diff --git a/sys/compat/linux/linux.h b/sys/compat/linux/linux.h index 48217959951c..18eafa88a432 100644 --- a/sys/compat/linux/linux.h +++ b/sys/compat/linux/linux.h @@ -1,208 +1,250 @@ /*- * Copyright (c) 2015 Dmitry Chagin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _LINUX_MI_H_ #define _LINUX_MI_H_ #include #define LINUX_IFHWADDRLEN 6 #define LINUX_IFNAMSIZ 16 /* * Criteria for interface name translation */ #define IFP_IS_ETH(ifp) (ifp->if_type == IFT_ETHER) #define IFP_IS_LOOP(ifp) (ifp->if_type == IFT_LOOP) struct l_sockaddr { unsigned short sa_family; char sa_data[14]; }; #define LINUX_ARPHRD_ETHER 1 #define LINUX_ARPHRD_LOOPBACK 772 /* * Supported address families */ #define LINUX_AF_UNSPEC 0 #define LINUX_AF_UNIX 1 #define LINUX_AF_INET 2 #define LINUX_AF_AX25 3 #define LINUX_AF_IPX 4 #define LINUX_AF_APPLETALK 5 #define LINUX_AF_INET6 10 #define LINUX_AF_NETLINK 16 #define LINUX_NETLINK_ROUTE 0 #define LINUX_NETLINK_SOCK_DIAG 4 #define LINUX_NETLINK_NFLOG 5 #define LINUX_NETLINK_SELINUX 7 #define LINUX_NETLINK_AUDIT 9 #define LINUX_NETLINK_FIB_LOOKUP 10 #define LINUX_NETLINK_NETFILTER 12 #define LINUX_NETLINK_KOBJECT_UEVENT 15 /* * net device flags */ #define LINUX_IFF_UP 0x0001 #define LINUX_IFF_BROADCAST 0x0002 #define LINUX_IFF_DEBUG 0x0004 #define LINUX_IFF_LOOPBACK 0x0008 #define LINUX_IFF_POINTOPOINT 0x0010 #define LINUX_IFF_NOTRAILERS 0x0020 #define LINUX_IFF_RUNNING 0x0040 #define LINUX_IFF_NOARP 0x0080 #define LINUX_IFF_PROMISC 0x0100 #define LINUX_IFF_ALLMULTI 0x0200 #define LINUX_IFF_MASTER 0x0400 #define LINUX_IFF_SLAVE 0x0800 #define LINUX_IFF_MULTICAST 0x1000 #define LINUX_IFF_PORTSEL 0x2000 #define LINUX_IFF_AUTOMEDIA 0x4000 #define LINUX_IFF_DYNAMIC 0x8000 /* sigaltstack */ #define LINUX_SS_ONSTACK 1 #define LINUX_SS_DISABLE 2 int linux_to_bsd_sigaltstack(int lsa); int bsd_to_linux_sigaltstack(int bsa); /* sigset */ typedef struct { uint64_t __mask; } l_sigset_t; /* primitives to manipulate sigset_t */ #define LINUX_SIGEMPTYSET(set) (set).__mask = 0 #define LINUX_SIGISMEMBER(set, sig) (1UL & ((set).__mask >> _SIG_IDX(sig))) #define LINUX_SIGADDSET(set, sig) (set).__mask |= 1UL << _SIG_IDX(sig) void linux_to_bsd_sigset(l_sigset_t *, sigset_t *); void bsd_to_linux_sigset(sigset_t *, l_sigset_t *); /* signaling */ #define LINUX_SIGHUP 1 #define LINUX_SIGINT 2 #define LINUX_SIGQUIT 3 #define LINUX_SIGILL 4 #define LINUX_SIGTRAP 5 #define LINUX_SIGABRT 6 #define LINUX_SIGIOT LINUX_SIGABRT #define LINUX_SIGBUS 7 #define LINUX_SIGFPE 8 #define LINUX_SIGKILL 9 #define LINUX_SIGUSR1 10 #define LINUX_SIGSEGV 11 #define LINUX_SIGUSR2 12 #define LINUX_SIGPIPE 13 #define LINUX_SIGALRM 14 #define LINUX_SIGTERM 15 #define LINUX_SIGSTKFLT 16 #define LINUX_SIGCHLD 17 #define LINUX_SIGCONT 18 #define LINUX_SIGSTOP 19 #define LINUX_SIGTSTP 20 #define LINUX_SIGTTIN 21 #define LINUX_SIGTTOU 22 #define LINUX_SIGURG 23 #define LINUX_SIGXCPU 24 #define LINUX_SIGXFSZ 25 #define LINUX_SIGVTALRM 26 #define LINUX_SIGPROF 27 #define LINUX_SIGWINCH 28 #define LINUX_SIGIO 29 #define LINUX_SIGPOLL LINUX_SIGIO #define LINUX_SIGPWR 30 #define LINUX_SIGSYS 31 #define LINUX_SIGTBLSZ 31 #define LINUX_SIGRTMIN 32 #define LINUX_SIGRTMAX 64 #define LINUX_SIG_VALID(sig) ((sig) <= LINUX_SIGRTMAX && (sig) > 0) int linux_to_bsd_signal(int sig); int bsd_to_linux_signal(int sig); extern LIST_HEAD(futex_list, futex) futex_list; extern struct mtx futex_mtx; void linux_dev_shm_create(void); void linux_dev_shm_destroy(void); /* * mask=0 is not sensible for this application, so it will be taken to mean * a mask equivalent to the value. Otherwise, (word & mask) == value maps to * (word & ~mask) | value in a bitfield for the platform we're converting to. */ struct bsd_to_linux_bitmap { int bsd_mask; int bsd_value; int linux_mask; int linux_value; }; int bsd_to_linux_bits_(int value, struct bsd_to_linux_bitmap *bitmap, size_t mapcnt, int no_value); int linux_to_bsd_bits_(int value, struct bsd_to_linux_bitmap *bitmap, size_t mapcnt, int no_value); /* * These functions are used for simplification of BSD <-> Linux bit conversions. * Given `value`, a bit field, these functions will walk the given bitmap table * and set the appropriate bits for the target platform. If any bits were * successfully converted, then the return value is the equivalent of value * represented with the bit values appropriate for the target platform. * Otherwise, the value supplied as `no_value` is returned. */ #define bsd_to_linux_bits(_val, _bmap, _noval) \ bsd_to_linux_bits_((_val), (_bmap), nitems((_bmap)), (_noval)) #define linux_to_bsd_bits(_val, _bmap, _noval) \ linux_to_bsd_bits_((_val), (_bmap), nitems((_bmap)), (_noval)) /* * Easy mapping helpers. BITMAP_EASY_LINUX represents a single bit to be * translated, and the FreeBSD and Linux values are supplied. BITMAP_1t1_LINUX * is the extreme version of this, where not only is it a single bit, but the * name of the macro used to represent the Linux version of a bit literally has * LINUX_ prepended to the normal name. */ #define BITMAP_EASY_LINUX(_name, _linux_name) \ { \ .bsd_value = (_name), \ .linux_value = (_linux_name), \ } #define BITMAP_1t1_LINUX(_name) BITMAP_EASY_LINUX(_name, LINUX_##_name) int bsd_to_linux_errno(int error); void linux_check_errtbl(void); +#define STATX_BASIC_STATS 0x07ff +#define STATX_BTIME 0x0800 +#define STATX_ALL 0x0fff + +#define STATX_ATTR_COMPRESSED 0x0004 +#define STATX_ATTR_IMMUTABLE 0x0010 +#define STATX_ATTR_APPEND 0x0020 +#define STATX_ATTR_NODUMP 0x0040 +#define STATX_ATTR_ENCRYPTED 0x0800 +#define STATX_ATTR_AUTOMOUNT 0x1000 + +struct l_statx_timestamp { + int64_t tv_sec; + int32_t tv_nsec; + int32_t __spare0; +}; + +struct l_statx { + uint32_t stx_mask; + uint32_t stx_blksize; + uint64_t stx_attributes; + uint32_t stx_nlink; + uint32_t stx_uid; + uint32_t stx_gid; + uint16_t stx_mode; + uint16_t __spare0[1]; + uint64_t stx_ino; + uint64_t stx_size; + uint64_t stx_blocks; + uint64_t stx_attributes_mask; + struct l_statx_timestamp stx_atime; + struct l_statx_timestamp stx_btime; + struct l_statx_timestamp stx_ctime; + struct l_statx_timestamp stx_mtime; + uint32_t stx_rdev_major; + uint32_t stx_rdev_minor; + uint32_t stx_dev_major; + uint32_t stx_dev_minor; + uint64_t stx_mnt_id; + uint64_t __spare2[13]; +}; + #endif /* _LINUX_MI_H_ */ diff --git a/sys/compat/linux/linux_dummy.c b/sys/compat/linux/linux_dummy.c index fef09809822b..aa579d762c93 100644 --- a/sys/compat/linux/linux_dummy.c +++ b/sys/compat/linux/linux_dummy.c @@ -1,180 +1,178 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2013 Dmitry Chagin * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include /* * Including linux vs linux32 here is arbitrary -- the syscall args structures * (proto.h) are not dereferenced by the DUMMY stub implementations, and * suitable for use by both native and compat32 entrypoints. */ #include #include #include #include /* DTrace init */ LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE); UNIMPLEMENTED(afs_syscall); UNIMPLEMENTED(create_module); /* Added in Linux 1.0 removed in 2.6. */ UNIMPLEMENTED(epoll_ctl_old); UNIMPLEMENTED(epoll_wait_old); UNIMPLEMENTED(get_kernel_syms); /* Added in Linux 1.0 removed in 2.6. */ UNIMPLEMENTED(getpmsg); UNIMPLEMENTED(nfsservctl); /* Added in Linux 2.2 removed in 3.1. */ UNIMPLEMENTED(putpmsg); UNIMPLEMENTED(query_module); /* Added in Linux 2.2 removed in 2.6. */ UNIMPLEMENTED(security); UNIMPLEMENTED(vserver); DUMMY(setfsuid); DUMMY(setfsgid); DUMMY(vhangup); DUMMY(pivot_root); DUMMY(adjtimex); DUMMY(swapoff); DUMMY(init_module); DUMMY(delete_module); DUMMY(lookup_dcookie); DUMMY(remap_file_pages); DUMMY(mbind); DUMMY(get_mempolicy); DUMMY(set_mempolicy); DUMMY(kexec_load); /* Linux 2.6.11: */ DUMMY(add_key); DUMMY(request_key); DUMMY(keyctl); /* Linux 2.6.13: */ DUMMY(ioprio_set); DUMMY(ioprio_get); DUMMY(inotify_add_watch); DUMMY(inotify_rm_watch); /* Linux 2.6.16: */ DUMMY(migrate_pages); DUMMY(unshare); /* Linux 2.6.17: */ DUMMY(tee); DUMMY(vmsplice); /* Linux 2.6.18: */ DUMMY(move_pages); /* Linux 2.6.27: */ DUMMY(signalfd4); DUMMY(inotify_init1); /* Linux 2.6.31: */ DUMMY(perf_event_open); /* Linux 2.6.36: */ DUMMY(fanotify_init); DUMMY(fanotify_mark); /* Linux 2.6.39: */ DUMMY(clock_adjtime); /* Linux 3.0: */ DUMMY(setns); /* Linux 3.2: */ DUMMY(process_vm_readv); DUMMY(process_vm_writev); /* Linux 3.5: */ DUMMY(kcmp); /* Linux 3.8: */ DUMMY(finit_module); DUMMY(sched_setattr); DUMMY(sched_getattr); /* Linux 3.17: */ DUMMY(seccomp); /* Linux 3.18: */ DUMMY(bpf); /* Linux 3.19: */ DUMMY(execveat); /* Linux 4.2: */ DUMMY(userfaultfd); /* Linux 4.3: */ DUMMY(membarrier); /* Linux 4.4: */ DUMMY(mlock2); /* Linux 4.6: */ DUMMY(preadv2); DUMMY(pwritev2); /* Linux 4.8: */ DUMMY(pkey_mprotect); DUMMY(pkey_alloc); DUMMY(pkey_free); DUMMY(open_tree); DUMMY(move_mount); DUMMY(fsopen); DUMMY(fsconfig); DUMMY(fsmount); DUMMY(fspick); DUMMY(pidfd_open); DUMMY(clone3); DUMMY(close_range); DUMMY(openat2); DUMMY(pidfd_getfd); DUMMY(faccessat2); DUMMY(process_madvise); DUMMY(epoll_pwait2); DUMMY(mount_setattr); -/* Linux 4.11: */ -DUMMY(statx); /* Linux 4.18: */ DUMMY(io_pgetevents); DUMMY(rseq); /* Linux 5.0: */ DUMMY(pidfd_send_signal); DUMMY(io_uring_setup); DUMMY(io_uring_enter); DUMMY(io_uring_register); #define DUMMY_XATTR(s) \ int \ linux_ ## s ## xattr( \ struct thread *td, struct linux_ ## s ## xattr_args *arg) \ { \ \ return (EOPNOTSUPP); \ } DUMMY_XATTR(set); DUMMY_XATTR(lset); DUMMY_XATTR(fset); DUMMY_XATTR(get); DUMMY_XATTR(lget); DUMMY_XATTR(fget); DUMMY_XATTR(list); DUMMY_XATTR(llist); DUMMY_XATTR(flist); DUMMY_XATTR(remove); DUMMY_XATTR(lremove); DUMMY_XATTR(fremove); diff --git a/sys/compat/linux/linux_stats.c b/sys/compat/linux/linux_stats.c index c88f6f53bdd7..4e6304500a8b 100644 --- a/sys/compat/linux/linux_stats.c +++ b/sys/compat/linux/linux_stats.c @@ -1,732 +1,799 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 1994-1995 Søren Schmidt * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_compat.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef COMPAT_LINUX32 #include #include #else #include #include #endif #include #include static void translate_vnhook_major_minor(struct vnode *vp, struct stat *sb) { int major, minor; if (vn_isdisk(vp)) { sb->st_mode &= ~S_IFMT; sb->st_mode |= S_IFBLK; } /* * Return the same st_dev for every devfs instance. The reason * for this is to work around an idiosyncrasy of glibc getttynam() * implementation: it checks whether st_dev returned for fd 0 * is the same as st_dev returned for the target of /proc/self/fd/0 * symlink, and with linux chroots having their own devfs instance, * the check will fail if you chroot into it. */ if (rootdevmp != NULL && vp->v_mount->mnt_vfc == rootdevmp->mnt_vfc) sb->st_dev = rootdevmp->mnt_stat.f_fsid.val[0]; if (linux_vn_get_major_minor(vp, &major, &minor) == 0) sb->st_rdev = (major << 8 | minor); } static int linux_kern_statat(struct thread *td, int flag, int fd, const char *path, enum uio_seg pathseg, struct stat *sbp) { return (kern_statat(td, flag, fd, path, pathseg, sbp, translate_vnhook_major_minor)); } #ifdef LINUX_LEGACY_SYSCALLS static int linux_kern_stat(struct thread *td, const char *path, enum uio_seg pathseg, struct stat *sbp) { return (linux_kern_statat(td, 0, AT_FDCWD, path, pathseg, sbp)); } static int linux_kern_lstat(struct thread *td, const char *path, enum uio_seg pathseg, struct stat *sbp) { return (linux_kern_statat(td, AT_SYMLINK_NOFOLLOW, AT_FDCWD, path, pathseg, sbp)); } #endif static void translate_fd_major_minor(struct thread *td, int fd, struct stat *buf) { struct file *fp; struct vnode *vp; struct mount *mp; int major, minor; /* * No capability rights required here. */ if ((!S_ISCHR(buf->st_mode) && !S_ISBLK(buf->st_mode)) || fget(td, fd, &cap_no_rights, &fp) != 0) return; vp = fp->f_vnode; if (vp != NULL && vn_isdisk(vp)) { buf->st_mode &= ~S_IFMT; buf->st_mode |= S_IFBLK; } if (vp != NULL && rootdevmp != NULL) { mp = vp->v_mount; __compiler_membar(); if (mp != NULL && mp->mnt_vfc == rootdevmp->mnt_vfc) buf->st_dev = rootdevmp->mnt_stat.f_fsid.val[0]; } if (linux_vn_get_major_minor(vp, &major, &minor) == 0) { buf->st_rdev = (major << 8 | minor); } else if (fp->f_type == DTYPE_PTS) { struct tty *tp = fp->f_data; /* Convert the numbers for the slave device. */ if (linux_driver_get_major_minor(devtoname(tp->t_dev), &major, &minor) == 0) { buf->st_rdev = (major << 8 | minor); } } fdrop(fp, td); } /* * l_dev_t has the same encoding as dev_t in the latter's low 16 bits, so * truncation of a dev_t to 16 bits gives the same result as unpacking * using major() and minor() and repacking in the l_dev_t format. This * detail is hidden in dev_to_ldev(). Overflow in conversions of dev_t's * are not checked for, as for other fields. * * dev_to_ldev() is only used for translating st_dev. When we convert * st_rdev for copying it out, it isn't really a dev_t, but has already * been translated to an l_dev_t in a nontrivial way. Translating it * again would be illogical but would have no effect since the low 16 * bits have the same encoding. * * The nontrivial translation for st_rdev renumbers some devices, but not * ones that can be mounted on, so it is consistent with the translation * for st_dev except when the renumbering or truncation causes conflicts. */ #define dev_to_ldev(d) ((uint16_t)(d)) static int newstat_copyout(struct stat *buf, void *ubuf) { struct l_newstat tbuf; bzero(&tbuf, sizeof(tbuf)); tbuf.st_dev = dev_to_ldev(buf->st_dev); tbuf.st_ino = buf->st_ino; tbuf.st_mode = buf->st_mode; tbuf.st_nlink = buf->st_nlink; tbuf.st_uid = buf->st_uid; tbuf.st_gid = buf->st_gid; tbuf.st_rdev = buf->st_rdev; tbuf.st_size = buf->st_size; tbuf.st_atim.tv_sec = buf->st_atim.tv_sec; tbuf.st_atim.tv_nsec = buf->st_atim.tv_nsec; tbuf.st_mtim.tv_sec = buf->st_mtim.tv_sec; tbuf.st_mtim.tv_nsec = buf->st_mtim.tv_nsec; tbuf.st_ctim.tv_sec = buf->st_ctim.tv_sec; tbuf.st_ctim.tv_nsec = buf->st_ctim.tv_nsec; tbuf.st_blksize = buf->st_blksize; tbuf.st_blocks = buf->st_blocks; return (copyout(&tbuf, ubuf, sizeof(tbuf))); } +static int +statx_copyout(struct stat *buf, void *ubuf) +{ + struct l_statx tbuf; + + bzero(&tbuf, sizeof(tbuf)); + tbuf.stx_mask = STATX_ALL; + tbuf.stx_blksize = buf->st_blksize; + tbuf.stx_attributes = 0; + tbuf.stx_nlink = buf->st_nlink; + tbuf.stx_uid = buf->st_uid; + tbuf.stx_gid = buf->st_gid; + tbuf.stx_mode = buf->st_mode; + tbuf.stx_ino = buf->st_ino; + tbuf.stx_size = buf->st_size; + tbuf.stx_blocks = buf->st_blocks; + + tbuf.stx_atime.tv_sec = buf->st_atim.tv_sec; + tbuf.stx_atime.tv_nsec = buf->st_atim.tv_nsec; + tbuf.stx_btime.tv_sec = buf->st_birthtim.tv_sec; + tbuf.stx_btime.tv_nsec = buf->st_birthtim.tv_nsec; + tbuf.stx_ctime.tv_sec = buf->st_ctim.tv_sec; + tbuf.stx_ctime.tv_nsec = buf->st_ctim.tv_nsec; + tbuf.stx_mtime.tv_sec = buf->st_mtim.tv_sec; + tbuf.stx_mtime.tv_nsec = buf->st_mtim.tv_nsec; + + tbuf.stx_rdev_major = buf->st_rdev >> 8; + tbuf.stx_rdev_minor = buf->st_rdev & 0xff; + tbuf.stx_dev_major = buf->st_dev >> 8; + tbuf.stx_dev_minor = buf->st_dev & 0xff; + + return (copyout(&tbuf, ubuf, sizeof(tbuf))); +} + #ifdef LINUX_LEGACY_SYSCALLS int linux_newstat(struct thread *td, struct linux_newstat_args *args) { struct stat buf; char *path; int error; if (!LUSECONVPATH(td)) { error = linux_kern_stat(td, args->path, UIO_USERSPACE, &buf); } else { LCONVPATHEXIST(td, args->path, &path); error = linux_kern_stat(td, path, UIO_SYSSPACE, &buf); LFREEPATH(path); } if (error) return (error); return (newstat_copyout(&buf, args->buf)); } int linux_newlstat(struct thread *td, struct linux_newlstat_args *args) { struct stat sb; char *path; int error; if (!LUSECONVPATH(td)) { error = linux_kern_lstat(td, args->path, UIO_USERSPACE, &sb); } else { LCONVPATHEXIST(td, args->path, &path); error = linux_kern_lstat(td, path, UIO_SYSSPACE, &sb); LFREEPATH(path); } if (error) return (error); return (newstat_copyout(&sb, args->buf)); } #endif int linux_newfstat(struct thread *td, struct linux_newfstat_args *args) { struct stat buf; int error; error = kern_fstat(td, args->fd, &buf); translate_fd_major_minor(td, args->fd, &buf); if (!error) error = newstat_copyout(&buf, args->buf); return (error); } #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) static int stat_copyout(struct stat *buf, void *ubuf) { struct l_stat lbuf; bzero(&lbuf, sizeof(lbuf)); lbuf.st_dev = dev_to_ldev(buf->st_dev); lbuf.st_ino = buf->st_ino; lbuf.st_mode = buf->st_mode; lbuf.st_nlink = buf->st_nlink; lbuf.st_uid = buf->st_uid; lbuf.st_gid = buf->st_gid; lbuf.st_rdev = buf->st_rdev; lbuf.st_size = MIN(buf->st_size, INT32_MAX); lbuf.st_atim.tv_sec = buf->st_atim.tv_sec; lbuf.st_atim.tv_nsec = buf->st_atim.tv_nsec; lbuf.st_mtim.tv_sec = buf->st_mtim.tv_sec; lbuf.st_mtim.tv_nsec = buf->st_mtim.tv_nsec; lbuf.st_ctim.tv_sec = buf->st_ctim.tv_sec; lbuf.st_ctim.tv_nsec = buf->st_ctim.tv_nsec; lbuf.st_blksize = buf->st_blksize; lbuf.st_blocks = buf->st_blocks; lbuf.st_flags = buf->st_flags; lbuf.st_gen = buf->st_gen; return (copyout(&lbuf, ubuf, sizeof(lbuf))); } int linux_stat(struct thread *td, struct linux_stat_args *args) { struct stat buf; char *path; int error; if (!LUSECONVPATH(td)) { error = linux_kern_stat(td, args->path, UIO_USERSPACE, &buf); } else { LCONVPATHEXIST(td, args->path, &path); error = linux_kern_stat(td, path, UIO_SYSSPACE, &buf); LFREEPATH(path); } if (error) { return (error); } return (stat_copyout(&buf, args->up)); } int linux_lstat(struct thread *td, struct linux_lstat_args *args) { struct stat buf; char *path; int error; if (!LUSECONVPATH(td)) { error = linux_kern_lstat(td, args->path, UIO_USERSPACE, &buf); } else { LCONVPATHEXIST(td, args->path, &path); error = linux_kern_lstat(td, path, UIO_SYSSPACE, &buf); LFREEPATH(path); } if (error) { return (error); } return (stat_copyout(&buf, args->up)); } #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ struct l_statfs { l_long f_type; l_long f_bsize; l_long f_blocks; l_long f_bfree; l_long f_bavail; l_long f_files; l_long f_ffree; l_fsid_t f_fsid; l_long f_namelen; l_long f_frsize; l_long f_flags; l_long f_spare[4]; }; #define LINUX_CODA_SUPER_MAGIC 0x73757245L #define LINUX_EXT2_SUPER_MAGIC 0xEF53L #define LINUX_HPFS_SUPER_MAGIC 0xf995e849L #define LINUX_ISOFS_SUPER_MAGIC 0x9660L #define LINUX_MSDOS_SUPER_MAGIC 0x4d44L #define LINUX_NCP_SUPER_MAGIC 0x564cL #define LINUX_NFS_SUPER_MAGIC 0x6969L #define LINUX_NTFS_SUPER_MAGIC 0x5346544EL #define LINUX_PROC_SUPER_MAGIC 0x9fa0L #define LINUX_UFS_SUPER_MAGIC 0x00011954L /* XXX - UFS_MAGIC in Linux */ #define LINUX_ZFS_SUPER_MAGIC 0x2FC12FC1 #define LINUX_DEVFS_SUPER_MAGIC 0x1373L #define LINUX_SHMFS_MAGIC 0x01021994 static long bsd_to_linux_ftype(const char *fstypename) { int i; static struct {const char *bsd_name; long linux_type;} b2l_tbl[] = { {"ufs", LINUX_UFS_SUPER_MAGIC}, {"zfs", LINUX_ZFS_SUPER_MAGIC}, {"cd9660", LINUX_ISOFS_SUPER_MAGIC}, {"nfs", LINUX_NFS_SUPER_MAGIC}, {"ext2fs", LINUX_EXT2_SUPER_MAGIC}, {"procfs", LINUX_PROC_SUPER_MAGIC}, {"msdosfs", LINUX_MSDOS_SUPER_MAGIC}, {"ntfs", LINUX_NTFS_SUPER_MAGIC}, {"nwfs", LINUX_NCP_SUPER_MAGIC}, {"hpfs", LINUX_HPFS_SUPER_MAGIC}, {"coda", LINUX_CODA_SUPER_MAGIC}, {"devfs", LINUX_DEVFS_SUPER_MAGIC}, {"tmpfs", LINUX_SHMFS_MAGIC}, {NULL, 0L}}; for (i = 0; b2l_tbl[i].bsd_name != NULL; i++) if (strcmp(b2l_tbl[i].bsd_name, fstypename) == 0) return (b2l_tbl[i].linux_type); return (0L); } static int bsd_to_linux_statfs(struct statfs *bsd_statfs, struct l_statfs *linux_statfs) { #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) uint64_t tmp; #define LINUX_HIBITS 0xffffffff00000000ULL tmp = bsd_statfs->f_blocks | bsd_statfs->f_bfree | bsd_statfs->f_files | bsd_statfs->f_bsize; if ((bsd_statfs->f_bavail != -1 && (bsd_statfs->f_bavail & LINUX_HIBITS)) || (bsd_statfs->f_ffree != -1 && (bsd_statfs->f_ffree & LINUX_HIBITS)) || (tmp & LINUX_HIBITS)) return (EOVERFLOW); #undef LINUX_HIBITS #endif linux_statfs->f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename); linux_statfs->f_bsize = bsd_statfs->f_bsize; linux_statfs->f_blocks = bsd_statfs->f_blocks; linux_statfs->f_bfree = bsd_statfs->f_bfree; linux_statfs->f_bavail = bsd_statfs->f_bavail; linux_statfs->f_ffree = bsd_statfs->f_ffree; linux_statfs->f_files = bsd_statfs->f_files; linux_statfs->f_fsid.val[0] = bsd_statfs->f_fsid.val[0]; linux_statfs->f_fsid.val[1] = bsd_statfs->f_fsid.val[1]; linux_statfs->f_namelen = MAXNAMLEN; linux_statfs->f_frsize = bsd_statfs->f_bsize; linux_statfs->f_flags = 0; memset(linux_statfs->f_spare, 0, sizeof(linux_statfs->f_spare)); return (0); } int linux_statfs(struct thread *td, struct linux_statfs_args *args) { struct l_statfs linux_statfs; struct statfs *bsd_statfs; char *path; int error; if (!LUSECONVPATH(td)) { bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); error = kern_statfs(td, args->path, UIO_USERSPACE, bsd_statfs); } else { LCONVPATHEXIST(td, args->path, &path); bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); error = kern_statfs(td, path, UIO_SYSSPACE, bsd_statfs); LFREEPATH(path); } if (error == 0) error = bsd_to_linux_statfs(bsd_statfs, &linux_statfs); free(bsd_statfs, M_STATFS); if (error != 0) return (error); return (copyout(&linux_statfs, args->buf, sizeof(linux_statfs))); } #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) static void bsd_to_linux_statfs64(struct statfs *bsd_statfs, struct l_statfs64 *linux_statfs) { linux_statfs->f_type = bsd_to_linux_ftype(bsd_statfs->f_fstypename); linux_statfs->f_bsize = bsd_statfs->f_bsize; linux_statfs->f_blocks = bsd_statfs->f_blocks; linux_statfs->f_bfree = bsd_statfs->f_bfree; linux_statfs->f_bavail = bsd_statfs->f_bavail; linux_statfs->f_ffree = bsd_statfs->f_ffree; linux_statfs->f_files = bsd_statfs->f_files; linux_statfs->f_fsid.val[0] = bsd_statfs->f_fsid.val[0]; linux_statfs->f_fsid.val[1] = bsd_statfs->f_fsid.val[1]; linux_statfs->f_namelen = MAXNAMLEN; linux_statfs->f_frsize = bsd_statfs->f_bsize; linux_statfs->f_flags = 0; memset(linux_statfs->f_spare, 0, sizeof(linux_statfs->f_spare)); } int linux_statfs64(struct thread *td, struct linux_statfs64_args *args) { struct l_statfs64 linux_statfs; struct statfs *bsd_statfs; char *path; int error; if (args->bufsize != sizeof(struct l_statfs64)) return (EINVAL); if (!LUSECONVPATH(td)) { bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); error = kern_statfs(td, args->path, UIO_USERSPACE, bsd_statfs); } else { LCONVPATHEXIST(td, args->path, &path); bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); error = kern_statfs(td, path, UIO_SYSSPACE, bsd_statfs); LFREEPATH(path); } if (error == 0) bsd_to_linux_statfs64(bsd_statfs, &linux_statfs); free(bsd_statfs, M_STATFS); if (error != 0) return (error); return (copyout(&linux_statfs, args->buf, sizeof(linux_statfs))); } int linux_fstatfs64(struct thread *td, struct linux_fstatfs64_args *args) { struct l_statfs64 linux_statfs; struct statfs *bsd_statfs; int error; if (args->bufsize != sizeof(struct l_statfs64)) return (EINVAL); bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); error = kern_fstatfs(td, args->fd, bsd_statfs); if (error == 0) bsd_to_linux_statfs64(bsd_statfs, &linux_statfs); free(bsd_statfs, M_STATFS); if (error != 0) return (error); return (copyout(&linux_statfs, args->buf, sizeof(linux_statfs))); } #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ int linux_fstatfs(struct thread *td, struct linux_fstatfs_args *args) { struct l_statfs linux_statfs; struct statfs *bsd_statfs; int error; bsd_statfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); error = kern_fstatfs(td, args->fd, bsd_statfs); if (error == 0) error = bsd_to_linux_statfs(bsd_statfs, &linux_statfs); free(bsd_statfs, M_STATFS); if (error != 0) return (error); return (copyout(&linux_statfs, args->buf, sizeof(linux_statfs))); } struct l_ustat { l_daddr_t f_tfree; l_ino_t f_tinode; char f_fname[6]; char f_fpack[6]; }; #ifdef LINUX_LEGACY_SYSCALLS int linux_ustat(struct thread *td, struct linux_ustat_args *args) { return (EOPNOTSUPP); } #endif #if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32)) static int stat64_copyout(struct stat *buf, void *ubuf) { struct l_stat64 lbuf; bzero(&lbuf, sizeof(lbuf)); lbuf.st_dev = dev_to_ldev(buf->st_dev); lbuf.st_ino = buf->st_ino; lbuf.st_mode = buf->st_mode; lbuf.st_nlink = buf->st_nlink; lbuf.st_uid = buf->st_uid; lbuf.st_gid = buf->st_gid; lbuf.st_rdev = buf->st_rdev; lbuf.st_size = buf->st_size; lbuf.st_atim.tv_sec = buf->st_atim.tv_sec; lbuf.st_atim.tv_nsec = buf->st_atim.tv_nsec; lbuf.st_mtim.tv_sec = buf->st_mtim.tv_sec; lbuf.st_mtim.tv_nsec = buf->st_mtim.tv_nsec; lbuf.st_ctim.tv_sec = buf->st_ctim.tv_sec; lbuf.st_ctim.tv_nsec = buf->st_ctim.tv_nsec; lbuf.st_blksize = buf->st_blksize; lbuf.st_blocks = buf->st_blocks; /* * The __st_ino field makes all the difference. In the Linux kernel * it is conditionally compiled based on STAT64_HAS_BROKEN_ST_INO, * but without the assignment to __st_ino the runtime linker refuses * to mmap(2) any shared libraries. I guess it's broken alright :-) */ lbuf.__st_ino = buf->st_ino; return (copyout(&lbuf, ubuf, sizeof(lbuf))); } int linux_stat64(struct thread *td, struct linux_stat64_args *args) { struct stat buf; char *filename; int error; if (!LUSECONVPATH(td)) { error = linux_kern_stat(td, args->filename, UIO_USERSPACE, &buf); } else { LCONVPATHEXIST(td, args->filename, &filename); error = linux_kern_stat(td, filename, UIO_SYSSPACE, &buf); LFREEPATH(filename); } if (error) return (error); return (stat64_copyout(&buf, args->statbuf)); } int linux_lstat64(struct thread *td, struct linux_lstat64_args *args) { struct stat sb; char *filename; int error; if (!LUSECONVPATH(td)) { error = linux_kern_lstat(td, args->filename, UIO_USERSPACE, &sb); } else { LCONVPATHEXIST(td, args->filename, &filename); error = linux_kern_lstat(td, filename, UIO_SYSSPACE, &sb); LFREEPATH(filename); } if (error) return (error); return (stat64_copyout(&sb, args->statbuf)); } int linux_fstat64(struct thread *td, struct linux_fstat64_args *args) { struct stat buf; int error; error = kern_fstat(td, args->fd, &buf); translate_fd_major_minor(td, args->fd, &buf); if (!error) error = stat64_copyout(&buf, args->statbuf); return (error); } int linux_fstatat64(struct thread *td, struct linux_fstatat64_args *args) { char *path; int error, dfd, flag; struct stat buf; if (args->flag & ~(LINUX_AT_SYMLINK_NOFOLLOW | LINUX_AT_EMPTY_PATH)) { linux_msg(td, "fstatat64 unsupported flag 0x%x", args->flag); return (EINVAL); } flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) ? AT_SYMLINK_NOFOLLOW : 0; flag |= (args->flag & LINUX_AT_EMPTY_PATH) ? AT_EMPTY_PATH : 0; dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; if (!LUSECONVPATH(td)) { error = linux_kern_statat(td, flag, dfd, args->pathname, UIO_USERSPACE, &buf); } else { LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); error = linux_kern_statat(td, flag, dfd, path, UIO_SYSSPACE, &buf); LFREEPATH(path); } if (error == 0) error = stat64_copyout(&buf, args->statbuf); return (error); } #else /* __amd64__ && !COMPAT_LINUX32 */ int linux_newfstatat(struct thread *td, struct linux_newfstatat_args *args) { char *path; int error, dfd, flag; struct stat buf; if (args->flag & ~(LINUX_AT_SYMLINK_NOFOLLOW | LINUX_AT_EMPTY_PATH)) { linux_msg(td, "fstatat unsupported flag 0x%x", args->flag); return (EINVAL); } flag = (args->flag & LINUX_AT_SYMLINK_NOFOLLOW) ? AT_SYMLINK_NOFOLLOW : 0; flag |= (args->flag & LINUX_AT_EMPTY_PATH) ? AT_EMPTY_PATH : 0; dfd = (args->dfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dfd; if (!LUSECONVPATH(td)) { error = linux_kern_statat(td, flag, dfd, args->pathname, UIO_USERSPACE, &buf); } else { LCONVPATHEXIST_AT(td, args->pathname, &path, dfd); error = linux_kern_statat(td, flag, dfd, path, UIO_SYSSPACE, &buf); LFREEPATH(path); } if (error == 0) error = newstat_copyout(&buf, args->statbuf); return (error); } #endif /* __i386__ || (__amd64__ && COMPAT_LINUX32) */ int linux_syncfs(struct thread *td, struct linux_syncfs_args *args) { struct mount *mp; struct vnode *vp; int error, save; error = fgetvp(td, args->fd, &cap_fsync_rights, &vp); if (error != 0) /* * Linux syncfs() returns only EBADF, however fgetvp() * can return EINVAL in case of file descriptor does * not represent a vnode. XXX. */ return (error); mp = vp->v_mount; mtx_lock(&mountlist_mtx); error = vfs_busy(mp, MBF_MNTLSTLOCK); if (error != 0) { /* See comment above. */ mtx_unlock(&mountlist_mtx); goto out; } if ((mp->mnt_flag & MNT_RDONLY) == 0 && vn_start_write(NULL, &mp, V_NOWAIT) == 0) { save = curthread_pflags_set(TDP_SYNCIO); vfs_periodic(mp, MNT_NOWAIT); VFS_SYNC(mp, MNT_NOWAIT); curthread_pflags_restore(save); vn_finished_write(mp); } vfs_unbusy(mp); out: vrele(vp); return (error); } + +int +linux_statx(struct thread *td, struct linux_statx_args *args) +{ + char *path; + int error, dirfd, flags; + struct stat buf; + + if (args->flags & ~(LINUX_AT_SYMLINK_NOFOLLOW | LINUX_AT_EMPTY_PATH)) { + linux_msg(td, "statx unsupported flags 0x%x", args->flags); + return (EINVAL); + } + + flags = (args->flags & LINUX_AT_SYMLINK_NOFOLLOW) ? + AT_SYMLINK_NOFOLLOW : 0; + flags |= (args->flags & LINUX_AT_EMPTY_PATH) ? + AT_EMPTY_PATH : 0; + + dirfd = (args->dirfd == LINUX_AT_FDCWD) ? AT_FDCWD : args->dirfd; + if (!LUSECONVPATH(td)) { + error = linux_kern_statat(td, flags, dirfd, args->pathname, + UIO_USERSPACE, &buf); + } else { + LCONVPATHEXIST_AT(td, args->pathname, &path, dirfd); + error = linux_kern_statat(td, flags, dirfd, path, UIO_SYSSPACE, &buf); + LFREEPATH(path); + } + if (error == 0) + error = statx_copyout(&buf, args->statxbuf); + + return (error); +} +