linux_file.c revision 298482
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 298482 2016-04-22 16:57:42Z pfg $"); 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) \ 308298482Spfg roundup(offsetof(struct l_dirent, d_name) + (namlen) + 2, sizeof(l_ulong)) 30983221Smarcel 310182892Srdivacky#define LINUX_RECLEN64(namlen) \ 311298482Spfg roundup(offsetof(struct l_dirent64, d_name) + (namlen) + 1, \ 312182892Srdivacky sizeof(uint64_t)) 313182892Srdivacky 314182892Srdivacky#define LINUX_MAXRECLEN max(LINUX_RECLEN(LINUX_NAME_MAX), \ 315182892Srdivacky LINUX_RECLEN64(LINUX_NAME_MAX)) 31683221Smarcel#define LINUX_DIRBLKSIZ 512 31783221Smarcel 31883221Smarcelstatic int 31983366Sjuliangetdents_common(struct thread *td, struct linux_getdents64_args *args, 32083221Smarcel int is64bit) 32114331Speter{ 322111798Sdes struct dirent *bdp; 32383221Smarcel struct vnode *vp; 32483221Smarcel caddr_t inp, buf; /* BSD-format */ 32583221Smarcel int len, reclen; /* BSD-format */ 32683221Smarcel caddr_t outp; /* Linux-format */ 32783221Smarcel int resid, linuxreclen=0; /* Linux-format */ 328182892Srdivacky caddr_t lbuf; /* Linux-format */ 329255219Spjd cap_rights_t rights; 33083221Smarcel struct file *fp; 33183221Smarcel struct uio auio; 33283221Smarcel struct iovec aiov; 33383221Smarcel off_t off; 334182892Srdivacky struct l_dirent *linux_dirent; 335182892Srdivacky struct l_dirent64 *linux_dirent64; 33683221Smarcel int buflen, error, eofflag, nbytes, justone; 33783221Smarcel u_long *cookies = NULL, *cookiep; 338241896Skib int ncookies; 3399313Ssos 340160276Sjhb nbytes = args->count; 341160276Sjhb if (nbytes == 1) { 342160276Sjhb /* readdir(2) case. Always struct dirent. */ 343160276Sjhb if (is64bit) 344160276Sjhb return (EINVAL); 345188572Snetchild nbytes = sizeof(*linux_dirent); 346160276Sjhb justone = 1; 347160276Sjhb } else 348160276Sjhb justone = 0; 349160276Sjhb 350284446Smjg error = getvnode(td, args->fd, cap_rights_init(&rights, CAP_READ), &fp); 351255219Spjd if (error != 0) 35283221Smarcel return (error); 3539313Ssos 35489306Salfred if ((fp->f_flag & FREAD) == 0) { 35589306Salfred fdrop(fp, td); 35683221Smarcel return (EBADF); 35789306Salfred } 3589313Ssos 359238029Skib off = foffset_lock(fp, 0); 360116678Sphk vp = fp->f_vnode; 36189306Salfred if (vp->v_type != VDIR) { 362238029Skib foffset_unlock(fp, off, 0); 36389306Salfred fdrop(fp, td); 36483221Smarcel return (EINVAL); 36589306Salfred } 3669313Ssos 3679313Ssos 36883221Smarcel buflen = max(LINUX_DIRBLKSIZ, nbytes); 36983221Smarcel buflen = min(buflen, MAXBSIZE); 370283427Sdchagin buf = malloc(buflen, M_LINUX, M_WAITOK); 371283427Sdchagin lbuf = malloc(LINUX_MAXRECLEN, M_LINUX, M_WAITOK | M_ZERO); 372188588Sjhb vn_lock(vp, LK_SHARED | LK_RETRY); 37383221Smarcel 37483221Smarcel aiov.iov_base = buf; 37583221Smarcel aiov.iov_len = buflen; 37683221Smarcel auio.uio_iov = &aiov; 37783221Smarcel auio.uio_iovcnt = 1; 37883221Smarcel auio.uio_rw = UIO_READ; 37983221Smarcel auio.uio_segflg = UIO_SYSSPACE; 38083366Sjulian auio.uio_td = td; 38183221Smarcel auio.uio_resid = buflen; 38283221Smarcel auio.uio_offset = off; 3839313Ssos 384101189Srwatson#ifdef MAC 385101189Srwatson /* 386101189Srwatson * Do directory search MAC check using non-cached credentials. 387101189Srwatson */ 388172930Srwatson if ((error = mac_vnode_check_readdir(td->td_ucred, vp))) 389101189Srwatson goto out; 390101189Srwatson#endif /* MAC */ 39183221Smarcel if ((error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 39283221Smarcel &cookies))) 39383221Smarcel goto out; 3949313Ssos 39583221Smarcel inp = buf; 39683221Smarcel outp = (caddr_t)args->dirent; 39783221Smarcel resid = nbytes; 39883221Smarcel if ((len = buflen - auio.uio_resid) <= 0) 39983221Smarcel goto eof; 4009313Ssos 40183221Smarcel cookiep = cookies; 40224654Sdfr 40383221Smarcel if (cookies) { 40483221Smarcel /* 40583221Smarcel * When using cookies, the vfs has the option of reading from 40683221Smarcel * a different offset than that supplied (UFS truncates the 40783221Smarcel * offset to a block boundary to make sure that it never reads 40883221Smarcel * partway through a directory entry, even if the directory 40983221Smarcel * has been compacted). 41083221Smarcel */ 41183221Smarcel while (len > 0 && ncookies > 0 && *cookiep <= off) { 41283221Smarcel bdp = (struct dirent *) inp; 41383221Smarcel len -= bdp->d_reclen; 41483221Smarcel inp += bdp->d_reclen; 41583221Smarcel cookiep++; 41683221Smarcel ncookies--; 41783221Smarcel } 41824654Sdfr } 41924654Sdfr 42083221Smarcel while (len > 0) { 42183221Smarcel if (cookiep && ncookies == 0) 42283221Smarcel break; 42383221Smarcel bdp = (struct dirent *) inp; 42483221Smarcel reclen = bdp->d_reclen; 42583221Smarcel if (reclen & 3) { 42683221Smarcel error = EFAULT; 42783221Smarcel goto out; 42883221Smarcel } 42983221Smarcel 43083221Smarcel if (bdp->d_fileno == 0) { 43183221Smarcel inp += reclen; 43283221Smarcel if (cookiep) { 43383221Smarcel off = *cookiep++; 43483221Smarcel ncookies--; 43583221Smarcel } else 43683221Smarcel off += reclen; 43783221Smarcel 43883221Smarcel len -= reclen; 43983221Smarcel continue; 44083221Smarcel } 44183221Smarcel 44283221Smarcel linuxreclen = (is64bit) 443182892Srdivacky ? LINUX_RECLEN64(bdp->d_namlen) 444182892Srdivacky : LINUX_RECLEN(bdp->d_namlen); 44583221Smarcel 44683221Smarcel if (reclen > len || resid < linuxreclen) { 44783221Smarcel outp++; 44883221Smarcel break; 44983221Smarcel } 45083221Smarcel 45183221Smarcel if (justone) { 45283221Smarcel /* readdir(2) case. */ 453182892Srdivacky linux_dirent = (struct l_dirent*)lbuf; 454182892Srdivacky linux_dirent->d_ino = bdp->d_fileno; 455182892Srdivacky linux_dirent->d_off = (l_off_t)linuxreclen; 456182892Srdivacky linux_dirent->d_reclen = (l_ushort)bdp->d_namlen; 457182892Srdivacky strlcpy(linux_dirent->d_name, bdp->d_name, 458182892Srdivacky linuxreclen - offsetof(struct l_dirent, d_name)); 459182892Srdivacky error = copyout(linux_dirent, outp, linuxreclen); 46083221Smarcel } 461182892Srdivacky if (is64bit) { 462182892Srdivacky linux_dirent64 = (struct l_dirent64*)lbuf; 463182892Srdivacky linux_dirent64->d_ino = bdp->d_fileno; 464182892Srdivacky linux_dirent64->d_off = (cookiep) 465182892Srdivacky ? (l_off_t)*cookiep 466182892Srdivacky : (l_off_t)(off + reclen); 467182892Srdivacky linux_dirent64->d_reclen = (l_ushort)linuxreclen; 468182892Srdivacky linux_dirent64->d_type = bdp->d_type; 469182892Srdivacky strlcpy(linux_dirent64->d_name, bdp->d_name, 470182892Srdivacky linuxreclen - offsetof(struct l_dirent64, d_name)); 471182892Srdivacky error = copyout(linux_dirent64, outp, linuxreclen); 472182892Srdivacky } else if (!justone) { 473182892Srdivacky linux_dirent = (struct l_dirent*)lbuf; 474182892Srdivacky linux_dirent->d_ino = bdp->d_fileno; 475182892Srdivacky linux_dirent->d_off = (cookiep) 476182892Srdivacky ? (l_off_t)*cookiep 477182892Srdivacky : (l_off_t)(off + reclen); 478182892Srdivacky linux_dirent->d_reclen = (l_ushort)linuxreclen; 479182892Srdivacky /* 480182892Srdivacky * Copy d_type to last byte of l_dirent buffer 481182892Srdivacky */ 482182892Srdivacky lbuf[linuxreclen-1] = bdp->d_type; 483182892Srdivacky strlcpy(linux_dirent->d_name, bdp->d_name, 484182892Srdivacky linuxreclen - offsetof(struct l_dirent, d_name)-1); 485182892Srdivacky error = copyout(linux_dirent, outp, linuxreclen); 486182892Srdivacky } 487182892Srdivacky 48883221Smarcel if (error) 48983221Smarcel goto out; 49083221Smarcel 49183221Smarcel inp += reclen; 49283221Smarcel if (cookiep) { 49383221Smarcel off = *cookiep++; 49483221Smarcel ncookies--; 49583221Smarcel } else 49683221Smarcel off += reclen; 49783221Smarcel 49883221Smarcel outp += linuxreclen; 49983221Smarcel resid -= linuxreclen; 50083221Smarcel len -= reclen; 50183221Smarcel if (justone) 50283221Smarcel break; 50310355Sswallace } 5049313Ssos 505217578Skib if (outp == (caddr_t)args->dirent) { 506217578Skib nbytes = resid; 507217578Skib goto eof; 508217578Skib } 5099313Ssos 51083221Smarcel if (justone) 51183221Smarcel nbytes = resid + linuxreclen; 51210355Sswallace 5139313Ssoseof: 51483366Sjulian td->td_retval[0] = nbytes - resid; 51583221Smarcel 5169313Ssosout: 517247764Seadler free(cookies, M_TEMP); 51883221Smarcel 519175294Sattilio VOP_UNLOCK(vp, 0); 520238029Skib foffset_unlock(fp, off, 0); 52189306Salfred fdrop(fp, td); 522283427Sdchagin free(buf, M_LINUX); 523283427Sdchagin free(lbuf, M_LINUX); 52483221Smarcel return (error); 5259313Ssos} 52614331Speter 52783221Smarcelint 52883366Sjulianlinux_getdents(struct thread *td, struct linux_getdents_args *args) 52983221Smarcel{ 53083221Smarcel 53183221Smarcel#ifdef DEBUG 53283221Smarcel if (ldebug(getdents)) 53383221Smarcel printf(ARGS(getdents, "%d, *, %d"), args->fd, args->count); 53483221Smarcel#endif 53583221Smarcel 53683366Sjulian return (getdents_common(td, (struct linux_getdents64_args*)args, 0)); 53783221Smarcel} 53883221Smarcel 53983221Smarcelint 54083366Sjulianlinux_getdents64(struct thread *td, struct linux_getdents64_args *args) 54183221Smarcel{ 54283221Smarcel 54383221Smarcel#ifdef DEBUG 54483221Smarcel if (ldebug(getdents64)) 54583221Smarcel printf(ARGS(getdents64, "%d, *, %d"), args->fd, args->count); 54683221Smarcel#endif 54783221Smarcel 54883366Sjulian return (getdents_common(td, args, 1)); 54983221Smarcel} 55083221Smarcel 55114331Speter/* 55214331Speter * These exist mainly for hooks for doing /compat/linux translation. 55314331Speter */ 55414331Speter 55514331Speterint 55683366Sjulianlinux_access(struct thread *td, struct linux_access_args *args) 55714331Speter{ 558102814Siedowse char *path; 559102814Siedowse int error; 56014331Speter 561162585Snetchild /* linux convention */ 562227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 563162585Snetchild return (EINVAL); 564162585Snetchild 565102814Siedowse LCONVPATHEXIST(td, args->path, &path); 56614331Speter 56714331Speter#ifdef DEBUG 56872543Sjlemon if (ldebug(access)) 569227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 57014331Speter#endif 571274476Skib error = kern_accessat(td, AT_FDCWD, path, UIO_SYSSPACE, 0, 572274476Skib args->amode); 573102814Siedowse LFREEPATH(path); 574162585Snetchild 575102814Siedowse return (error); 57614331Speter} 57714331Speter 57814331Speterint 579177997Skiblinux_faccessat(struct thread *td, struct linux_faccessat_args *args) 580177997Skib{ 581177997Skib char *path; 582283428Sdchagin int error, dfd; 583177997Skib 584177997Skib /* linux convention */ 585227691Sed if (args->amode & ~(F_OK | X_OK | W_OK | R_OK)) 586177997Skib return (EINVAL); 587177997Skib 588177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 589177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 590177997Skib 591177997Skib#ifdef DEBUG 592177997Skib if (ldebug(access)) 593227691Sed printf(ARGS(access, "%s, %d"), path, args->amode); 594177997Skib#endif 595177997Skib 596283428Sdchagin error = kern_accessat(td, dfd, path, UIO_SYSSPACE, 0, args->amode); 597177997Skib LFREEPATH(path); 598177997Skib 599177997Skib return (error); 600177997Skib} 601177997Skib 602177997Skibint 60383366Sjulianlinux_unlink(struct thread *td, struct linux_unlink_args *args) 60414331Speter{ 605102814Siedowse char *path; 606102814Siedowse int error; 607162201Snetchild struct stat st; 60814331Speter 609102814Siedowse LCONVPATHEXIST(td, args->path, &path); 61014331Speter 61114331Speter#ifdef DEBUG 61272543Sjlemon if (ldebug(unlink)) 613102814Siedowse printf(ARGS(unlink, "%s"), path); 61414331Speter#endif 61514331Speter 616274476Skib error = kern_unlinkat(td, AT_FDCWD, path, UIO_SYSSPACE, 0); 617274476Skib if (error == EPERM) { 618162201Snetchild /* Introduce POSIX noncompliant behaviour of Linux */ 619274476Skib if (kern_statat(td, 0, AT_FDCWD, path, UIO_SYSSPACE, &st, 620274476Skib NULL) == 0) { 621162201Snetchild if (S_ISDIR(st.st_mode)) 622162201Snetchild error = EISDIR; 623274476Skib } 624274476Skib } 625102814Siedowse LFREEPATH(path); 626102814Siedowse return (error); 62714331Speter} 62814331Speter 62914331Speterint 630177997Skiblinux_unlinkat(struct thread *td, struct linux_unlinkat_args *args) 631177997Skib{ 632177997Skib char *path; 633177997Skib int error, dfd; 634177997Skib struct stat st; 635177997Skib 636177997Skib if (args->flag & ~LINUX_AT_REMOVEDIR) 637177997Skib return (EINVAL); 638177997Skib 639177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 640177997Skib LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); 641177997Skib 642177997Skib#ifdef DEBUG 643177997Skib if (ldebug(unlinkat)) 644177997Skib printf(ARGS(unlinkat, "%s"), path); 645177997Skib#endif 646177997Skib 647177997Skib if (args->flag & LINUX_AT_REMOVEDIR) 648177997Skib error = kern_rmdirat(td, dfd, path, UIO_SYSSPACE); 649177997Skib else 650202113Smckusick error = kern_unlinkat(td, dfd, path, UIO_SYSSPACE, 0); 651177997Skib if (error == EPERM && !(args->flag & LINUX_AT_REMOVEDIR)) { 652177997Skib /* Introduce POSIX noncompliant behaviour of Linux */ 653177997Skib if (kern_statat(td, AT_SYMLINK_NOFOLLOW, dfd, path, 654274476Skib UIO_SYSSPACE, &st, NULL) == 0 && S_ISDIR(st.st_mode)) 655177997Skib error = EISDIR; 656177997Skib } 657177997Skib LFREEPATH(path); 658177997Skib return (error); 659177997Skib} 660177997Skibint 66183366Sjulianlinux_chdir(struct thread *td, struct linux_chdir_args *args) 66214331Speter{ 663102814Siedowse char *path; 664102814Siedowse int error; 66514331Speter 666102814Siedowse LCONVPATHEXIST(td, args->path, &path); 66714331Speter 66814331Speter#ifdef DEBUG 66972543Sjlemon if (ldebug(chdir)) 670102814Siedowse printf(ARGS(chdir, "%s"), path); 67114331Speter#endif 672102814Siedowse error = kern_chdir(td, path, UIO_SYSSPACE); 673102814Siedowse LFREEPATH(path); 674102814Siedowse return (error); 67514331Speter} 67614331Speter 67714331Speterint 67883366Sjulianlinux_chmod(struct thread *td, struct linux_chmod_args *args) 67914331Speter{ 680102814Siedowse char *path; 681102814Siedowse int error; 68214331Speter 683102814Siedowse LCONVPATHEXIST(td, args->path, &path); 68414331Speter 68514331Speter#ifdef DEBUG 68672543Sjlemon if (ldebug(chmod)) 687102814Siedowse printf(ARGS(chmod, "%s, %d"), path, args->mode); 68814331Speter#endif 689274476Skib error = kern_fchmodat(td, AT_FDCWD, path, UIO_SYSSPACE, 690274476Skib args->mode, 0); 691102814Siedowse LFREEPATH(path); 692102814Siedowse return (error); 69314331Speter} 69414331Speter 69514331Speterint 696177997Skiblinux_fchmodat(struct thread *td, struct linux_fchmodat_args *args) 697177997Skib{ 698177997Skib char *path; 699177997Skib int error, dfd; 700177997Skib 701177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 702177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 703177997Skib 704177997Skib#ifdef DEBUG 705177997Skib if (ldebug(fchmodat)) 706177997Skib printf(ARGS(fchmodat, "%s, %d"), path, args->mode); 707177997Skib#endif 708177997Skib 709177997Skib error = kern_fchmodat(td, dfd, path, UIO_SYSSPACE, args->mode, 0); 710177997Skib LFREEPATH(path); 711177997Skib return (error); 712177997Skib} 713177997Skib 714177997Skibint 71583366Sjulianlinux_mkdir(struct thread *td, struct linux_mkdir_args *args) 71614331Speter{ 717102814Siedowse char *path; 718102814Siedowse int error; 71914331Speter 720102814Siedowse LCONVPATHCREAT(td, args->path, &path); 72114331Speter 72214331Speter#ifdef DEBUG 72372543Sjlemon if (ldebug(mkdir)) 724102814Siedowse printf(ARGS(mkdir, "%s, %d"), path, args->mode); 72514331Speter#endif 726274476Skib error = kern_mkdirat(td, AT_FDCWD, path, UIO_SYSSPACE, args->mode); 727102814Siedowse LFREEPATH(path); 728102814Siedowse return (error); 72914331Speter} 73014331Speter 73114331Speterint 732177997Skiblinux_mkdirat(struct thread *td, struct linux_mkdirat_args *args) 733177997Skib{ 734177997Skib char *path; 735177997Skib int error, dfd; 736177997Skib 737177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 738177997Skib LCONVPATHCREAT_AT(td, args->pathname, &path, dfd); 739177997Skib 740177997Skib#ifdef DEBUG 741177997Skib if (ldebug(mkdirat)) 742177997Skib printf(ARGS(mkdirat, "%s, %d"), path, args->mode); 743177997Skib#endif 744177997Skib error = kern_mkdirat(td, dfd, path, UIO_SYSSPACE, args->mode); 745177997Skib LFREEPATH(path); 746177997Skib return (error); 747177997Skib} 748177997Skib 749177997Skibint 75083366Sjulianlinux_rmdir(struct thread *td, struct linux_rmdir_args *args) 75114331Speter{ 752102814Siedowse char *path; 753102814Siedowse int error; 75414331Speter 755102814Siedowse LCONVPATHEXIST(td, args->path, &path); 75614331Speter 75714331Speter#ifdef DEBUG 75872543Sjlemon if (ldebug(rmdir)) 759102814Siedowse printf(ARGS(rmdir, "%s"), path); 76014331Speter#endif 761274476Skib error = kern_rmdirat(td, AT_FDCWD, path, UIO_SYSSPACE); 762102814Siedowse LFREEPATH(path); 763102814Siedowse return (error); 76414331Speter} 76514331Speter 76614331Speterint 76783366Sjulianlinux_rename(struct thread *td, struct linux_rename_args *args) 76814331Speter{ 769102814Siedowse char *from, *to; 770102814Siedowse int error; 77114331Speter 772102814Siedowse LCONVPATHEXIST(td, args->from, &from); 773102814Siedowse /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 774177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 775102814Siedowse if (to == NULL) { 776102814Siedowse LFREEPATH(from); 777102814Siedowse return (error); 778102814Siedowse } 77914331Speter 78014331Speter#ifdef DEBUG 78172543Sjlemon if (ldebug(rename)) 782102814Siedowse printf(ARGS(rename, "%s, %s"), from, to); 78314331Speter#endif 784274476Skib error = kern_renameat(td, AT_FDCWD, from, AT_FDCWD, to, UIO_SYSSPACE); 785102814Siedowse LFREEPATH(from); 786102814Siedowse LFREEPATH(to); 787102814Siedowse return (error); 78814331Speter} 78914331Speter 79014331Speterint 791177997Skiblinux_renameat(struct thread *td, struct linux_renameat_args *args) 792177997Skib{ 793177997Skib char *from, *to; 794177997Skib int error, olddfd, newdfd; 795177997Skib 796177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 797177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 798177997Skib LCONVPATHEXIST_AT(td, args->oldname, &from, olddfd); 799177997Skib /* Expand LCONVPATHCREATE so that `from' can be freed on errors */ 800177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 801177997Skib if (to == NULL) { 802177997Skib LFREEPATH(from); 803177997Skib return (error); 804177997Skib } 805177997Skib 806177997Skib#ifdef DEBUG 807177997Skib if (ldebug(renameat)) 808177997Skib printf(ARGS(renameat, "%s, %s"), from, to); 809177997Skib#endif 810177997Skib error = kern_renameat(td, olddfd, from, newdfd, to, UIO_SYSSPACE); 811177997Skib LFREEPATH(from); 812177997Skib LFREEPATH(to); 813177997Skib return (error); 814177997Skib} 815177997Skib 816177997Skibint 81783366Sjulianlinux_symlink(struct thread *td, struct linux_symlink_args *args) 81814331Speter{ 819102814Siedowse char *path, *to; 820102814Siedowse int error; 82114331Speter 822102814Siedowse LCONVPATHEXIST(td, args->path, &path); 823102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 824177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 825102814Siedowse if (to == NULL) { 826102814Siedowse LFREEPATH(path); 827102814Siedowse return (error); 828102814Siedowse } 82914331Speter 83014331Speter#ifdef DEBUG 83172543Sjlemon if (ldebug(symlink)) 832102814Siedowse printf(ARGS(symlink, "%s, %s"), path, to); 83314331Speter#endif 834274476Skib error = kern_symlinkat(td, path, AT_FDCWD, to, UIO_SYSSPACE); 835102814Siedowse LFREEPATH(path); 836102814Siedowse LFREEPATH(to); 837102814Siedowse return (error); 83814331Speter} 83914331Speter 84014331Speterint 841177997Skiblinux_symlinkat(struct thread *td, struct linux_symlinkat_args *args) 842177997Skib{ 843177997Skib char *path, *to; 844177997Skib int error, dfd; 845177997Skib 846177997Skib dfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 847177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, dfd); 848177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 849177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, dfd); 850177997Skib if (to == NULL) { 851177997Skib LFREEPATH(path); 852177997Skib return (error); 853177997Skib } 854177997Skib 855177997Skib#ifdef DEBUG 856177997Skib if (ldebug(symlinkat)) 857177997Skib printf(ARGS(symlinkat, "%s, %s"), path, to); 858177997Skib#endif 859177997Skib 860177997Skib error = kern_symlinkat(td, path, dfd, to, UIO_SYSSPACE); 861177997Skib LFREEPATH(path); 862177997Skib LFREEPATH(to); 863177997Skib return (error); 864177997Skib} 865177997Skib 866177997Skibint 86783366Sjulianlinux_readlink(struct thread *td, struct linux_readlink_args *args) 86814331Speter{ 869102814Siedowse char *name; 870102814Siedowse int error; 87114331Speter 872102814Siedowse LCONVPATHEXIST(td, args->name, &name); 87314331Speter 87414331Speter#ifdef DEBUG 87572543Sjlemon if (ldebug(readlink)) 876102814Siedowse printf(ARGS(readlink, "%s, %p, %d"), name, (void *)args->buf, 877102814Siedowse args->count); 87814331Speter#endif 879274476Skib error = kern_readlinkat(td, AT_FDCWD, name, UIO_SYSSPACE, 880274476Skib args->buf, UIO_USERSPACE, args->count); 881102814Siedowse LFREEPATH(name); 882102814Siedowse return (error); 88314331Speter} 88414331Speter 88514331Speterint 886177997Skiblinux_readlinkat(struct thread *td, struct linux_readlinkat_args *args) 887177997Skib{ 888177997Skib char *name; 889177997Skib int error, dfd; 890177997Skib 891177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 892177997Skib LCONVPATHEXIST_AT(td, args->path, &name, dfd); 893177997Skib 894177997Skib#ifdef DEBUG 895177997Skib if (ldebug(readlinkat)) 896177997Skib printf(ARGS(readlinkat, "%s, %p, %d"), name, (void *)args->buf, 897177997Skib args->bufsiz); 898177997Skib#endif 899177997Skib 900177997Skib error = kern_readlinkat(td, dfd, name, UIO_SYSSPACE, args->buf, 901177997Skib UIO_USERSPACE, args->bufsiz); 902177997Skib LFREEPATH(name); 903177997Skib return (error); 904177997Skib} 905178439Srdivacky 906177997Skibint 90783366Sjulianlinux_truncate(struct thread *td, struct linux_truncate_args *args) 90814331Speter{ 909102814Siedowse char *path; 910102814Siedowse int error; 91114331Speter 912102814Siedowse LCONVPATHEXIST(td, args->path, &path); 91314331Speter 91414331Speter#ifdef DEBUG 91572543Sjlemon if (ldebug(truncate)) 916102814Siedowse printf(ARGS(truncate, "%s, %ld"), path, (long)args->length); 91714331Speter#endif 91814331Speter 919102814Siedowse error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 920102814Siedowse LFREEPATH(path); 921102814Siedowse return (error); 92214331Speter} 92314331Speter 924283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 92549662Smarcelint 926178439Srdivackylinux_truncate64(struct thread *td, struct linux_truncate64_args *args) 927178439Srdivacky{ 928178439Srdivacky char *path; 929178439Srdivacky int error; 930178439Srdivacky 931178439Srdivacky LCONVPATHEXIST(td, args->path, &path); 932178439Srdivacky 933178439Srdivacky#ifdef DEBUG 934178439Srdivacky if (ldebug(truncate64)) 935178439Srdivacky printf(ARGS(truncate64, "%s, %jd"), path, args->length); 936178439Srdivacky#endif 937178439Srdivacky 938178439Srdivacky error = kern_truncate(td, path, UIO_SYSSPACE, args->length); 939178439Srdivacky LFREEPATH(path); 940178439Srdivacky return (error); 941178439Srdivacky} 942283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 943283415Sdchagin 944178439Srdivackyint 945156842Snetchildlinux_ftruncate(struct thread *td, struct linux_ftruncate_args *args) 946156842Snetchild{ 947156842Snetchild struct ftruncate_args /* { 948156842Snetchild int fd; 949156842Snetchild int pad; 950156842Snetchild off_t length; 951156842Snetchild } */ nuap; 952156842Snetchild 953156842Snetchild nuap.fd = args->fd; 954156842Snetchild nuap.length = args->length; 955225617Skmacy return (sys_ftruncate(td, &nuap)); 956156842Snetchild} 957156842Snetchild 958156842Snetchildint 95983366Sjulianlinux_link(struct thread *td, struct linux_link_args *args) 96049662Smarcel{ 961102814Siedowse char *path, *to; 962102814Siedowse int error; 96349662Smarcel 964102814Siedowse LCONVPATHEXIST(td, args->path, &path); 965102814Siedowse /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 966177997Skib error = linux_emul_convpath(td, args->to, UIO_USERSPACE, &to, 1, AT_FDCWD); 967102814Siedowse if (to == NULL) { 968102814Siedowse LFREEPATH(path); 969102814Siedowse return (error); 970102814Siedowse } 97149662Smarcel 97249662Smarcel#ifdef DEBUG 97372543Sjlemon if (ldebug(link)) 974102814Siedowse printf(ARGS(link, "%s, %s"), path, to); 97549662Smarcel#endif 976274476Skib error = kern_linkat(td, AT_FDCWD, AT_FDCWD, path, to, UIO_SYSSPACE, 977274476Skib FOLLOW); 978102814Siedowse LFREEPATH(path); 979102814Siedowse LFREEPATH(to); 980102814Siedowse return (error); 98149662Smarcel} 98249788Smarcel 98353713Smarcelint 984177997Skiblinux_linkat(struct thread *td, struct linux_linkat_args *args) 985177997Skib{ 986177997Skib char *path, *to; 987227693Sed int error, olddfd, newdfd, follow; 988177997Skib 989227693Sed if (args->flag & ~LINUX_AT_SYMLINK_FOLLOW) 990177997Skib return (EINVAL); 991177997Skib 992177997Skib olddfd = (args->olddfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->olddfd; 993177997Skib newdfd = (args->newdfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->newdfd; 994177997Skib LCONVPATHEXIST_AT(td, args->oldname, &path, olddfd); 995177997Skib /* Expand LCONVPATHCREATE so that `path' can be freed on errors */ 996177997Skib error = linux_emul_convpath(td, args->newname, UIO_USERSPACE, &to, 1, newdfd); 997177997Skib if (to == NULL) { 998177997Skib LFREEPATH(path); 999177997Skib return (error); 1000177997Skib } 1001177997Skib 1002177997Skib#ifdef DEBUG 1003177997Skib if (ldebug(linkat)) 1004177997Skib printf(ARGS(linkat, "%i, %s, %i, %s, %i"), args->olddfd, path, 1005227693Sed args->newdfd, to, args->flag); 1006177997Skib#endif 1007177997Skib 1008227693Sed follow = (args->flag & LINUX_AT_SYMLINK_FOLLOW) == 0 ? NOFOLLOW : 1009227693Sed FOLLOW; 1010227693Sed error = kern_linkat(td, olddfd, newdfd, path, to, UIO_SYSSPACE, follow); 1011177997Skib LFREEPATH(path); 1012177997Skib LFREEPATH(to); 1013177997Skib return (error); 1014177997Skib} 1015177997Skib 1016177997Skibint 101783366Sjulianlinux_fdatasync(td, uap) 101883366Sjulian struct thread *td; 101953713Smarcel struct linux_fdatasync_args *uap; 102053713Smarcel{ 102153713Smarcel struct fsync_args bsd; 102253713Smarcel 102353713Smarcel bsd.fd = uap->fd; 1024225617Skmacy return sys_fsync(td, &bsd); 102553713Smarcel} 102663285Smarcel 102763285Smarcelint 102883366Sjulianlinux_pread(td, uap) 102983366Sjulian struct thread *td; 103063285Smarcel struct linux_pread_args *uap; 103163285Smarcel{ 103263285Smarcel struct pread_args bsd; 1033255219Spjd cap_rights_t rights; 1034162585Snetchild struct vnode *vp; 1035162585Snetchild int error; 103663285Smarcel 103763285Smarcel bsd.fd = uap->fd; 103863285Smarcel bsd.buf = uap->buf; 103963285Smarcel bsd.nbyte = uap->nbyte; 104063285Smarcel bsd.offset = uap->offset; 1041162585Snetchild 1042225617Skmacy error = sys_pread(td, &bsd); 1043162585Snetchild 1044162585Snetchild if (error == 0) { 1045247602Spjd /* This seems to violate POSIX but linux does it */ 1046255219Spjd error = fgetvp(td, uap->fd, 1047255219Spjd cap_rights_init(&rights, CAP_PREAD), &vp); 1048255219Spjd if (error != 0) 1049247602Spjd return (error); 1050162585Snetchild if (vp->v_type == VDIR) { 1051247602Spjd vrele(vp); 1052162585Snetchild return (EISDIR); 1053162585Snetchild } 1054162585Snetchild vrele(vp); 1055162585Snetchild } 1056162585Snetchild 1057162585Snetchild return (error); 105863285Smarcel} 105963285Smarcel 106063285Smarcelint 106183366Sjulianlinux_pwrite(td, uap) 106283366Sjulian struct thread *td; 106363285Smarcel struct linux_pwrite_args *uap; 106463285Smarcel{ 106563285Smarcel struct pwrite_args bsd; 106663285Smarcel 106763285Smarcel bsd.fd = uap->fd; 106863285Smarcel bsd.buf = uap->buf; 106963285Smarcel bsd.nbyte = uap->nbyte; 107063285Smarcel bsd.offset = uap->offset; 1071225617Skmacy return sys_pwrite(td, &bsd); 107263285Smarcel} 107372538Sjlemon 107472538Sjlemonint 107583366Sjulianlinux_mount(struct thread *td, struct linux_mount_args *args) 107672538Sjlemon{ 1077111798Sdes char fstypename[MFSNAMELEN]; 1078111798Sdes char mntonname[MNAMELEN], mntfromname[MNAMELEN]; 107973286Sadrian int error; 108073286Sadrian int fsflags; 108172538Sjlemon 1082111798Sdes error = copyinstr(args->filesystemtype, fstypename, MFSNAMELEN - 1, 108373286Sadrian NULL); 108472538Sjlemon if (error) 1085111798Sdes return (error); 1086127057Stjr error = copyinstr(args->specialfile, mntfromname, MNAMELEN - 1, NULL); 108772538Sjlemon if (error) 1088111798Sdes return (error); 1089127057Stjr error = copyinstr(args->dir, mntonname, MNAMELEN - 1, NULL); 109072538Sjlemon if (error) 1091111798Sdes return (error); 109272538Sjlemon 109372538Sjlemon#ifdef DEBUG 109472538Sjlemon if (ldebug(mount)) 109572538Sjlemon printf(ARGS(mount, "%s, %s, %s"), 109672538Sjlemon fstypename, mntfromname, mntonname); 109772538Sjlemon#endif 109872538Sjlemon 109972538Sjlemon if (strcmp(fstypename, "ext2") == 0) { 1100127059Stjr strcpy(fstypename, "ext2fs"); 110172538Sjlemon } else if (strcmp(fstypename, "proc") == 0) { 1102127059Stjr strcpy(fstypename, "linprocfs"); 1103190445Sambrisko } else if (strcmp(fstypename, "vfat") == 0) { 1104190445Sambrisko strcpy(fstypename, "msdosfs"); 110572538Sjlemon } 110672538Sjlemon 110773286Sadrian fsflags = 0; 110872538Sjlemon 110972538Sjlemon if ((args->rwflag & 0xffff0000) == 0xc0ed0000) { 111072538Sjlemon /* 111172538Sjlemon * Linux SYNC flag is not included; the closest equivalent 111272538Sjlemon * FreeBSD has is !ASYNC, which is our default. 111372538Sjlemon */ 111472538Sjlemon if (args->rwflag & LINUX_MS_RDONLY) 1115111798Sdes fsflags |= MNT_RDONLY; 111672538Sjlemon if (args->rwflag & LINUX_MS_NOSUID) 1117111798Sdes fsflags |= MNT_NOSUID; 111872538Sjlemon if (args->rwflag & LINUX_MS_NOEXEC) 1119111798Sdes fsflags |= MNT_NOEXEC; 112072538Sjlemon if (args->rwflag & LINUX_MS_REMOUNT) 1121111798Sdes fsflags |= MNT_UPDATE; 112272538Sjlemon } 112372538Sjlemon 1124281689Strasz error = kernel_vmount(fsflags, 1125281689Strasz "fstype", fstypename, 1126281689Strasz "fspath", mntonname, 1127281689Strasz "from", mntfromname, 1128281689Strasz NULL); 1129127059Stjr return (error); 113072538Sjlemon} 113172538Sjlemon 1132283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 113372538Sjlemonint 113483366Sjulianlinux_oldumount(struct thread *td, struct linux_oldumount_args *args) 113572538Sjlemon{ 113683221Smarcel struct linux_umount_args args2; 113772538Sjlemon 113872538Sjlemon args2.path = args->path; 113972538Sjlemon args2.flags = 0; 114083366Sjulian return (linux_umount(td, &args2)); 114172538Sjlemon} 1142283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 114372538Sjlemon 114472538Sjlemonint 114583366Sjulianlinux_umount(struct thread *td, struct linux_umount_args *args) 114672538Sjlemon{ 114772538Sjlemon struct unmount_args bsd; 114872538Sjlemon 114972538Sjlemon bsd.path = args->path; 115072538Sjlemon bsd.flags = args->flags; /* XXX correct? */ 1151225617Skmacy return (sys_unmount(td, &bsd)); 115272538Sjlemon} 115383221Smarcel 115483221Smarcel/* 115583221Smarcel * fcntl family of syscalls 115683221Smarcel */ 115783221Smarcel 115883221Smarcelstruct l_flock { 115983221Smarcel l_short l_type; 116083221Smarcel l_short l_whence; 116183221Smarcel l_off_t l_start; 116283221Smarcel l_off_t l_len; 116383221Smarcel l_pid_t l_pid; 1164133816Stjr} 1165140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1166133816Stjr__packed 1167133816Stjr#endif 1168133816Stjr; 116983221Smarcel 117083221Smarcelstatic void 117183221Smarcellinux_to_bsd_flock(struct l_flock *linux_flock, struct flock *bsd_flock) 117283221Smarcel{ 117383221Smarcel switch (linux_flock->l_type) { 117483221Smarcel case LINUX_F_RDLCK: 117583221Smarcel bsd_flock->l_type = F_RDLCK; 117683221Smarcel break; 117783221Smarcel case LINUX_F_WRLCK: 117883221Smarcel bsd_flock->l_type = F_WRLCK; 117983221Smarcel break; 118083221Smarcel case LINUX_F_UNLCK: 118183221Smarcel bsd_flock->l_type = F_UNLCK; 118283221Smarcel break; 118383221Smarcel default: 118483221Smarcel bsd_flock->l_type = -1; 118583221Smarcel break; 118683221Smarcel } 118783221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 118883221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 118983221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 119083221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1191177633Sdfr bsd_flock->l_sysid = 0; 119283221Smarcel} 119383221Smarcel 119483221Smarcelstatic void 119583221Smarcelbsd_to_linux_flock(struct flock *bsd_flock, struct l_flock *linux_flock) 119683221Smarcel{ 119783221Smarcel switch (bsd_flock->l_type) { 119883221Smarcel case F_RDLCK: 119983221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 120083221Smarcel break; 120183221Smarcel case F_WRLCK: 120283221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 120383221Smarcel break; 120483221Smarcel case F_UNLCK: 120583221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 120683221Smarcel break; 120783221Smarcel } 120883221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 120983221Smarcel linux_flock->l_start = (l_off_t)bsd_flock->l_start; 121083221Smarcel linux_flock->l_len = (l_off_t)bsd_flock->l_len; 121183221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 121283221Smarcel} 121383221Smarcel 1214140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 121583221Smarcelstruct l_flock64 { 121683221Smarcel l_short l_type; 121783221Smarcel l_short l_whence; 121883221Smarcel l_loff_t l_start; 121983221Smarcel l_loff_t l_len; 122083221Smarcel l_pid_t l_pid; 1221133816Stjr} 1222140214Sobrien#if defined(__amd64__) && defined(COMPAT_LINUX32) 1223133816Stjr__packed 1224133816Stjr#endif 1225133816Stjr; 122683221Smarcel 122783221Smarcelstatic void 122883221Smarcellinux_to_bsd_flock64(struct l_flock64 *linux_flock, struct flock *bsd_flock) 122983221Smarcel{ 123083221Smarcel switch (linux_flock->l_type) { 123183221Smarcel case LINUX_F_RDLCK: 123283221Smarcel bsd_flock->l_type = F_RDLCK; 123383221Smarcel break; 123483221Smarcel case LINUX_F_WRLCK: 123583221Smarcel bsd_flock->l_type = F_WRLCK; 123683221Smarcel break; 123783221Smarcel case LINUX_F_UNLCK: 123883221Smarcel bsd_flock->l_type = F_UNLCK; 123983221Smarcel break; 124083221Smarcel default: 124183221Smarcel bsd_flock->l_type = -1; 124283221Smarcel break; 124383221Smarcel } 124483221Smarcel bsd_flock->l_whence = linux_flock->l_whence; 124583221Smarcel bsd_flock->l_start = (off_t)linux_flock->l_start; 124683221Smarcel bsd_flock->l_len = (off_t)linux_flock->l_len; 124783221Smarcel bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 1248177633Sdfr bsd_flock->l_sysid = 0; 124983221Smarcel} 125083221Smarcel 125183221Smarcelstatic void 125283221Smarcelbsd_to_linux_flock64(struct flock *bsd_flock, struct l_flock64 *linux_flock) 125383221Smarcel{ 125483221Smarcel switch (bsd_flock->l_type) { 125583221Smarcel case F_RDLCK: 125683221Smarcel linux_flock->l_type = LINUX_F_RDLCK; 125783221Smarcel break; 125883221Smarcel case F_WRLCK: 125983221Smarcel linux_flock->l_type = LINUX_F_WRLCK; 126083221Smarcel break; 126183221Smarcel case F_UNLCK: 126283221Smarcel linux_flock->l_type = LINUX_F_UNLCK; 126383221Smarcel break; 126483221Smarcel } 126583221Smarcel linux_flock->l_whence = bsd_flock->l_whence; 126683221Smarcel linux_flock->l_start = (l_loff_t)bsd_flock->l_start; 126783221Smarcel linux_flock->l_len = (l_loff_t)bsd_flock->l_len; 126883221Smarcel linux_flock->l_pid = (l_pid_t)bsd_flock->l_pid; 126983221Smarcel} 1270133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 127183221Smarcel 127283221Smarcelstatic int 1273283415Sdchaginfcntl_common(struct thread *td, struct linux_fcntl_args *args) 127483221Smarcel{ 1275107680Siedowse struct l_flock linux_flock; 1276107680Siedowse struct flock bsd_flock; 1277255219Spjd cap_rights_t rights; 127883221Smarcel struct file *fp; 1279102872Siedowse long arg; 128083221Smarcel int error, result; 128183221Smarcel 128283221Smarcel switch (args->cmd) { 128383221Smarcel case LINUX_F_DUPFD: 1284102872Siedowse return (kern_fcntl(td, args->fd, F_DUPFD, args->arg)); 128583221Smarcel 128683221Smarcel case LINUX_F_GETFD: 1287102872Siedowse return (kern_fcntl(td, args->fd, F_GETFD, 0)); 128883221Smarcel 128983221Smarcel case LINUX_F_SETFD: 1290102872Siedowse return (kern_fcntl(td, args->fd, F_SETFD, args->arg)); 129183221Smarcel 129283221Smarcel case LINUX_F_GETFL: 1293102872Siedowse error = kern_fcntl(td, args->fd, F_GETFL, 0); 129483366Sjulian result = td->td_retval[0]; 129583366Sjulian td->td_retval[0] = 0; 129683221Smarcel if (result & O_RDONLY) 129783366Sjulian td->td_retval[0] |= LINUX_O_RDONLY; 129883221Smarcel if (result & O_WRONLY) 129983366Sjulian td->td_retval[0] |= LINUX_O_WRONLY; 130083221Smarcel if (result & O_RDWR) 130183366Sjulian td->td_retval[0] |= LINUX_O_RDWR; 130283221Smarcel if (result & O_NDELAY) 130383366Sjulian td->td_retval[0] |= LINUX_O_NONBLOCK; 130483221Smarcel if (result & O_APPEND) 130583366Sjulian td->td_retval[0] |= LINUX_O_APPEND; 130683221Smarcel if (result & O_FSYNC) 130783366Sjulian td->td_retval[0] |= LINUX_O_SYNC; 130883221Smarcel if (result & O_ASYNC) 130983366Sjulian td->td_retval[0] |= LINUX_FASYNC; 1310144987Smdodd#ifdef LINUX_O_NOFOLLOW 1311144987Smdodd if (result & O_NOFOLLOW) 1312144987Smdodd td->td_retval[0] |= LINUX_O_NOFOLLOW; 1313144987Smdodd#endif 1314144987Smdodd#ifdef LINUX_O_DIRECT 1315144987Smdodd if (result & O_DIRECT) 1316144987Smdodd td->td_retval[0] |= LINUX_O_DIRECT; 1317144987Smdodd#endif 131883221Smarcel return (error); 131983221Smarcel 132083221Smarcel case LINUX_F_SETFL: 1321102872Siedowse arg = 0; 132283221Smarcel if (args->arg & LINUX_O_NDELAY) 1323102872Siedowse arg |= O_NONBLOCK; 132483221Smarcel if (args->arg & LINUX_O_APPEND) 1325102872Siedowse arg |= O_APPEND; 132683221Smarcel if (args->arg & LINUX_O_SYNC) 1327102872Siedowse arg |= O_FSYNC; 132883221Smarcel if (args->arg & LINUX_FASYNC) 1329102872Siedowse arg |= O_ASYNC; 1330144987Smdodd#ifdef LINUX_O_NOFOLLOW 1331144987Smdodd if (args->arg & LINUX_O_NOFOLLOW) 1332144987Smdodd arg |= O_NOFOLLOW; 1333144987Smdodd#endif 1334144987Smdodd#ifdef LINUX_O_DIRECT 1335144987Smdodd if (args->arg & LINUX_O_DIRECT) 1336144987Smdodd arg |= O_DIRECT; 1337144987Smdodd#endif 1338102872Siedowse return (kern_fcntl(td, args->fd, F_SETFL, arg)); 133983221Smarcel 1340107680Siedowse case LINUX_F_GETLK: 1341111797Sdes error = copyin((void *)args->arg, &linux_flock, 1342107680Siedowse sizeof(linux_flock)); 1343107680Siedowse if (error) 1344107680Siedowse return (error); 1345107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1346107680Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 1347107680Siedowse if (error) 1348107680Siedowse return (error); 1349107680Siedowse bsd_to_linux_flock(&bsd_flock, &linux_flock); 1350111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1351107680Siedowse sizeof(linux_flock))); 1352107680Siedowse 1353107680Siedowse case LINUX_F_SETLK: 1354111797Sdes error = copyin((void *)args->arg, &linux_flock, 1355107680Siedowse sizeof(linux_flock)); 1356107680Siedowse if (error) 1357107680Siedowse return (error); 1358107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1359107680Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1360107680Siedowse (intptr_t)&bsd_flock)); 1361107680Siedowse 1362107680Siedowse case LINUX_F_SETLKW: 1363111797Sdes error = copyin((void *)args->arg, &linux_flock, 1364107680Siedowse sizeof(linux_flock)); 1365107680Siedowse if (error) 1366107680Siedowse return (error); 1367107680Siedowse linux_to_bsd_flock(&linux_flock, &bsd_flock); 1368107680Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1369107680Siedowse (intptr_t)&bsd_flock)); 1370107680Siedowse 137183221Smarcel case LINUX_F_GETOWN: 1372102872Siedowse return (kern_fcntl(td, args->fd, F_GETOWN, 0)); 137383221Smarcel 137483221Smarcel case LINUX_F_SETOWN: 137583221Smarcel /* 137683221Smarcel * XXX some Linux applications depend on F_SETOWN having no 137783221Smarcel * significant effect for pipes (SIGIO is not delivered for 137883221Smarcel * pipes under Linux-2.2.35 at least). 137983221Smarcel */ 1380255219Spjd error = fget(td, args->fd, 1381255219Spjd cap_rights_init(&rights, CAP_FCNTL), &fp); 138289319Salfred if (error) 138389319Salfred return (error); 138489306Salfred if (fp->f_type == DTYPE_PIPE) { 138589306Salfred fdrop(fp, td); 138683221Smarcel return (EINVAL); 138789306Salfred } 138889306Salfred fdrop(fp, td); 138983221Smarcel 1390102872Siedowse return (kern_fcntl(td, args->fd, F_SETOWN, args->arg)); 1391283439Sdchagin 1392283439Sdchagin case LINUX_F_DUPFD_CLOEXEC: 1393283439Sdchagin return (kern_fcntl(td, args->fd, F_DUPFD_CLOEXEC, args->arg)); 139483221Smarcel } 139583221Smarcel 139683221Smarcel return (EINVAL); 139783221Smarcel} 139883221Smarcel 139983221Smarcelint 140083366Sjulianlinux_fcntl(struct thread *td, struct linux_fcntl_args *args) 140183221Smarcel{ 140283221Smarcel 140383221Smarcel#ifdef DEBUG 140483221Smarcel if (ldebug(fcntl)) 140583221Smarcel printf(ARGS(fcntl, "%d, %08x, *"), args->fd, args->cmd); 140683221Smarcel#endif 140783221Smarcel 1408283415Sdchagin return (fcntl_common(td, args)); 140983221Smarcel} 141083221Smarcel 1411140214Sobrien#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 141283221Smarcelint 141383366Sjulianlinux_fcntl64(struct thread *td, struct linux_fcntl64_args *args) 141483221Smarcel{ 141583221Smarcel struct l_flock64 linux_flock; 1416102872Siedowse struct flock bsd_flock; 1417283415Sdchagin struct linux_fcntl_args fcntl_args; 141883221Smarcel int error; 141983221Smarcel 142083221Smarcel#ifdef DEBUG 142183221Smarcel if (ldebug(fcntl64)) 142283221Smarcel printf(ARGS(fcntl64, "%d, %08x, *"), args->fd, args->cmd); 142383221Smarcel#endif 142483221Smarcel 142583221Smarcel switch (args->cmd) { 142699687Srobert case LINUX_F_GETLK64: 1427111797Sdes error = copyin((void *)args->arg, &linux_flock, 142883221Smarcel sizeof(linux_flock)); 142983221Smarcel if (error) 143083221Smarcel return (error); 1431102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1432102872Siedowse error = kern_fcntl(td, args->fd, F_GETLK, (intptr_t)&bsd_flock); 143383221Smarcel if (error) 143483221Smarcel return (error); 1435102872Siedowse bsd_to_linux_flock64(&bsd_flock, &linux_flock); 1436111797Sdes return (copyout(&linux_flock, (void *)args->arg, 1437111797Sdes sizeof(linux_flock))); 143883221Smarcel 143999687Srobert case LINUX_F_SETLK64: 1440111797Sdes error = copyin((void *)args->arg, &linux_flock, 144183221Smarcel sizeof(linux_flock)); 144283221Smarcel if (error) 144383221Smarcel return (error); 1444102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1445102872Siedowse return (kern_fcntl(td, args->fd, F_SETLK, 1446102872Siedowse (intptr_t)&bsd_flock)); 144783221Smarcel 144899687Srobert case LINUX_F_SETLKW64: 1449111797Sdes error = copyin((void *)args->arg, &linux_flock, 145083221Smarcel sizeof(linux_flock)); 145183221Smarcel if (error) 145283221Smarcel return (error); 1453102872Siedowse linux_to_bsd_flock64(&linux_flock, &bsd_flock); 1454102872Siedowse return (kern_fcntl(td, args->fd, F_SETLKW, 1455102872Siedowse (intptr_t)&bsd_flock)); 145683221Smarcel } 145783221Smarcel 1458283415Sdchagin fcntl_args.fd = args->fd; 1459283415Sdchagin fcntl_args.cmd = args->cmd; 1460283415Sdchagin fcntl_args.arg = args->arg; 1461283415Sdchagin return (fcntl_common(td, &fcntl_args)); 146283221Smarcel} 1463133816Stjr#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 146485022Smarcel 146585022Smarcelint 146685022Smarcellinux_chown(struct thread *td, struct linux_chown_args *args) 146785022Smarcel{ 1468102814Siedowse char *path; 1469102814Siedowse int error; 147085022Smarcel 1471102814Siedowse LCONVPATHEXIST(td, args->path, &path); 147285022Smarcel 147385022Smarcel#ifdef DEBUG 147485022Smarcel if (ldebug(chown)) 1475102814Siedowse printf(ARGS(chown, "%s, %d, %d"), path, args->uid, args->gid); 147685022Smarcel#endif 1477274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1478274476Skib args->gid, 0); 1479102814Siedowse LFREEPATH(path); 1480102814Siedowse return (error); 148185022Smarcel} 148285022Smarcel 148385022Smarcelint 1484177997Skiblinux_fchownat(struct thread *td, struct linux_fchownat_args *args) 1485177997Skib{ 1486177997Skib char *path; 1487227693Sed int error, dfd, flag; 1488177997Skib 1489177997Skib if (args->flag & ~LINUX_AT_SYMLINK_NOFOLLOW) 1490177997Skib return (EINVAL); 1491177997Skib 1492177997Skib dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; 1493177997Skib LCONVPATHEXIST_AT(td, args->filename, &path, dfd); 1494177997Skib 1495177997Skib#ifdef DEBUG 1496177997Skib if (ldebug(fchownat)) 1497177997Skib printf(ARGS(fchownat, "%s, %d, %d"), path, args->uid, args->gid); 1498177997Skib#endif 1499177997Skib 1500227693Sed flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) == 0 ? 0 : 1501177997Skib AT_SYMLINK_NOFOLLOW; 1502177997Skib error = kern_fchownat(td, dfd, path, UIO_SYSSPACE, args->uid, args->gid, 1503227693Sed flag); 1504177997Skib LFREEPATH(path); 1505177997Skib return (error); 1506177997Skib} 1507177997Skib 1508177997Skibint 150985022Smarcellinux_lchown(struct thread *td, struct linux_lchown_args *args) 151085022Smarcel{ 1511102814Siedowse char *path; 1512102814Siedowse int error; 151385022Smarcel 1514102814Siedowse LCONVPATHEXIST(td, args->path, &path); 151585022Smarcel 151685022Smarcel#ifdef DEBUG 151785022Smarcel if (ldebug(lchown)) 1518102814Siedowse printf(ARGS(lchown, "%s, %d, %d"), path, args->uid, args->gid); 151985022Smarcel#endif 1520274476Skib error = kern_fchownat(td, AT_FDCWD, path, UIO_SYSSPACE, args->uid, 1521274476Skib args->gid, AT_SYMLINK_NOFOLLOW); 1522102814Siedowse LFREEPATH(path); 1523102814Siedowse return (error); 152485022Smarcel} 1525228957Sjhb 1526228957Sjhbstatic int 1527228957Sjhbconvert_fadvice(int advice) 1528228957Sjhb{ 1529228957Sjhb switch (advice) { 1530228957Sjhb case LINUX_POSIX_FADV_NORMAL: 1531228957Sjhb return (POSIX_FADV_NORMAL); 1532228957Sjhb case LINUX_POSIX_FADV_RANDOM: 1533228957Sjhb return (POSIX_FADV_RANDOM); 1534228957Sjhb case LINUX_POSIX_FADV_SEQUENTIAL: 1535228957Sjhb return (POSIX_FADV_SEQUENTIAL); 1536228957Sjhb case LINUX_POSIX_FADV_WILLNEED: 1537228957Sjhb return (POSIX_FADV_WILLNEED); 1538228957Sjhb case LINUX_POSIX_FADV_DONTNEED: 1539228957Sjhb return (POSIX_FADV_DONTNEED); 1540228957Sjhb case LINUX_POSIX_FADV_NOREUSE: 1541228957Sjhb return (POSIX_FADV_NOREUSE); 1542228957Sjhb default: 1543228957Sjhb return (-1); 1544228957Sjhb } 1545228957Sjhb} 1546228957Sjhb 1547228957Sjhbint 1548228957Sjhblinux_fadvise64(struct thread *td, struct linux_fadvise64_args *args) 1549228957Sjhb{ 1550228957Sjhb int advice; 1551228957Sjhb 1552228957Sjhb advice = convert_fadvice(args->advice); 1553228957Sjhb if (advice == -1) 1554228957Sjhb return (EINVAL); 1555228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1556228957Sjhb advice)); 1557228957Sjhb} 1558228957Sjhb 1559283415Sdchagin#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) 1560228957Sjhbint 1561228957Sjhblinux_fadvise64_64(struct thread *td, struct linux_fadvise64_64_args *args) 1562228957Sjhb{ 1563228957Sjhb int advice; 1564228957Sjhb 1565228957Sjhb advice = convert_fadvice(args->advice); 1566228957Sjhb if (advice == -1) 1567228957Sjhb return (EINVAL); 1568228957Sjhb return (kern_posix_fadvise(td, args->fd, args->offset, args->len, 1569228957Sjhb advice)); 1570228957Sjhb} 1571283415Sdchagin#endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ 1572234352Sjkim 1573234352Sjkimint 1574234352Sjkimlinux_pipe(struct thread *td, struct linux_pipe_args *args) 1575234352Sjkim{ 1576234352Sjkim int fildes[2]; 1577234352Sjkim int error; 1578234352Sjkim 1579234352Sjkim#ifdef DEBUG 1580234352Sjkim if (ldebug(pipe)) 1581234352Sjkim printf(ARGS(pipe, "*")); 1582234352Sjkim#endif 1583234352Sjkim 1584286021Sed error = kern_pipe(td, fildes, 0, NULL, NULL); 1585234352Sjkim if (error) 1586234352Sjkim return (error); 1587234352Sjkim 1588234352Sjkim /* XXX: Close descriptors on error. */ 1589234352Sjkim return (copyout(fildes, args->pipefds, sizeof(fildes))); 1590234352Sjkim} 1591234352Sjkim 1592234352Sjkimint 1593234352Sjkimlinux_pipe2(struct thread *td, struct linux_pipe2_args *args) 1594234352Sjkim{ 1595234352Sjkim int fildes[2]; 1596234352Sjkim int error, flags; 1597234352Sjkim 1598234352Sjkim#ifdef DEBUG 1599234352Sjkim if (ldebug(pipe2)) 1600234352Sjkim printf(ARGS(pipe2, "*, %d"), args->flags); 1601234352Sjkim#endif 1602234352Sjkim 1603234352Sjkim if ((args->flags & ~(LINUX_O_NONBLOCK | LINUX_O_CLOEXEC)) != 0) 1604234352Sjkim return (EINVAL); 1605234352Sjkim 1606234352Sjkim flags = 0; 1607234352Sjkim if ((args->flags & LINUX_O_NONBLOCK) != 0) 1608234352Sjkim flags |= O_NONBLOCK; 1609234352Sjkim if ((args->flags & LINUX_O_CLOEXEC) != 0) 1610234352Sjkim flags |= O_CLOEXEC; 1611286021Sed error = kern_pipe(td, fildes, flags, NULL, NULL); 1612234352Sjkim if (error) 1613234352Sjkim return (error); 1614234352Sjkim 1615234352Sjkim /* XXX: Close descriptors on error. */ 1616234352Sjkim return (copyout(fildes, args->pipefds, sizeof(fildes))); 1617234352Sjkim} 1618283399Sdchagin 1619283399Sdchaginint 1620283399Sdchaginlinux_dup3(struct thread *td, struct linux_dup3_args *args) 1621283399Sdchagin{ 1622283399Sdchagin int cmd; 1623283399Sdchagin intptr_t newfd; 1624283399Sdchagin 1625283399Sdchagin if (args->oldfd == args->newfd) 1626283399Sdchagin return (EINVAL); 1627283399Sdchagin if ((args->flags & ~LINUX_O_CLOEXEC) != 0) 1628283399Sdchagin return (EINVAL); 1629283399Sdchagin if (args->flags & LINUX_O_CLOEXEC) 1630283399Sdchagin cmd = F_DUP2FD_CLOEXEC; 1631283399Sdchagin else 1632283399Sdchagin cmd = F_DUP2FD; 1633283399Sdchagin 1634283399Sdchagin newfd = args->newfd; 1635283399Sdchagin return (kern_fcntl(td, args->oldfd, cmd, newfd)); 1636283399Sdchagin} 1637283465Sdchagin 1638283465Sdchaginint 1639283465Sdchaginlinux_fallocate(struct thread *td, struct linux_fallocate_args *args) 1640283465Sdchagin{ 1641283465Sdchagin 1642283465Sdchagin /* 1643283465Sdchagin * We emulate only posix_fallocate system call for which 1644283465Sdchagin * mode should be 0. 1645283465Sdchagin */ 1646283465Sdchagin if (args->mode != 0) 1647283465Sdchagin return (ENOSYS); 1648283465Sdchagin 1649283465Sdchagin return (kern_posix_fallocate(td, args->fd, args->offset, 1650283465Sdchagin args->len)); 1651283465Sdchagin} 1652