diff options
Diffstat (limited to 'src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c')
| -rw-r--r-- | src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c | 1070 |
1 files changed, 1070 insertions, 0 deletions
diff --git a/src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c b/src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c new file mode 100644 index 00000000..94251d63 --- /dev/null +++ b/src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c @@ -0,0 +1,1070 @@ +/* $Id: vboxfs_prov.c $ */ +/** @file + * VirtualBox File System for Solaris Guests, provider implementation. + * Portions contributed by: Ronald. + */ + +/* + * Copyright (C) 2008-2023 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 <https://www.gnu.org/licenses>. + * + * 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 <sys/types.h> +#include <sys/stat.h> +#include <sys/mntent.h> +#include <sys/param.h> +#include <sys/modctl.h> +#include <sys/mount.h> +#include <sys/policy.h> +#include <sys/atomic.h> +#include <sys/sysmacros.h> +#include <sys/ddi.h> +#include <sys/sunddi.h> +#include <sys/dirent.h> +#include <sys/file.h> +#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 <iprt/err.h> + +#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); +} |