108073286Sadrian int error; 108173286Sadrian int fsflags; 108272538Sjlemon 1083111798Sdes error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1, 108473286Sadrian NULL); 108572538Sjlemon if (error) 1086111798Sdes return (error); 1087127057Stjr error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL); 108872538Sjlemon if (error) 1089111798Sdes return (error); 1090127057Stjr error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL); 109172538Sjlemon if (error) 1092111798Sdes return (error); 109372538Sjlemon 109472538Sjlemon#ifdef DEBUG 109572538Sjlemon if (ldebug(mount)) 109672538Sjlemon printf(ARGS(mount, "%s, %s, %s"), 109772538Sjlemon fstypename, mntfromname, mntonname); 109872538Sjlemon#endif 109972538Sjlemon 110072538Sjlemon if (strcmp(fstypename, "ext2") == 0) { 1101127059Stjr strcpy(fstypename, "ext2fs"); 110272538Sjlemon } else if (strcmp(fstypename, "proc") == 0) { 1103127059Stjr strcpy(fstypename, "linprocfs"); 1104190445Sambrisko } else if (strcmp(fstypename, "vfat") == 0) { 1105190445Sambrisko strcpy(fstypename, "msdosfs"); 110672538Sjlemon } 110772538Sjlemon 110873286Sadrian fsflags = 0; 110972538Sjlemon 111072538Sjlemon if ((args->rwflag & 0xffff0000) == 0xc0ed0000) { 111172538Sjlemon /* 111272538Sjlemon * Linux SYNC flag is not included; the closest equivalent 111372538Sjlemon * FreeBSD has is !ASYNC, which is our default. 111472538Sjlemon */ 111572538Sjlemon if (args->rwflag & LINUX_MS_RDONLY) 1116111798Sdes fsflags |= MNT_RDONLY; 111772538Sjlemon if (args->rwflag & LINUX_MS_NOSUID) 1118111798Sdes fsflags |= MNT_NOSUID; 111972538Sjlemon if (args->rwflag & LINUX_MS_NOEXEC) 1120111798Sdes fsflags |= MNT_NOEXEC; 112172538Sjlemon if (args->rwflag & LINUX_MS_REMOUNT) 1122111798Sdes fsflags |= MNT_UPDATE; 112372538Sjlemon } 112472538Sjlemon 1125281689Strasz error = kernel_vmount(fsflags, 1126281689Strasz "fstype", fstypename, 1127281689Strasz "fspath", mntonname, 1128281689Strasz "from", mntfromname, 1129281689Strasz NULL); 1130127059Stjr return (error); 113172538Sjlemon} 113272538Sjlemon 1133283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 113472538Sjlemonint 113583366Sjulianlinux_oldumount(struct thread *td, struct linux_oldumount_args *args) 113672538Sjlemon{ 113783221Smarcel struct linux_umount_args args2; 113872538Sjlemon 113972538Sjlemon args2.path = args->path; 114072538Sjlemon args2.flags = 0; 114183366Sjulian return (linux_umount(td, &args2)); 114272538Sjlemon} 1143283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 114472538Sjlemon 114572538Sjlemonint 114683366Sjulianlinux_umount(struct thread *td, struct linux_umount_args *args) 114772538Sjlemon{ 114872538Sjlemon struct unmount_args bsd; 114972538Sjlemon 115072538Sjlemon bsd.path = args->path; 115172538Sjlemon bsd.flags = args->flags; /* XXX correct? */ 1152225617Skmacy return (sys_unmount(td, &bsd)); 115372538Sjlemon} 115483221Smarcel 115583221Smarcel/* 115683221Smarcel * fcntl family of syscalls 115783221Smarcel */ 115883221Smarcel 115983221Smarcelstruct l_flock { 116083221Smarcel l_short l_type; 116183221Smarcel l_short l_whence; 116283221Smarcel l_off_t l_start; 116383221Smarcel l_off_t l_len; 116483221Smarcel l_pid_t l_pid; 1165133816Stjr} 1166140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1167133816Stjr__packed 1168133816Stjr#endif 1169133816Stjr; 117083221Smarcel 117183221Smarcelstatic void 117283221Smarcellinux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock) 117383221Smarcel{ 117483221Smarcel switch (linux_flock->l_type) { 117583221Smarcel case LINUX_F_RDLCK: 117683221Smarcel bsd_flock->l_type = F_RDLCK; 117783221Smarcel break; 117883221Smarcel case LINUX_F_WRLCK: 117983221Smarcel bsd_flock->l_type = F_WRLCK; 118083221Smarcel break; 118183221Smarcel case LINUX_F_UNLCK: 118283221Smarcel bsd_flock->l_type = F_UNLCK; 118383221Smarcel break; 118483221Smarcel default: 118583221Smarcel bsd_flock->l_type = -1; 118683221Smarcel break; 118783221Smarcel } 118883221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 118983221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 119083221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 119183221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1192177633Sdfr bsd_flock->l_sysid = 0; 119383221Smarcel} 119483221Smarcel 119583221Smarcelstatic void 119683221Smarcelbsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock) 119783221Smarcel{ 119883221Smarcel switch (bsd_flock->l_type) { 119983221Smarcel case F_RDLCK: 120083221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 120183221Smarcel break; 120283221Smarcel case F_WRLCK: 120383221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 120483221Smarcel break; 120583221Smarcel case F_UNLCK: 120683221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 120783221Smarcel break; 120883221Smarcel } 120983221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 121083221Smarcel linux_flock->l_start = (l_off_t)bsd_flock->l_start; 121183221Smarcel linux_flock->l_len = (l_off_t)bsd_flock->l_len; 121283221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 121383221Smarcel} 121483221Smarcel 1215140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 121683221Smarcelstruct l_flock64 { 121783221Smarcel l_short l_type; 121883221Smarcel l_short l_whence; 121983221Smarcel l_loff_t l_start; 122083221Smarcel l_loff_t l_len; 122183221Smarcel l_pid_t l_pid; 1222133816Stjr} 1223140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1224133816Stjr__packed 1225133816Stjr#endif 1226133816Stjr; 122783221Smarcel 122883221Smarcelstatic void 122983221Smarcellinux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock) 123083221Smarcel{ 123183221Smarcel switch (linux_flock->l_type) { 123283221Smarcel case LINUX_F_RDLCK: 123383221Smarcel bsd_flock->l_type = F_RDLCK; 123483221Smarcel break; 123583221Smarcel case LINUX_F_WRLCK: 123683221Smarcel bsd_flock->l_type = F_WRLCK; 123783221Smarcel break; 123883221Smarcel case LINUX_F_UNLCK: 123983221Smarcel bsd_flock->l_type = F_UNLCK; 124083221Smarcel break; 124183221Smarcel default: 124283221Smarcel bsd_flock->l_type = -1; 124383221Smarcel break; 124483221Smarcel } 124583221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 124683221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 124783221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 124883221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1249177633Sdfr bsd_flock->l_sysid = 0; 125083221Smarcel} 125183221Smarcel 125283221Smarcelstatic void 125383221Smarcelbsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock) 125483221Smarcel{ 125583221Smarcel switch (bsd_flock->l_type) { 125683221Smarcel case F_RDLCK: 125783221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 125883221Smarcel break; 125983221Smarcel case F_WRLCK: 126083221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 126183221Smarcel break; 126283221Smarcel case F_UNLCK: 126383221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 126483221Smarcel break; 126583221Smarcel } 126683221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 126783221Smarcel linux_flock->l_start = (l_loff_t)bsd_flock->l_start; 126883221Smarcel linux_flock->l_len = (l_loff_t)bsd_flock->l_len; 126983221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 127083221Smarcel} 1271133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 127283221Smarcel 127383221Smarcelstatic int 1274283415Sdchaginfcntl_common(struct thread *td, struct linux_fcntl_args *args) 127583221Smarcel{ 1276107680Siedowse struct l_flock linux_flock; 1277107680Siedowse struct flock bsd_flock; 1278255219Spjd cap_rights_t rights; 127983221Smarcel struct file *fp; 1280102872Siedowse long arg; 128183221Smarcel int error, result; 128283221Smarcel 128383221Smarcel switch (args->cmd) { 128483221Smarcel case LINUX_F_DUPFD: 1285102872Siedowse return (kern_fcntl(td, args->fd, F_DUPFD, args->arg)); 128683221Smarcel 128783221Smarcel case LINUX_F_GETFD: 1288102872Siedowse return (kern_fcntl(td, args->fd, F_GETFD, 0)); 128983221Smarcel 129083221Smarcel case LINUX_F_SETFD: 1291102872Siedowse return (kern_fcntl(td, args->fd, F_SETFD, args->arg)); 129283221Smarcel 129383221Smarcel case LINUX_F_GETFL: 1294102872Siedowse error = kern_fcntl(td, args->fd, F_GETFL, 0); 129583366Sjulian result = td->td_retval[0]; 129683366Sjulian td->td_retval[0] = 0; 129783221Smarcel if (result & O_RDONLY) 129883366Sjulian td->td_retval[0] |= LINUX_O_RDONLY; 129983221Smarcel if (result & O_WRONLY) 130083366Sjulian td->td_retval[0] |= LINUX_O_WRONLY; 130183221Smarcel if (result & O_RDWR) 130283366Sjulian td->td_retval[0] |= LINUX_O_RDWR; 130383221Smarcel if (result & O_NDELAY) 130483366Sjulian td->td_retval[0] |= LINUX_O_NONBLOCK; 130583221Smarcel if (result & O_APPEND) 130683366Sjulian td->td_retval[0] |= LINUX_O_APPEND; 130783221Smarcel if (result & O_FSYNC) 130883366Sjulian td->td_retval[0] |= LINUX_O_SYNC; 130983221Smarcel if (result & O_ASYNC) 131083366Sjulian td->td_retval[0] |= LINUX_FASYNC; 1311144987Smdodd#ifdef LINUX_O_NOFOLLOW 1312144987Smdodd if (result & O_NOFOLLOW) 1313144987Smdodd td->td_retval[0] |= LINUX_O_NOFOLLOW; 1314144987Smdodd#endif 1315144987Smdodd#ifdef LINUX_O_DIRECT 1316144987Smdodd if (result & O_DIRECT) 1317144987Smdodd td->td_retval[0] |= LINUX_O_DIRECT; 1318144987Smdodd#endif 131983221Smarcel return (error); 132083221Smarcel 132183221Smarcel case LINUX_F_SETFL: 1322102872Siedowse arg = 0; 132383221Smarcel if (args->arg & LINUX_O_NDELAY) 1324102872Siedowse arg |= O_NONBLOCK; 132583221Smarcel if (args->arg & LINUX_O_APPEND) 1326102872Siedowse arg |= O_APPEND; 132783221Smarcel if (args->arg & LINUX_O_SYNC) 1328102872Siedowse arg |= O_FSYNC; 132983221Smarcel if (args->arg & LINUX_FASYNC) 1330102872Siedowse arg |= O_ASYNC; 1331144987Smdodd#ifdef LINUX_O_NOFOLLOW 1332144987Smdodd if (args->arg & LINUX_O_NOFOLLOW) 1333144987Smdodd arg |= O_NOFOLLOW; 1334144987Smdodd#endif 1335144987Smdodd#ifdef LINUX_O_DIRECT 1336144987Smdodd if (args->arg & LINUX_O_DIRECT) 1337144987Smdodd arg |= O_DIRECT; 1338144987Smdodd#endif 1339102872Siedowse return (kern_fcntl(td, args->fd, F_SETFL, arg)); 134083221Smarcel 1341107680Siedowse case LINUX_F_GETLK: 1342111797Sdes error = copyin((void *)args->arg, &linux_flock, 1343107680Siedowse sizeof(linux_flock)); 1344107680Siedowse if (error) 1345107680Siedowse return (error); 1346107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1347107680Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1348107680Siedowse if (error) 1349107680Siedowse return (error); 1350107680Siedowse bsd_to_linux_flock(&bsd_flock, &linux_flock); 1351111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1352107680Siedowse sizeof(linux_flock))); 1353107680Siedowse 1354107680Siedowse case LINUX_F_SETLK: 1355111797Sdes error = copyin((void *)args->arg, &linux_flock, 1356107680Siedowse sizeof(linux_flock)); 1357107680Siedowse if (error) 1358107680Siedowse return (error); 1359107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1360107680Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1361107680Siedowse (intptr_t)&bsd_flock)); 1362107680Siedowse 1363107680Siedowse case LINUX_F_SETLKW: 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_SETLKW, 1370107680Siedowse (intptr_t)&bsd_flock)); 1371107680Siedowse 137283221Smarcel case LINUX_F_GETOWN: 1373102872Siedowse return (kern_fcntl(td, args->fd, F_GETOWN, 0)); 137483221Smarcel 137583221Smarcel case LINUX_F_SETOWN: 137683221Smarcel /* 137783221Smarcel * XXX some Linux applications depend on F_SETOWN having no 137883221Smarcel * significant effect for pipes (SIGIO is not delivered for 137983221Smarcel * pipes under Linux-2.2.35 at least). 138083221Smarcel */ 1381255219Spjd error = fget(td, args->fd, 1382255219Spjd cap_rights_init(&rights, CAP_FCNTL), &fp); 138389319Salfred if (error) 138489319Salfred return (error); 138589306Salfred if (fp->f_type == DTYPE_PIPE) { 138689306Salfred fdrop(fp, td); 138783221Smarcel return (EINVAL); 138889306Salfred } 138989306Salfred fdrop(fp, td); 139083221Smarcel 1391102872Siedowse return (kern_fcntl(td, args->fd, F_SETOWN, args->arg)); 1392283439Sdchagin 1393283439Sdchagin case LINUX_F_DUPFD_CLOEXEC: 1394283439Sdchagin return (kern_fcntl(td, args->fd, F_DUPFD_CLOEXEC, args->arg)); 139583221Smarcel } 139683221Smarcel 139783221Smarcel return (EINVAL); 139883221Smarcel} 139983221Smarcel 140083221Smarcelint 140183366Sjulianlinux_fcntl(struct thread *td, struct linux_fcntl_args *args) 140283221Smarcel{ 140383221Smarcel 140483221Smarcel#ifdef DEBUG 140583221Smarcel if (ldebug(fcntl)) 140683221Smarcel printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd); 140783221Smarcel#endif 140883221Smarcel 1409283415Sdchagin return (fcntl_common(td, args)); 141083221Smarcel} 141183221Smarcel 1412140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 141383221Smarcelint 141483366Sjulianlinux_fcntl64(struct thread *td, struct linux_fcntl64_args *args) 141583221Smarcel{ 141683221Smarcel struct l_flock64 linux_flock; 1417102872Siedowse struct flock bsd_flock; 1418283415Sdchagin struct linux_fcntl_args fcntl_args; 141983221Smarcel int error; 142083221Smarcel 142183221Smarcel#ifdef DEBUG 142283221Smarcel if (ldebug(fcntl64)) 142383221Smarcel printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd); 142483221Smarcel#endif 142583221Smarcel 142683221Smarcel switch (args->cmd) { 142799687Srobert case LINUX_F_GETLK64: 1428111797Sdes error = copyin((void *)args->arg, &linux_flock, 142983221Smarcel sizeof(linux_flock)); 143083221Smarcel if (error) 143183221Smarcel return (error); 1432102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1433102872Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 143483221Smarcel if (error) 143583221Smarcel return (error); 1436102872Siedowse bsd_to_linux_flock64(&bsd_flock, &linux_flock); 1437111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1438111797Sdes sizeof(linux_flock))); 143983221Smarcel 144099687Srobert case LINUX_F_SETLK64: 1441111797Sdes error = copyin((void *)args->arg, &linux_flock, 144283221Smarcel sizeof(linux_flock)); 144383221Smarcel if (error) 144483221Smarcel return (error); 1445102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1446102872Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1447102872Siedowse (intptr_t)&bsd_flock)); 144883221Smarcel 144999687Srobert case LINUX_F_SETLKW64: 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_SETLKW, 1456102872Siedowse (intptr_t)&bsd_flock)); 145783221Smarcel } 145883221Smarcel 1459283415Sdchagin fcntl_args.fd = args->fd; 1460283415Sdchagin fcntl_args.cmd = args->cmd; 1461283415Sdchagin fcntl_args.arg = args->arg; 1462283415Sdchagin return (fcntl_common(td, &fcntl_args)); 146383221Smarcel} 1464133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 146585022Smarcel 146685022Smarcelint 146785022Smarcellinux_chown(struct thread *td, struct linux_chown_args *args) 146885022Smarcel{ 1469102814Siedowse char *path; 1470102814Siedowse int error; 147185022Smarcel 1472102814Siedowse LCONVPATHEXIST(td, args->path, &path); 147385022Smarcel 147485022Smarcel#ifdef DEBUG 147585022Smarcel if (ldebug(chown)) 1476102814Siedowse printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid); 147785022Smarcel#endif 1478274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1479274476Skib args->gid, 0); 1480102814Siedowse LFREEPATH(path); 1481102814Siedowse return (error); 148285022Smarcel} 148385022Smarcel 148485022Smarcelint 1485177997Skiblinux_fchownat(struct thread *td, struct linux_fchownat_args *args) 1486177997Skib{ 1487177997Skib char *path; 1488227693Sed int error, dfd, flag; 1489177997Skib 1490177997Skib if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW) 1491177997Skib return (EINVAL); 1492177997Skib 1493177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 1494177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 1495177997Skib 1496177997Skib#ifdef DEBUG 1497177997Skib if (ldebug(fchownat)) 1498177997Skib printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid); 1499177997Skib#endif 1500177997Skib 1501227693Sed flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 : 1502177997Skib AT_SYMLINK_NOFOLLOW; 1503177997Skib error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid, 1504227693Sed flag); 1505177997Skib LFREEPATH(path); 1506177997Skib return (error); 1507177997Skib} 1508177997Skib 1509177997Skibint 151085022Smarcellinux_lchown(struct thread *td, struct linux_lchown_args *args) 151185022Smarcel{ 1512102814Siedowse char *path; 1513102814Siedowse int error; 151485022Smarcel 1515102814Siedowse LCONVPATHEXIST(td, args->path, &path); 151685022Smarcel 151785022Smarcel#ifdef DEBUG 151885022Smarcel if (ldebug(lchown)) 1519102814Siedowse printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid); 152085022Smarcel#endif 1521274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1522274476Skib args->gid, AT_SYMLINK_NOFOLLOW); 1523102814Siedowse LFREEPATH(path); 1524102814Siedowse return (error); 152585022Smarcel} 1526228957Sjhb 1527228957Sjhbstatic int 1528228957Sjhbconvert_fadvice(int advice) 1529228957Sjhb{ 1530228957Sjhb switch (advice) { 1531228957Sjhb case LINUX_POSIX_FADV_NORMAL: 1532228957Sjhb return (POSIX_FADV_NORMAL); 1533228957Sjhb case LINUX_POSIX_FADV_RANDOM: 1534228957Sjhb return (POSIX_FADV_RANDOM); 1535228957Sjhb case LINUX_POSIX_FADV_SEQUENTIAL: 1536228957Sjhb return (POSIX_FADV_SEQUENTIAL); 1537228957Sjhb case LINUX_POSIX_FADV_WILLNEED: 1538228957Sjhb return (POSIX_FADV_WILLNEED); 1539228957Sjhb case LINUX_POSIX_FADV_DONTNEED: 1540228957Sjhb return (POSIX_FADV_DONTNEED); 1541228957Sjhb case LINUX_POSIX_FADV_NOREUSE: 1542228957Sjhb return (POSIX_FADV_NOREUSE); 1543228957Sjhb default: 1544228957Sjhb return (-1); 1545228957Sjhb } 1546228957Sjhb} 1547228957Sjhb 1548228957Sjhbint 1549228957Sjhblinux_fadvise64(struct thread *td, struct linux_fadvise64_args *args) 1550228957Sjhb{ 1551228957Sjhb int advice; 1552228957Sjhb 1553228957Sjhb advice = convert_fadvice(args->advice); 1554228957Sjhb if (advice == -1) 1555228957Sjhb return (EINVAL); 1556228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1557228957Sjhb advice)); 1558228957Sjhb} 1559228957Sjhb 1560283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1561228957Sjhbint 1562228957Sjhblinux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args) 1563228957Sjhb{ 1564228957Sjhb int advice; 1565228957Sjhb 1566228957Sjhb advice = convert_fadvice(args->advice); 1567228957Sjhb if (advice == -1) 1568228957Sjhb return (EINVAL); 1569228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1570228957Sjhb advice)); 1571228957Sjhb} 1572283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1573234352Sjkim 1574234352Sjkimint 1575234352Sjkimlinux_pipe(struct thread *td, struct linux_pipe_args *args) 1576234352Sjkim{ 1577234352Sjkim int fildes[2]; 1578234352Sjkim int error; 1579234352Sjkim 1580234352Sjkim#ifdef DEBUG 1581234352Sjkim if (ldebug(pipe)) 1582234352Sjkim printf(ARGS(pipe, "*")); 1583234352Sjkim#endif 1584234352Sjkim 1585286021Sed error = kern_pipe(td, fildes, 0, NULL, NULL); 1586234352Sjkim if (error) 1587234352Sjkim return (error); 1588234352Sjkim 1589234352Sjkim /* XXX: Close descriptors on error. */ 1590234352Sjkim return (copyout(fildes, args->pipefds, sizeof(fildes))); 1591234352Sjkim} 1592234352Sjkim 1593234352Sjkimint 1594234352Sjkimlinux_pipe2(struct thread *td, struct linux_pipe2_args *args) 1595234352Sjkim{ 1596234352Sjkim int fildes[2]; 1597234352Sjkim int error, flags; 1598234352Sjkim 1599234352Sjkim#ifdef DEBUG 1600234352Sjkim if (ldebug(pipe2)) 1601234352Sjkim printf(ARGS(pipe2, "*, %d"), args->flags); 1602234352Sjkim#endif 1603234352Sjkim 1604234352Sjkim if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0) 1605234352Sjkim return (EINVAL); 1606234352Sjkim 1607234352Sjkim flags = 0; 1608234352Sjkim if ((args->flags & LINUX_O_NONBLOCK) != 0) 1609234352Sjkim flags |= O_NONBLOCK; 1610234352Sjkim if ((args->flags & LINUX_O_CLOEXEC) != 0) 1611234352Sjkim flags |= O_CLOEXEC; 1612286021Sed error = kern_pipe(td, fildes, flags, NULL, NULL); 1613234352Sjkim if (error) 1614234352Sjkim return (error); 1615234352Sjkim 1616234352Sjkim /* XXX: Close descriptors on error. */ 1617234352Sjkim return (copyout(fildes, args->pipefds, sizeof(fildes))); 1618234352Sjkim} 1619283399Sdchagin 1620283399Sdchaginint 1621283399Sdchaginlinux_dup3(struct thread *td, struct linux_dup3_args *args) 1622283399Sdchagin{ 1623283399Sdchagin int cmd; 1624283399Sdchagin intptr_t newfd; 1625283399Sdchagin 1626283399Sdchagin if (args->oldfd == args->newfd) 1627283399Sdchagin return (EINVAL); 1628283399Sdchagin if ((args->flags & ~LINUX_O_CLOEXEC) != 0) 1629283399Sdchagin return (EINVAL); 1630283399Sdchagin if (args->flags & LINUX_O_CLOEXEC) 1631283399Sdchagin cmd = F_DUP2FD_CLOEXEC; 1632283399Sdchagin else 1633283399Sdchagin cmd = F_DUP2FD; 1634283399Sdchagin 1635283399Sdchagin newfd = args->newfd; 1636283399Sdchagin return (kern_fcntl(td, args->oldfd, cmd, newfd)); 1637283399Sdchagin} 1638283465Sdchagin 1639283465Sdchaginint 1640283465Sdchaginlinux_fallocate(struct thread *td, struct linux_fallocate_args *args) 1641283465Sdchagin{ 1642283465Sdchagin 1643283465Sdchagin /* 1644283465Sdchagin * We emulate only posix_fallocate system call for which 1645283465Sdchagin * mode should be 0. 1646283465Sdchagin */ 1647283465Sdchagin if (args->mode != 0) 1648283465Sdchagin return (ENOSYS); 1649283465Sdchagin 1650283465Sdchagin return (kern_posix_fallocate(td, args->fd, args->offset, 1651283465Sdchagin args->len)); 1652283465Sdchagin} 1653