/* $Id: vboxfs_prov.c 96407 2022-08-22 17:43:14Z vboxsync $ */ /** @file * VirtualBox File System for Solaris Guests, provider implementation. * Portions contributed by: Ronald. */ /* * Copyright (C) 2008-2022 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, in version 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included * in the VirtualBox distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. * * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 */ /* * Provider interfaces for shared folder file system. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #undef u /* /usr/include/sys/user.h:249:1 is where this is defined to (curproc->p_user). very cool. */ #include "vboxfs_prov.h" #include #define SFPROV_VERSION 1 static VBGLSFCLIENT vbox_client; static int sfprov_vbox2errno(int rc) { if (rc == VERR_ACCESS_DENIED) return (EACCES); if (rc == VERR_INVALID_NAME) return (ENOENT); return (RTErrConvertToErrno(rc)); } /* * utility to create strings */ static SHFLSTRING * sfprov_string(char *path, int *sz) { SHFLSTRING *str; int len = strlen(path); *sz = len + 1 + sizeof (*str) - sizeof (str->String); str = kmem_zalloc(*sz, KM_SLEEP); str->u16Size = len + 1; str->u16Length = len; strcpy(str->String.utf8, path); return (str); } sfp_connection_t * sfprov_connect(int version) { /* * only one version for now, so must match */ int rc = -1; if (version != SFPROV_VERSION) { cmn_err(CE_WARN, "sfprov_connect: wrong version. version=%d expected=%d\n", version, SFPROV_VERSION); return NULL; } rc = VbglR0SfInit(); if (RT_SUCCESS(rc)) { rc = VbglR0SfConnect(&vbox_client); if (RT_SUCCESS(rc)) { rc = VbglR0SfSetUtf8(&vbox_client); if (RT_SUCCESS(rc)) { return ((sfp_connection_t *)&vbox_client); } else cmn_err(CE_WARN, "sfprov_connect: VbglR0SfSetUtf8() failed\n"); VbglR0SfDisconnect(&vbox_client); } else cmn_err(CE_WARN, "sfprov_connect: VbglR0SfConnect() failed rc=%d\n", rc); VbglR0SfTerm(); } else cmn_err(CE_WARN, "sfprov_connect: VbglR0SfInit() failed rc=%d\n", rc); return (NULL); } void sfprov_disconnect(sfp_connection_t *conn) { if (conn != (sfp_connection_t *)&vbox_client) cmn_err(CE_WARN, "sfprov_disconnect: bad argument\n"); VbglR0SfDisconnect(&vbox_client); VbglR0SfTerm(); } int sfprov_mount(sfp_connection_t *conn, char *path, sfp_mount_t **mnt) { sfp_mount_t *m; SHFLSTRING *str; int size; int rc; m = kmem_zalloc(sizeof (*m), KM_SLEEP); str = sfprov_string(path, &size); rc = VbglR0SfMapFolder(&vbox_client, str, &m->map); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_mount: VbglR0SfMapFolder() failed. path=%s rc=%d\n", path, rc); kmem_free(m, sizeof (*m)); *mnt = NULL; rc = EINVAL; } else { *mnt = m; rc = 0; } kmem_free(str, size); return (rc); } int sfprov_unmount(sfp_mount_t *mnt) { int rc; rc = VbglR0SfUnmapFolder(&vbox_client, &mnt->map); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_mount: VbglR0SfUnmapFolder() failed rc=%d\n", rc); rc = EINVAL; } else { rc = 0; } kmem_free(mnt, sizeof (*mnt)); return (rc); } /* * query information about a mounted file system */ int sfprov_get_fsinfo(sfp_mount_t *mnt, sffs_fsinfo_t *fsinfo) { int rc; SHFLVOLINFO info; uint32_t bytes = sizeof(SHFLVOLINFO); rc = VbglR0SfFsInfo(&vbox_client, &mnt->map, 0, SHFL_INFO_GET | SHFL_INFO_VOLUME, &bytes, (SHFLDIRINFO *)&info); if (RT_FAILURE(rc)) return (EINVAL); fsinfo->blksize = info.ulBytesPerAllocationUnit; fsinfo->blksused = (info.ullTotalAllocationBytes - info.ullAvailableAllocationBytes) / info.ulBytesPerAllocationUnit; fsinfo->blksavail = info.ullAvailableAllocationBytes / info.ulBytesPerAllocationUnit; fsinfo->maxnamesize = info.fsProperties.cbMaxComponent; fsinfo->readonly = info.fsProperties.fReadOnly; return (0); } /* * file/directory information conversions. */ static void sfprov_fmode_from_mode(RTFMODE *fMode, mode_t mode) { RTFMODE m = 0; #define mode_set(r) ((mode) & (S_##r)) ? RTFS_UNIX_##r : 0 m = mode_set (ISUID); m |= mode_set (ISGID); m |= (mode & S_ISVTX) ? RTFS_UNIX_ISTXT : 0; m |= mode_set (IRUSR); m |= mode_set (IWUSR); m |= mode_set (IXUSR); m |= mode_set (IRGRP); m |= mode_set (IWGRP); m |= mode_set (IXGRP); m |= mode_set (IROTH); m |= mode_set (IWOTH); m |= mode_set (IXOTH); #undef mode_set if (S_ISDIR(mode)) m |= RTFS_TYPE_DIRECTORY; else if (S_ISREG(mode)) m |= RTFS_TYPE_FILE; else if (S_ISFIFO(mode)) m |= RTFS_TYPE_FIFO; else if (S_ISCHR(mode)) m |= RTFS_TYPE_DEV_CHAR; else if (S_ISBLK(mode)) m |= RTFS_TYPE_DEV_BLOCK; else if (S_ISLNK(mode)) m |= RTFS_TYPE_SYMLINK; else if (S_ISSOCK(mode)) m |= RTFS_TYPE_SOCKET; else m |= RTFS_TYPE_FILE; *fMode = m; } static void sfprov_mode_from_fmode(sfp_mount_t *mnt, mode_t *mode, RTFMODE fMode) { mode_t m = 0; #define mode_set_from_rt(r) ((fMode) & (RTFS_UNIX_##r)) ? (S_##r) : 0; m = mode_set_from_rt(ISUID); m |= mode_set_from_rt(ISGID); m |= (fMode & RTFS_UNIX_ISTXT) ? S_ISVTX : 0; m |= mode_set_from_rt(IRUSR); m |= mode_set_from_rt(IWUSR); m |= mode_set_from_rt(IXUSR); m |= mode_set_from_rt(IRGRP); m |= mode_set_from_rt(IWGRP); m |= mode_set_from_rt(IXGRP); m |= mode_set_from_rt(IROTH); m |= mode_set_from_rt(IWOTH); m |= mode_set_from_rt(IXOTH); #undef mode_set_from_rt if (RTFS_IS_DIRECTORY(fMode)) { m = mnt->sf_dmode != ~0U ? (mnt->sf_dmode & PERMMASK) : m; m &= ~mnt->sf_dmask; m |= S_IFDIR; } else { m = mnt->sf_fmode != ~0U ? (mnt->sf_fmode & PERMMASK) : m; m &= ~mnt->sf_fmask; if (RTFS_IS_FILE(fMode)) m |= S_IFREG; else if (RTFS_IS_SYMLINK(fMode)) m |= S_IFLNK; else if (RTFS_IS_FIFO(fMode)) m |= S_IFIFO; else if (RTFS_IS_DEV_CHAR(fMode)) m |= S_IFCHR; else if (RTFS_IS_DEV_BLOCK(fMode)) m |= S_IFBLK; else if (RTFS_IS_SOCKET(fMode)) m |= S_IFSOCK; } *mode = m; } static void sfprov_ftime_from_timespec(timestruc_t *time, RTTIMESPEC *ts) { uint64_t nanosec = RTTimeSpecGetNano(ts); time->tv_sec = nanosec / UINT64_C(1000000000); time->tv_nsec = nanosec % UINT64_C(1000000000); } static void sfprov_stat_from_info(sfp_mount_t *mnt, sffs_stat_t *stat, SHFLFSOBJINFO *info) { sfprov_mode_from_fmode(mnt, &stat->sf_mode, info->Attr.fMode); stat->sf_size = info->cbObject; stat->sf_alloc = info->cbAllocated; sfprov_ftime_from_timespec(&stat->sf_atime, &info->AccessTime); sfprov_ftime_from_timespec(&stat->sf_mtime, &info->ModificationTime); sfprov_ftime_from_timespec(&stat->sf_ctime, &info->ChangeTime); } /* * File operations: open/close/read/write/etc. * * open/create can return any relevant errno, however ENOENT * generally means that the host file didn't exist. */ struct sfp_file { SHFLHANDLE handle; VBGLSFMAP map; /**< need this again for the close operation */ }; int sfprov_create( sfp_mount_t *mnt, char *path, mode_t mode, sfp_file_t **fp, sffs_stat_t *stat) { int rc; SHFLCREATEPARMS parms; SHFLSTRING *str; int size; sfp_file_t *newfp; str = sfprov_string(path, &size); parms.Handle = SHFL_HANDLE_NIL; parms.Info.cbObject = 0; sfprov_fmode_from_mode(&parms.Info.Attr.fMode, mode); parms.CreateFlags = SHFL_CF_ACT_CREATE_IF_NEW | SHFL_CF_ACT_REPLACE_IF_EXISTS | SHFL_CF_ACCESS_READWRITE; rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); kmem_free(str, size); if (RT_FAILURE(rc)) { if (rc != VERR_ACCESS_DENIED && rc != VERR_WRITE_PROTECT) cmn_err(CE_WARN, "sfprov_create: VbglR0SfCreate failed! path=%s rc=%d\n", path, rc); return (sfprov_vbox2errno(rc)); } if (parms.Handle == SHFL_HANDLE_NIL) { if (parms.Result == SHFL_FILE_EXISTS) return (EEXIST); return (ENOENT); } newfp = kmem_alloc(sizeof(sfp_file_t), KM_SLEEP); newfp->handle = parms.Handle; newfp->map = mnt->map; *fp = newfp; sfprov_stat_from_info(mnt, stat, &parms.Info); return (0); } int sfprov_diropen(sfp_mount_t *mnt, char *path, sfp_file_t **fp) { int rc; SHFLCREATEPARMS parms; SHFLSTRING *str; int size; sfp_file_t *newfp; bzero(&parms, sizeof(parms)); str = sfprov_string(path, &size); parms.Handle = SHFL_HANDLE_NIL; parms.Info.cbObject = 0; parms.CreateFlags = SHFL_CF_DIRECTORY | SHFL_CF_ACCESS_READ | SHFL_CF_ACT_OPEN_IF_EXISTS | SHFL_CF_ACT_FAIL_IF_NEW; /* * Open the host directory. */ rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); /* * Our VBoxFS interface here isn't very clear regarding failure and informational status. * Check the file-handle as well as the return code to make sure the operation succeeded. */ if (RT_FAILURE(rc)) { kmem_free(str, size); return (sfprov_vbox2errno(rc)); } if (parms.Handle == SHFL_HANDLE_NIL) { kmem_free(str, size); return (ENOENT); } newfp = kmem_alloc(sizeof(sfp_file_t), KM_SLEEP); newfp->handle = parms.Handle; newfp->map = mnt->map; *fp = newfp; return (0); } int sfprov_open(sfp_mount_t *mnt, char *path, sfp_file_t **fp, int flag) { int rc; SHFLCREATEPARMS parms; SHFLSTRING *str; int size; sfp_file_t *newfp; bzero(&parms, sizeof(parms)); str = sfprov_string(path, &size); parms.Handle = SHFL_HANDLE_NIL; parms.Info.cbObject = 0; /* * Translate file modes. */ if (flag & FCREAT) { parms.CreateFlags |= SHFL_CF_ACT_CREATE_IF_NEW; if (!(flag & FTRUNC)) parms.CreateFlags |= SHFL_CF_ACT_OPEN_IF_EXISTS; } else parms.CreateFlags |= SHFL_CF_ACT_FAIL_IF_NEW; if (flag & FTRUNC) parms.CreateFlags |= SHFL_CF_ACT_OVERWRITE_IF_EXISTS | SHFL_CF_ACCESS_WRITE; if (flag & FWRITE) parms.CreateFlags |= SHFL_CF_ACCESS_WRITE; if (flag & FREAD) parms.CreateFlags |= SHFL_CF_ACCESS_READ; if (flag & FAPPEND) parms.CreateFlags |= SHFL_CF_ACCESS_APPEND; /* * Open/create the host file. */ rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); /* * Our VBoxFS interface here isn't very clear regarding failure and informational status. * Check the file-handle as well as the return code to make sure the operation succeeded. */ if (RT_FAILURE(rc)) { kmem_free(str, size); return (sfprov_vbox2errno(rc)); } if (parms.Handle == SHFL_HANDLE_NIL) { kmem_free(str, size); return (ENOENT); } newfp = kmem_alloc(sizeof(sfp_file_t), KM_SLEEP); newfp->handle = parms.Handle; newfp->map = mnt->map; *fp = newfp; return (0); } int sfprov_close(sfp_file_t *fp) { int rc; rc = VbglR0SfClose(&vbox_client, &fp->map, fp->handle); kmem_free(fp, sizeof(sfp_file_t)); return (0); } int sfprov_read(sfp_file_t *fp, char *buffer, uint64_t offset, uint32_t *numbytes) { int rc; rc = VbglR0SfRead(&vbox_client, &fp->map, fp->handle, offset, numbytes, (uint8_t *)buffer, 0 /*fLocked*/); if (RT_FAILURE(rc)) return (EINVAL); return (0); } int sfprov_write(sfp_file_t *fp, char *buffer, uint64_t offset, uint32_t *numbytes) { int rc; rc = VbglR0SfWrite(&vbox_client, &fp->map, fp->handle, offset, numbytes, (uint8_t *)buffer, 0 /*fLocked*/); if (RT_FAILURE(rc)) return (EINVAL); return (0); } int sfprov_fsync(sfp_file_t *fp) { int rc; rc = VbglR0SfFlush(&vbox_client, &fp->map, fp->handle); if (RT_FAILURE(rc)) return (EIO); return (0); } static int sfprov_getinfo(sfp_mount_t *mnt, char *path, PSHFLFSOBJINFO info) { int rc; SHFLCREATEPARMS parms; SHFLSTRING *str; int size; str = sfprov_string(path, &size); parms.Handle = 0; parms.Info.cbObject = 0; parms.CreateFlags = SHFL_CF_LOOKUP | SHFL_CF_ACT_FAIL_IF_NEW; rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); kmem_free(str, size); if (RT_FAILURE(rc)) return (EINVAL); if (parms.Result != SHFL_FILE_EXISTS) return (ENOENT); *info = parms.Info; return (0); } /* * get information about a file (or directory) */ int sfprov_get_mode(sfp_mount_t *mnt, char *path, mode_t *mode) { int rc; SHFLFSOBJINFO info; rc = sfprov_getinfo(mnt, path, &info); if (rc) return (rc); sfprov_mode_from_fmode(mnt, mode, info.Attr.fMode); return (0); } int sfprov_get_size(sfp_mount_t *mnt, char *path, uint64_t *size) { int rc; SHFLFSOBJINFO info; rc = sfprov_getinfo(mnt, path, &info); if (rc) return (rc); *size = info.cbObject; return (0); } int sfprov_get_atime(sfp_mount_t *mnt, char *path, timestruc_t *time) { int rc; SHFLFSOBJINFO info; rc = sfprov_getinfo(mnt, path, &info); if (rc) return (rc); sfprov_ftime_from_timespec(time, &info.AccessTime); return (0); } int sfprov_get_mtime(sfp_mount_t *mnt, char *path, timestruc_t *time) { int rc; SHFLFSOBJINFO info; rc = sfprov_getinfo(mnt, path, &info); if (rc) return (rc); sfprov_ftime_from_timespec(time, &info.ModificationTime); return (0); } int sfprov_get_ctime(sfp_mount_t *mnt, char *path, timestruc_t *time) { int rc; SHFLFSOBJINFO info; rc = sfprov_getinfo(mnt, path, &info); if (rc) return (rc); sfprov_ftime_from_timespec(time, &info.ChangeTime); return (0); } int sfprov_get_attr(sfp_mount_t *mnt, char *path, sffs_stat_t *attr) { int rc; SHFLFSOBJINFO info; rc = sfprov_getinfo(mnt, path, &info); if (rc) return (rc); sfprov_stat_from_info(mnt, attr, &info); return (0); } static void sfprov_timespec_from_ftime(RTTIMESPEC *ts, timestruc_t time) { uint64_t nanosec = UINT64_C(1000000000) * time.tv_sec + time.tv_nsec; RTTimeSpecSetNano(ts, nanosec); } int sfprov_set_attr( sfp_mount_t *mnt, char *path, uint_t mask, mode_t mode, timestruc_t atime, timestruc_t mtime, timestruc_t ctime) { int rc, err; SHFLCREATEPARMS parms; SHFLSTRING *str; SHFLFSOBJINFO info; uint32_t bytes; int str_size; str = sfprov_string(path, &str_size); parms.Handle = 0; parms.Info.cbObject = 0; parms.CreateFlags = SHFL_CF_ACT_OPEN_IF_EXISTS | SHFL_CF_ACT_FAIL_IF_NEW | SHFL_CF_ACCESS_ATTR_WRITE; rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_set_attr: VbglR0SfCreate(%s) failed rc=%d\n", path, rc); err = EINVAL; goto fail2; } if (parms.Result != SHFL_FILE_EXISTS) { err = ENOENT; goto fail1; } RT_ZERO(info); if (mask & AT_MODE) sfprov_fmode_from_mode(&info.Attr.fMode, mode); if (mask & AT_ATIME) sfprov_timespec_from_ftime(&info.AccessTime, atime); if (mask & AT_MTIME) sfprov_timespec_from_ftime(&info.ModificationTime, mtime); if (mask & AT_CTIME) sfprov_timespec_from_ftime(&info.ChangeTime, ctime); bytes = sizeof(info); rc = VbglR0SfFsInfo(&vbox_client, &mnt->map, parms.Handle, SHFL_INFO_SET | SHFL_INFO_FILE, &bytes, (SHFLDIRINFO *)&info); if (RT_FAILURE(rc)) { if (rc != VERR_ACCESS_DENIED && rc != VERR_WRITE_PROTECT) { cmn_err(CE_WARN, "sfprov_set_attr: VbglR0SfFsInfo(%s, FILE) failed rc=%d\n", path, rc); } err = sfprov_vbox2errno(rc); goto fail1; } err = 0; fail1: rc = VbglR0SfClose(&vbox_client, &mnt->map, parms.Handle); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_set_attr: VbglR0SfClose(%s) failed rc=%d\n", path, rc); } fail2: kmem_free(str, str_size); return err; } int sfprov_set_size(sfp_mount_t *mnt, char *path, uint64_t size) { int rc, err; SHFLCREATEPARMS parms; SHFLSTRING *str; SHFLFSOBJINFO info; uint32_t bytes; int str_size; str = sfprov_string(path, &str_size); parms.Handle = 0; parms.Info.cbObject = 0; parms.CreateFlags = SHFL_CF_ACT_OPEN_IF_EXISTS | SHFL_CF_ACT_FAIL_IF_NEW | SHFL_CF_ACCESS_WRITE; rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_set_size: VbglR0SfCreate(%s) failed rc=%d\n", path, rc); err = EINVAL; goto fail2; } if (parms.Result != SHFL_FILE_EXISTS) { err = ENOENT; goto fail1; } RT_ZERO(info); info.cbObject = size; bytes = sizeof(info); rc = VbglR0SfFsInfo(&vbox_client, &mnt->map, parms.Handle, SHFL_INFO_SET | SHFL_INFO_SIZE, &bytes, (SHFLDIRINFO *)&info); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_set_size: VbglR0SfFsInfo(%s, SIZE) failed rc=%d\n", path, rc); err = sfprov_vbox2errno(rc); goto fail1; } err = 0; fail1: rc = VbglR0SfClose(&vbox_client, &mnt->map, parms.Handle); if (RT_FAILURE(rc)) { cmn_err(CE_WARN, "sfprov_set_size: VbglR0SfClose(%s) failed rc=%d\n", path, rc); } fail2: kmem_free(str, str_size); return err; } /* * Directory operations */ int sfprov_mkdir( sfp_mount_t *mnt, char *path, mode_t mode, sfp_file_t **fp, sffs_stat_t *stat) { int rc; SHFLCREATEPARMS parms; SHFLSTRING *str; int size; sfp_file_t *newfp; str = sfprov_string(path, &size); parms.Handle = SHFL_HANDLE_NIL; parms.Info.cbObject = 0; sfprov_fmode_from_mode(&parms.Info.Attr.fMode, mode); parms.CreateFlags = SHFL_CF_DIRECTORY | SHFL_CF_ACT_CREATE_IF_NEW | SHFL_CF_ACT_FAIL_IF_EXISTS | SHFL_CF_ACCESS_READ; rc = VbglR0SfCreate(&vbox_client, &mnt->map, str, &parms); kmem_free(str, size); if (RT_FAILURE(rc)) return (sfprov_vbox2errno(rc)); if (parms.Handle == SHFL_HANDLE_NIL) { if (parms.Result == SHFL_FILE_EXISTS) return (EEXIST); return (ENOENT); } newfp = kmem_alloc(sizeof(sfp_file_t), KM_SLEEP); newfp->handle = parms.Handle; newfp->map = mnt->map; *fp = newfp; sfprov_stat_from_info(mnt, stat, &parms.Info); return (0); } int sfprov_set_show_symlinks(void) { int rc; rc = VbglR0SfSetSymlinks(&vbox_client); if (RT_FAILURE(rc)) return (sfprov_vbox2errno(rc)); return (0); } int sfprov_remove(sfp_mount_t *mnt, char *path, uint_t is_link) { int rc; SHFLSTRING *str; int size; str = sfprov_string(path, &size); rc = VbglR0SfRemove(&vbox_client, &mnt->map, str, SHFL_REMOVE_FILE | (is_link ? SHFL_REMOVE_SYMLINK : 0)); kmem_free(str, size); if (RT_FAILURE(rc)) return (sfprov_vbox2errno(rc)); return (0); } int sfprov_readlink( sfp_mount_t *mnt, char *path, char *target, size_t tgt_size) { int rc; SHFLSTRING *str; int size; str = sfprov_string(path, &size); rc = VbglR0SfReadLink(&vbox_client, &mnt->map, str, (uint32_t) tgt_size, target); if (RT_FAILURE(rc)) rc = sfprov_vbox2errno(rc); kmem_free(str, size); return (rc); } int sfprov_symlink( sfp_mount_t *mnt, char *linkname, char *target, sffs_stat_t *stat) { int rc; SHFLSTRING *lnk, *tgt; int lnk_size, tgt_size; SHFLFSOBJINFO info; lnk = sfprov_string(linkname, &lnk_size); tgt = sfprov_string(target, &tgt_size); rc = VbglR0SfSymlink(&vbox_client, &mnt->map, lnk, tgt, &info); if (RT_FAILURE(rc)) { rc = sfprov_vbox2errno(rc); goto done; } if (stat != NULL) sfprov_stat_from_info(mnt, stat, &info); done: kmem_free(lnk, lnk_size); kmem_free(tgt, tgt_size); return (rc); } int sfprov_rmdir(sfp_mount_t *mnt, char *path) { int rc; SHFLSTRING *str; int size; str = sfprov_string(path, &size); rc = VbglR0SfRemove(&vbox_client, &mnt->map, str, SHFL_REMOVE_DIR); kmem_free(str, size); if (RT_FAILURE(rc)) return (sfprov_vbox2errno(rc)); return (0); } int sfprov_rename(sfp_mount_t *mnt, char *from, char *to, uint_t is_dir) { int rc; SHFLSTRING *old, *new; int old_size, new_size; old = sfprov_string(from, &old_size); new = sfprov_string(to, &new_size); rc = VbglR0SfRename(&vbox_client, &mnt->map, old, new, (is_dir ? SHFL_RENAME_DIR : SHFL_RENAME_FILE) | SHFL_RENAME_REPLACE_IF_EXISTS); kmem_free(old, old_size); kmem_free(new, new_size); if (RT_FAILURE(rc)) return (sfprov_vbox2errno(rc)); return (0); } /* * Read all filenames in a directory. * * - success - all entries read and returned * - ENOENT - Couldn't open the directory for reading * - EINVAL - Internal error of some kind * * On successful return, *dirents points to a list of sffs_dirents_t; * for each dirent, all fields except the d_ino will be set appropriately. * The caller is responsible for freeing the dirents buffer. */ int sfprov_readdir( sfp_mount_t *mnt, char *path, sffs_dirents_t **dirents, int flag) { int error; char *cp; int len; SHFLSTRING *mask_str = NULL; /* must be path with "/ *" appended */ int mask_size; sfp_file_t *fp; uint32_t infobuff_alloc = 16384; SHFLDIRINFO *infobuff = NULL, *info; uint32_t numbytes; uint32_t nents; uint32_t size; off_t offset; sffs_dirents_t *cur_buf; struct sffs_dirent *dirent; unsigned short reclen; unsigned short entlen; *dirents = NULL; error = sfprov_diropen(mnt, path, &fp); if (error != 0) return (ENOENT); /* * Allocate the first dirents buffers. */ *dirents = kmem_alloc(SFFS_DIRENTS_SIZE, KM_SLEEP); if (*dirents == NULL) { error = (ENOSPC); goto done; } cur_buf = *dirents; cur_buf->sf_next = NULL; cur_buf->sf_len = 0; /* * Create mask that VBox expects. This needs to be the directory path, * plus a "*" wildcard to get all files. */ len = strlen(path) + 3; cp = kmem_alloc(len, KM_SLEEP); if (cp == NULL) { error = (ENOSPC); goto done; } strcpy(cp, path); strcat(cp, "/*"); mask_str = sfprov_string(cp, &mask_size); kmem_free(cp, len); /* * Now loop using VbglR0SfDirInfo */ infobuff = kmem_alloc(infobuff_alloc, KM_SLEEP); if (infobuff == NULL) { error = (ENOSPC); goto done; } offset = 0; for (;;) { numbytes = infobuff_alloc; error = VbglR0SfDirInfo(&vbox_client, &fp->map, fp->handle, mask_str, 0, 0, &numbytes, infobuff, &nents); switch (error) { case VINF_SUCCESS: /* fallthrough */ case VERR_NO_MORE_FILES: break; case VERR_NO_TRANSLATION: /* XXX ??? */ break; default: error = sfprov_vbox2errno(error); goto done; } /* * Create the dirent_t's and save the stats for each name */ for (info = infobuff; (char *) info < (char *) infobuff + numbytes; nents--) { /* expand buffers if we need more space */ reclen = DIRENT64_RECLEN(strlen(info->name.String.utf8)); entlen = sizeof(sffs_stat_t) + reclen; if (SFFS_DIRENTS_OFF + cur_buf->sf_len + entlen > SFFS_DIRENTS_SIZE) { cur_buf->sf_next = kmem_alloc(SFFS_DIRENTS_SIZE, KM_SLEEP); if (cur_buf->sf_next == NULL) { error = ENOSPC; goto done; } cur_buf = cur_buf->sf_next; cur_buf->sf_next = NULL; cur_buf->sf_len = 0; } /* create the dirent with the name, offset, and len */ dirent = (struct sffs_dirent *) (((char *) &cur_buf->sf_entries[0]) + cur_buf->sf_len); strncpy(&dirent->sf_entry.d_name[0], info->name.String.utf8, DIRENT64_NAMELEN(reclen)); dirent->sf_entry.d_reclen = reclen; offset += entlen; dirent->sf_entry.d_off = offset; /* save the stats */ sfprov_stat_from_info(mnt, &dirent->sf_stat, &info->Info); /* next info */ cur_buf->sf_len += entlen; size = offsetof (SHFLDIRINFO, name.String) + info->name.u16Size; info = (SHFLDIRINFO *) ((uintptr_t) info + size); } ASSERT(nents == 0); ASSERT((char *) info == (char *) infobuff + numbytes); if (error == VERR_NO_MORE_FILES) break; } error = 0; done: if (error != 0) { while (*dirents) { cur_buf = (*dirents)->sf_next; kmem_free(*dirents, SFFS_DIRENTS_SIZE); *dirents = cur_buf; } } if (infobuff != NULL) kmem_free(infobuff, infobuff_alloc); if (mask_str != NULL) kmem_free(mask_str, mask_size); sfprov_close(fp); return (error); }