[PATCH 1/2] s3/modules: New vfs module: cephfs
Sam Lang
samlang at gmail.com
Tue Apr 16 16:25:30 MDT 2013
Implements a vfs module for cephfs, a distributed file system
with posix semantics, built on the ceph distributed object
storage layer. The ceph vfs module interfaces to the libcephfs
userspace API, and is primarily a lightweight wrapper around
libcephfs, translating error codes and parameters as necessary.
Signed-off-by: Sam Lang <sam.lang at inktank.com>
---
source3/Makefile.in | 5 +
source3/configure.in | 31 +
source3/modules/vfs_ceph.c | 1256 +++++++++++++++++++++++++++++++++++++++++
source3/modules/wscript_build | 10 +
source3/wscript | 15 +
5 files changed, 1317 insertions(+)
create mode 100644 source3/modules/vfs_ceph.c
diff --git a/source3/Makefile.in b/source3/Makefile.in
index 42332c6..bd2ddda 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -913,6 +913,7 @@ VFS_LINUX_XFS_SGID_OBJ = modules/vfs_linux_xfs_sgid.o
VFS_TIME_AUDIT_OBJ = modules/vfs_time_audit.o
VFS_MEDIA_HARMONY_OBJ = modules/vfs_media_harmony.o
VFS_BTRFS_OBJ = modules/vfs_btrfs.o
+VFS_CEPH_OBJ = modules/vfs_ceph.o
PAM_ERRORS_OBJ = ../libcli/auth/pam_errors.o
PLAINTEXT_AUTH_OBJ = auth/pampass.o auth/pass_check.o $(PAM_ERRORS_OBJ)
@@ -2964,6 +2965,10 @@ bin/btrfs. at SHLIBEXT@: $(BINARY_PREREQS) $(VFS_BTRFS_OBJ)
@echo "Building plugin $@"
@$(SHLD_MODULE) $(VFS_BTRFS_OBJ)
+bin/ceph. at SHLIBEXT@: $(BINARY_PREREQS) $(VFS_CEPH_OBJ)
+ @echo "Building plugin $@"
+ @$(SHLD_MODULE) $(VFS_CEPH_OBJ)
+
#########################################################
## IdMap NSS plugins
diff --git a/source3/configure.in b/source3/configure.in
index 88c71d4..d2aa215 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -1023,6 +1023,36 @@ if test x"$ac_cv_header_gpfs_gpl_h" = x"yes"; then
default_shared_modules="$default_shared_modules vfs_gpfs"
fi
+#############################
+# check if building with libcephfs
+# fail if --with-libcephfs specified but no headers found
+printf "%s" "checking for CephFS... "
+AC_CHECK_HEADERS(cephfs/libcephfs.h)
+
+save_LIBS="$LIBS"
+LIBS="$LIBS -lcephfs"
+AC_TRY_LINK([#include <cephfs/libcephfs.h>],
+ [ceph_version(0, 0, 0)],
+ samba_cv_HAVE_CEPHFS=yes,
+ samba_cv_HAVE_CEPHFS=no
+ )
+
+if test x"$ac_cv_header_cephfs_libcephfs_h" = x"yes" && test x"$samba_cv_HAVE_CEPHFS" = x"yes"; then
+ AC_DEFINE(HAVE_CEPH, 1, [Whether CEPH headers are available])
+ default_shared_modules="$default_shared_modules vfs_ceph"
+ save_CFLAGS="$CFLAGS"
+ save_LDFLAGS="$LDFLAGS"
+ save_LIBS="$save_LIBS -lcephfs"
+else
+ if test x"$CEPHFS_PATH_SPEC" = x"yes"; then
+ AC_MSG_ERROR([No valid libcephfs found in ${CEPHFS_PATH}])
+ fi
+fi
+
+CFLAGS="$save_CFLAGS"
+LDFLAGS="$save_LDFLAGS"
+LIBS="$save_LIBS"
+
# Note that all the libunwind symbols in the API are defined to internal
# platform-specific version, so we must include libunwind.h before checking
# any of them.
@@ -6455,6 +6485,7 @@ SMB_MODULE(vfs_linux_xfs_sgid, \$(VFS_LINUX_XFS_SGID_OBJ), "bin/linux_xfs_sgid.$
SMB_MODULE(vfs_time_audit, \$(VFS_TIME_AUDIT_OBJ), "bin/time_audit.$SHLIBEXT", VFS)
SMB_MODULE(vfs_media_harmony, \$(VFS_MEDIA_HARMONY_OBJ), "bin/media_harmony.$SHLIBEXT", VFS)
SMB_MODULE(vfs_btrfs, \$(VFS_BTRFS_OBJ), "bin/btrfs.$SHLIBEXT", VFS)
+SMB_MODULE(vfs_ceph, \$(VFS_CEPH_OBJ), "bin/ceph.$SHLIBEXT", VFS)
SMB_SUBSYSTEM(VFS,smbd/vfs.o)
diff --git a/source3/modules/vfs_ceph.c b/source3/modules/vfs_ceph.c
new file mode 100644
index 0000000..13bcf9d
--- /dev/null
+++ b/source3/modules/vfs_ceph.c
@@ -0,0 +1,1256 @@
+/*
+ Unix SMB/CIFS implementation.
+ Wrap disk only vfs functions to sidestep dodgy compilers.
+ Copyright (C) Tim Potter 1998
+ Copyright (C) Jeremy Allison 2007
+ Copyright (C) Brian Chrisman 2011 <bchrisman at gmail.com>
+ Copyright (C) Richard Sharpe 2011 <realrichardsharpe at gmail.com>
+
+ 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; either version 3 of the License, or
+ (at your option) any later version.
+
+ 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 <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * This VFS only works with the libceph.so user-space client. It is not needed
+ * if you are using the kernel client or the FUSE client.
+ *
+ * Add the following smb.conf parameter to each share that will be hosted on
+ * Ceph:
+ *
+ * vfs objects = ceph [any others you need go here]
+ */
+
+#include "includes.h"
+#include "smbd/smbd.h"
+#include <dirent.h>
+#include <sys/statvfs.h>
+#include "cephfs/libcephfs.h"
+#include "smbprofile.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_VFS
+
+/*
+ * Note, libceph's return code model is to return -errno! So we have to convert
+ * to what Samba expects, with is set errno to -return and return -1
+ */
+#define WRAP_RETURN(_res) \
+ errno = 0; \
+ if (_res < 0) { \
+ errno = -_res; \
+ return -1; \
+ } \
+ return _res \
+
+/*
+ * We mount only one file system and then all shares are assumed to be in that.
+ * FIXME: If we want to support more than one FS, then we have to deal with
+ * this differently.
+ *
+ * So, cmount tells us if we have been this way before and whether
+ * we need to mount ceph and cmount_cnt tells us how many times we have
+ * connected
+ */
+static struct ceph_mount_info * cmount = NULL;
+static uint32_t cmount_cnt = 0;
+
+/* Check for NULL pointer parameters in cephwrap_* functions */
+
+/* We don't want to have NULL function pointers lying around. Someone
+ is sure to try and execute them. These stubs are used to prevent
+ this possibility. */
+
+static int cephwrap_connect(struct vfs_handle_struct *handle, const char *service, const char *user)
+{
+ int ret;
+ char buf[256];
+
+ const char * conf_file;
+
+ if (cmount) {
+ handle->data = cmount; /* We have been here before */
+ cmount_cnt++;
+ return 0;
+ }
+
+ conf_file = lp_parm_const_string(SNUM(handle->conn), "ceph", "config_file", NULL);
+
+ DEBUG(2, ( "[CEPH] calling: ceph_create\n" ));
+ ret = ceph_create(&cmount, NULL);
+ if (ret)
+ goto err_out;
+
+ if (conf_file) {
+ /* Override the config file */
+ DEBUG(2, ( "[CEPH] calling: ceph_conf_read_file\n" ));
+ ret = ceph_conf_read_file(cmount, conf_file);
+ } else {
+
+ DEBUG(2, ( "[CEPH] calling: ceph_conf_read_file with %s\n", conf_file));
+ ret = ceph_conf_read_file(cmount, NULL);
+ }
+
+ if (ret)
+ goto err_out;
+
+ DEBUG(2, ( "[CEPH] calling: ceph_conf_get\n" ));
+ ret = ceph_conf_get(cmount, "log file", buf, sizeof(buf));
+ if (ret < 0)
+ goto err_out;
+
+ DEBUG(2, ("[CEPH] calling: ceph_mount\n"));
+ ret = ceph_mount(cmount, NULL);
+ if (ret < 0)
+ goto err_out;
+
+
+ /*
+ * encode mount context/state into our vfs/connection holding structure
+ * cmount is a ceph_mount_t*
+ */
+ handle->data = cmount;
+ cmount_cnt++;
+
+ return 0;
+
+err_out:
+ /*
+ * Handle the error correctly. Ceph returns -errno.
+ */
+ DEBUG(2, ("[CEPH] Error return: %s\n", strerror(-ret)));
+ WRAP_RETURN(ret);
+}
+
+static void cephwrap_disconnect(struct vfs_handle_struct *handle)
+{
+ if (!cmount) {
+ DEBUG(0, ("[CEPH] Error, ceph not mounted\n"));
+ return;
+ }
+
+ /* Should we unmount/shutdown? Only if the last disconnect? */
+ if (--cmount_cnt) {
+ DEBUG(10, ("[CEPH] Not shuting down CEPH because still more connections\n"));
+ return;
+ }
+
+ ceph_shutdown(cmount);
+
+ cmount = NULL; /* Make it safe */
+}
+
+/* Disk operations */
+
+static uint64_t cephwrap_disk_free(struct vfs_handle_struct *handle, const char *path, bool small_query, uint64_t *bsize,
+ uint64_t *dfree, uint64_t *dsize)
+{
+ struct statvfs statvfs_buf;
+ int ret;
+
+ if (!(ret = ceph_statfs(handle->data, path, &statvfs_buf))) {
+ /*
+ * Provide all the correct values.
+ */
+ *bsize = statvfs_buf.f_bsize;
+ *dfree = statvfs_buf.f_bsize * statvfs_buf.f_bavail;
+ *dsize = statvfs_buf.f_bsize * statvfs_buf.f_blocks;
+ DEBUG(10, ("[CEPH] bsize: %lu, dfree: %lu, dsize: %lu\n",
+ *bsize, *dfree, *dsize));
+ return *dfree;
+ } else {
+ DEBUG(10, ("[CEPH] ceph_statfs returned %d\n", ret));
+ WRAP_RETURN(ret);
+ }
+}
+
+static int cephwrap_get_quota(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
+{
+ /* libceph: Ceph does not implement this */
+#if 0
+/* was ifdef HAVE_SYS_QUOTAS */
+ int ret;
+
+ ret = ceph_get_quota(handle->conn->connectpath, qtype, id, qt);
+
+ if (ret) {
+ errno = -ret;
+ ret = -1;
+ }
+
+ return ret;
+#else
+ errno = ENOSYS;
+ return -1;
+#endif
+}
+
+static int cephwrap_set_quota(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
+{
+ /* libceph: Ceph does not implement this */
+#if 0
+/* was ifdef HAVE_SYS_QUOTAS */
+ int ret;
+
+ ret = ceph_set_quota(handle->conn->connectpath, qtype, id, qt);
+ if (ret) {
+ errno = -ret;
+ ret = -1;
+ }
+
+ return ret;
+#else
+ WRAP_RETURN(-ENOSYS);
+#endif
+}
+
+static int cephwrap_statvfs(struct vfs_handle_struct *handle, const char *path, vfs_statvfs_struct *statbuf)
+{
+ struct statvfs statvfs_buf;
+ int ret;
+
+ ret = ceph_statfs(handle->data, path, &statvfs_buf);
+ if (ret < 0) {
+ WRAP_RETURN(ret);
+ } else {
+ statbuf->OptimalTransferSize = statvfs_buf.f_frsize;
+ statbuf->BlockSize = statvfs_buf.f_bsize;
+ statbuf->TotalBlocks = statvfs_buf.f_blocks;
+ statbuf->BlocksAvail = statvfs_buf.f_bfree;
+ statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
+ statbuf->TotalFileNodes = statvfs_buf.f_files;
+ statbuf->FreeFileNodes = statvfs_buf.f_ffree;
+ statbuf->FsIdentifier = statvfs_buf.f_fsid;
+ DEBUG(10, ("[CEPH] f_bsize: %ld, f_blocks: %ld, f_bfree: %ld, f_bavail: %ld\n",
+ statvfs_buf.f_bsize, statvfs_buf.f_blocks,
+ statvfs_buf.f_bfree, statvfs_buf.f_bavail));
+ }
+ return ret;
+}
+
+/* Directory operations */
+
+static DIR *cephwrap_opendir(struct vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
+{
+ int ret = 0;
+ struct ceph_dir_result *result;
+ DEBUG(10, ("[CEPH] opendir(%p, %s)\n", handle, fname));
+
+ /* Returns NULL if it does not exist or there are problems ? */
+ ret = ceph_opendir(handle->data, fname, &result);
+ if (ret < 0) {
+ result = NULL;
+ errno = -ret; /* We return result which is NULL in this case */
+ }
+
+ DEBUG(10, ("[CEPH] opendir(...) = %d\n", ret));
+ return (DIR *) result;
+}
+
+static DIR *cephwrap_fdopendir(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ const char *mask,
+ uint32 attributes)
+{
+ int ret = 0;
+ struct ceph_dir_result *result;
+ DEBUG(10, ("[CEPH] fdopendir(%p, %p)\n", handle, fsp));
+
+ ret = ceph_opendir(handle->data, fsp->fsp_name->base_name, &result);
+ if (ret < 0) {
+ result = NULL;
+ errno = -ret; /* We return result which is NULL in this case */
+ }
+
+ DEBUG(10, ("[CEPH] fdopendir(...) = %d\n", ret));
+ return (DIR *) result;
+}
+
+static struct dirent *cephwrap_readdir(struct vfs_handle_struct *handle,
+ DIR *dirp,
+ SMB_STRUCT_STAT *sbuf)
+{
+ struct dirent *result;
+
+ DEBUG(10, ("[CEPH] readdir(%p, %p)\n", handle, dirp));
+ result = ceph_readdir(handle->data, (struct ceph_dir_result *) dirp);
+ DEBUG(10, ("[CEPH] readdir(...) = %p\n", result));
+
+ /* Default Posix readdir() does not give us stat info.
+ * Set to invalid to indicate we didn't return this info. */
+ if (sbuf)
+ SET_STAT_INVALID(*sbuf);
+ return result;
+}
+
+static void cephwrap_seekdir(struct vfs_handle_struct *handle, DIR *dirp, long offset)
+{
+ DEBUG(10, ("[CEPH] seekdir(%p, %p, %ld)\n", handle, dirp, offset));
+ ceph_seekdir(handle->data, (struct ceph_dir_result *) dirp, offset);
+}
+
+static long cephwrap_telldir(struct vfs_handle_struct *handle, DIR *dirp)
+{
+ long ret;
+ DEBUG(10, ("[CEPH] telldir(%p, %p)\n", handle, dirp));
+ ret = ceph_telldir(handle->data, (struct ceph_dir_result *) dirp);
+ DEBUG(10, ("[CEPH] telldir(...) = %ld\n", ret));
+ WRAP_RETURN(ret);
+}
+
+static void cephwrap_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
+{
+ DEBUG(10, ("[CEPH] rewinddir(%p, %p)\n", handle, dirp));
+ ceph_rewinddir(handle->data, (struct ceph_dir_result *) dirp);
+}
+
+static int cephwrap_mkdir(struct vfs_handle_struct *handle, const char *path, mode_t mode)
+{
+ int result;
+ bool has_dacl = False;
+ char *parent = NULL;
+
+ DEBUG(10, ("[CEPH] mkdir(%p, %s)\n", handle, path));
+
+ if (lp_inherit_acls(SNUM(handle->conn))
+ && parent_dirname(talloc_tos(), path, &parent, NULL)
+ && (has_dacl = directory_has_default_acl(handle->conn, parent)))
+ mode = 0777;
+
+ TALLOC_FREE(parent);
+
+ result = ceph_mkdir(handle->data, path, mode);
+
+ /*
+ * Note. This order is important
+ */
+ if (result) {
+ WRAP_RETURN(result);
+ } else if (result == 0 && !has_dacl) {
+ /*
+ * We need to do this as the default behavior of POSIX ACLs
+ * is to set the mask to be the requested group permission
+ * bits, not the group permission bits to be the requested
+ * group permission bits. This is not what we want, as it will
+ * mess up any inherited ACL bits that were set. JRA.
+ */
+ int saved_errno = errno; /* We may get ENOSYS */
+ if ((SMB_VFS_CHMOD_ACL(handle->conn, path, mode) == -1) && (errno == ENOSYS))
+ errno = saved_errno;
+ }
+
+ return result;
+}
+
+static int cephwrap_rmdir(struct vfs_handle_struct *handle, const char *path)
+{
+ int result;
+
+ DEBUG(10, ("[CEPH] rmdir(%p, %s)\n", handle, path));
+ result = ceph_rmdir(handle->data, path);
+ DEBUG(10, ("[CEPH] rmdir(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_closedir(struct vfs_handle_struct *handle, DIR *dirp)
+{
+ int result;
+
+ DEBUG(10, ("[CEPH] closedir(%p, %p)\n", handle, dirp));
+ result = ceph_closedir(handle->data, (struct ceph_dir_result *) dirp);
+ DEBUG(10, ("[CEPH] closedir(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+/* File operations */
+
+static int cephwrap_open(struct vfs_handle_struct *handle,
+ struct smb_filename *smb_fname,
+ files_struct *fsp, int flags, mode_t mode)
+{
+ int result = -ENOENT;
+ DEBUG(10, ("[CEPH] open(%p, %s, %p, %d, %d)\n", handle, smb_fname_str_dbg(smb_fname), fsp, flags, mode));
+
+ if (smb_fname->stream_name) {
+ goto out;
+ }
+
+ result = ceph_open(handle->data, smb_fname->base_name, flags, mode);
+out:
+ DEBUG(10, ("[CEPH] open(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_close(struct vfs_handle_struct *handle, files_struct *fsp)
+{
+ int result;
+
+ DEBUG(10, ("[CEPH] close(%p, %p)\n", handle, fsp));
+ result = ceph_close(handle->data, fsp->fh->fd);
+ DEBUG(10, ("[CEPH] close(...) = %d\n", result));
+
+ WRAP_RETURN(result);
+}
+
+static ssize_t cephwrap_read(struct vfs_handle_struct *handle, files_struct *fsp, void *data, size_t n)
+{
+ ssize_t result;
+
+ DEBUG(10, ("[CEPH] read(%p, %p, %p, %lu)\n", handle, fsp, data, n));
+
+ /* Using -1 for the offset means read/write rather than pread/pwrite */
+ result = ceph_read(handle->data, fsp->fh->fd, data, n, -1);
+ DEBUG(10, ("[CEPH] read(...) = %lu\n", result));
+ WRAP_RETURN(result);
+}
+
+static ssize_t cephwrap_pread(struct vfs_handle_struct *handle, files_struct *fsp, void *data,
+ size_t n, off_t offset)
+{
+ ssize_t result;
+
+ DEBUG(10, ("[CEPH] pread(%p, %p, %p, %lu, %lu)\n", handle, fsp, data, n, offset));
+
+ result = ceph_read(handle->data, fsp->fh->fd, data, n, offset);
+ DEBUG(10, ("[CEPH] pread(...) = %lu\n", result));
+ WRAP_RETURN(result);
+}
+
+
+static ssize_t cephwrap_write(struct vfs_handle_struct *handle, files_struct *fsp, const void *data, size_t n)
+{
+ ssize_t result;
+
+ DEBUG(10, ("[CEPH] write(%p, %p, %p, %lu)\n", handle, fsp, data, n));
+
+ result = ceph_write(handle->data, fsp->fh->fd, data, n, -1);
+
+ DEBUG(10, ("[CEPH] write(...) = %lu\n", result));
+ if (result < 0) {
+ WRAP_RETURN(result);
+ }
+ fsp->fh->pos += result;
+ return result;
+}
+
+static ssize_t cephwrap_pwrite(struct vfs_handle_struct *handle, files_struct *fsp, const void *data,
+ size_t n, off_t offset)
+{
+ ssize_t result;
+
+ DEBUG(10, ("[CEPH] pwrite(%p, %p, %p, %lu, %lu)\n", handle, fsp, data, n, offset));
+ result = ceph_write(handle->data, fsp->fh->fd, data, n, offset);
+ DEBUG(10, ("[CEPH] pwrite(...) = %lu\n", result));
+ WRAP_RETURN(result);
+}
+
+static off_t cephwrap_lseek(struct vfs_handle_struct *handle, files_struct *fsp, off_t offset, int whence)
+{
+ off_t result = 0;
+
+ DEBUG(10, ("[CEPH] cephwrap_lseek\n"));
+ /* Cope with 'stat' file opens. */
+ if (fsp->fh->fd != -1) {
+ result = ceph_lseek(handle->data, fsp->fh->fd, offset, whence);
+ }
+ WRAP_RETURN(result);
+}
+
+static ssize_t cephwrap_sendfile(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *hdr,
+ off_t offset, size_t n)
+{
+ /*
+ * We cannot support sendfile because libceph is in user space.
+ */
+ DEBUG(10, ("[CEPH] cephwrap_sendfile\n"));
+ errno = ENOTSUP;
+ return -1;
+}
+
+static ssize_t cephwrap_recvfile(struct vfs_handle_struct *handle,
+ int fromfd,
+ files_struct *tofsp,
+ off_t offset,
+ size_t n)
+{
+ /*
+ * We cannot support recvfile because libceph is in user space.
+ */
+ DEBUG(10, ("[CEPH] cephwrap_recvfile\n"));
+ errno=ENOTSUP;
+ return -1;
+}
+
+static int cephwrap_rename(struct vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname_src,
+ const struct smb_filename *smb_fname_dst)
+{
+ int result = -1;
+ DEBUG(10, ("[CEPH] cephwrap_rename\n"));
+ if (smb_fname_src->stream_name || smb_fname_dst->stream_name) {
+ errno = ENOENT;
+ return result;
+ }
+
+ result = ceph_rename(handle->data, smb_fname_src->base_name, smb_fname_dst->base_name);
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_fsync(struct vfs_handle_struct *handle, files_struct *fsp)
+{
+ int result;
+ DEBUG(10, ("[CEPH] cephwrap_fsync\n"));
+ result = ceph_fsync(handle->data, fsp->fh->fd, false);
+ WRAP_RETURN(result);
+}
+
+static void cephwrap_init_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
+{
+ ZERO_STRUCT(*dst);
+
+ dst->st_ex_dev = src->st_dev;
+ dst->st_ex_ino = src->st_ino;
+ dst->st_ex_mode = src->st_mode;
+ dst->st_ex_nlink = src->st_nlink;
+ dst->st_ex_uid = src->st_uid;
+ dst->st_ex_gid = src->st_gid;
+ dst->st_ex_rdev = src->st_rdev;
+ dst->st_ex_size = src->st_size;
+ dst->st_ex_atime.tv_sec = src->st_atime;
+ dst->st_ex_mtime.tv_sec = src->st_mtime;
+ dst->st_ex_ctime.tv_sec = src->st_ctime;
+ dst->st_ex_btime.tv_sec = src->st_mtime;
+ dst->st_ex_blksize = src->st_blksize;
+ dst->st_ex_blocks = src->st_blocks;
+}
+
+static int cephwrap_stat(struct vfs_handle_struct *handle,
+ struct smb_filename *smb_fname)
+{
+ int result = -1;
+ struct stat stbuf;
+
+ DEBUG(10, ("[CEPH] stat(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname)));
+
+ if (smb_fname->stream_name) {
+ errno = ENOENT;
+ return result;
+ }
+
+ result = ceph_stat(handle->data, smb_fname->base_name, (struct stat *) &stbuf);
+ DEBUG(10, ("[CEPH] stat(...) = %d\n", result));
+ if (result < 0) {
+ WRAP_RETURN(result);
+ } else {
+ DEBUG(10, ("[CEPH]\tstbuf = {dev = %lu, ino = %lu, mode = 0x%x, nlink = %lu, "
+ "uid = %d, gid = %d, rdev = %lu, size = %lu, blksize = %lu, "
+ "blocks = %lu, atime = %lu, mtime = %lu, ctime = %lu}\n",
+ stbuf.st_dev, stbuf.st_ino, stbuf.st_mode, stbuf.st_nlink,
+ stbuf.st_uid, stbuf.st_gid, stbuf.st_rdev, stbuf.st_size, stbuf.st_blksize,
+ stbuf.st_blocks, stbuf.st_atime, stbuf.st_mtime, stbuf.st_ctime));
+ }
+ cephwrap_init_stat_ex_from_stat(&(smb_fname->st), &stbuf);
+ DEBUG(10, ("[CEPH] mode = 0x%x\n", smb_fname->st.st_ex_mode));
+ return result;
+}
+
+static int cephwrap_fstat(struct vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf)
+{
+ int result = -1;
+ struct stat stbuf;
+
+ DEBUG(10, ("[CEPH] fstat(%p, %d)\n", handle, fsp->fh->fd));
+ result = ceph_fstat(handle->data, fsp->fh->fd, (struct stat *) &stbuf);
+ DEBUG(10, ("[CEPH] fstat(...) = %d\n", result));
+ if (result < 0) {
+ WRAP_RETURN(result);
+ } else {
+ DEBUG(10, ("[CEPH]\tstbuf = {dev = %lu, ino = %lu, mode = 0x%x, nlink = %lu, "
+ "uid = %d, gid = %d, rdev = %lu, size = %lu, blksize = %lu, "
+ "blocks = %lu, atime = %lu, mtime = %lu, ctime = %lu}\n",
+ stbuf.st_dev, stbuf.st_ino, stbuf.st_mode, stbuf.st_nlink,
+ stbuf.st_uid, stbuf.st_gid, stbuf.st_rdev, stbuf.st_size, stbuf.st_blksize,
+ stbuf.st_blocks, stbuf.st_atime, stbuf.st_mtime, stbuf.st_ctime));
+ }
+
+ cephwrap_init_stat_ex_from_stat(sbuf, &stbuf);
+ DEBUG(10, ("[CEPH] mode = 0x%x\n", sbuf->st_ex_mode));
+ return result;
+}
+
+static int cephwrap_lstat(struct vfs_handle_struct *handle,
+ struct smb_filename *smb_fname)
+{
+ int result = -1;
+ struct stat stbuf;
+
+ DEBUG(10, ("[CEPH] lstat(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname)));
+
+ if (smb_fname->stream_name) {
+ errno = ENOENT;
+ return result;
+ }
+
+ result = ceph_lstat(handle->data, smb_fname->base_name, &stbuf);
+ DEBUG(10, ("[CEPH] lstat(...) = %d\n", result));
+ if (result < 0) {
+ WRAP_RETURN(result);
+ }
+ cephwrap_init_stat_ex_from_stat(&(smb_fname->st), &stbuf);
+ return result;
+}
+
+static int cephwrap_unlink(struct vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
+{
+ int result = -1;
+
+ DEBUG(10, ("[CEPH] unlink(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname)));
+ if (smb_fname->stream_name) {
+ errno = ENOENT;
+ return result;
+ }
+ result = ceph_unlink(handle->data, smb_fname->base_name);
+ DEBUG(10, ("[CEPH] unlink(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_chmod(struct vfs_handle_struct *handle, const char *path, mode_t mode)
+{
+ int result;
+
+ DEBUG(10, ("[CEPH] chmod(%p, %s, %d)\n", handle, path, mode));
+
+ /*
+ * We need to do this due to the fact that the default POSIX ACL
+ * chmod modifies the ACL *mask* for the group owner, not the
+ * group owner bits directly. JRA.
+ */
+
+
+ {
+ int saved_errno = errno; /* We might get ENOSYS */
+ if ((result = SMB_VFS_CHMOD_ACL(handle->conn, path, mode)) == 0) {
+ return result;
+ }
+ /* Error - return the old errno. */
+ errno = saved_errno;
+ }
+
+ result = ceph_chmod(handle->data, path, mode);
+ DEBUG(10, ("[CEPH] chmod(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_fchmod(struct vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
+{
+ int result;
+
+ DEBUG(10, ("[CEPH] fchmod(%p, %p, %d)\n", handle, fsp, mode));
+
+ /*
+ * We need to do this due to the fact that the default POSIX ACL
+ * chmod modifies the ACL *mask* for the group owner, not the
+ * group owner bits directly. JRA.
+ */
+
+ {
+ int saved_errno = errno; /* We might get ENOSYS */
+ if ((result = SMB_VFS_FCHMOD_ACL(fsp, mode)) == 0) {
+ return result;
+ }
+ /* Error - return the old errno. */
+ errno = saved_errno;
+ }
+
+#if defined(HAVE_FCHMOD)
+ result = ceph_fchmod(handle->data, fsp->fh->fd, mode);
+ DEBUG(10, ("[CEPH] fchmod(...) = %d\n", result));
+ WRAP_RETURN(result);
+#else
+ errno = ENOSYS;
+#endif
+ return -1;
+}
+
+static int cephwrap_chown(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
+{
+ int result;
+ DEBUG(10, ("[CEPH] chown(%p, %s, %d, %d)\n", handle, path, uid, gid));
+ result = ceph_chown(handle->data, path, uid, gid);
+ DEBUG(10, ("[CEPH] chown(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_fchown(struct vfs_handle_struct *handle, files_struct *fsp, uid_t uid, gid_t gid)
+{
+ int result;
+#ifdef HAVE_FCHOWN
+
+ DEBUG(10, ("[CEPH] fchown(%p, %p, %d, %d)\n", handle, fsp, uid, gid));
+ result = ceph_fchown(handle->data, fsp->fh->fd, uid, gid);
+ DEBUG(10, ("[CEPH] fchown(...) = %d\n", result));
+ WRAP_RETURN(result);
+#else
+ errno = ENOSYS;
+ result = -1;
+#endif
+ return result;
+}
+
+static int cephwrap_lchown(struct vfs_handle_struct *handle, const char *path, uid_t uid, gid_t gid)
+{
+ int result;
+
+ DEBUG(10, ("[CEPH] lchown(%p, %s, %d, %d)\n", handle, path, uid, gid));
+ result = ceph_lchown(handle->data, path, uid, gid);
+ DEBUG(10, ("[CEPH] lchown(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_chdir(struct vfs_handle_struct *handle, const char *path)
+{
+ int result = -1;
+ DEBUG(10, ("[CEPH] chdir(%p, %s)\n", handle, path));
+ /*
+ * If the path is just / use chdir because Ceph is below / and
+ * cannot deal with changing directory above its mount point
+ */
+ if (path && !strcmp(path, "/"))
+ return chdir(path);
+
+ result = ceph_chdir(handle->data, path);
+ DEBUG(10, ("[CEPH] chdir(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static char *cephwrap_getwd(struct vfs_handle_struct *handle)
+{
+ const char *cwd = ceph_getcwd(handle->data);
+ DEBUG(10, ("[CEPH] getwd(%p) = %s\n", handle, cwd));
+ return strdup(cwd);
+}
+
+static int cephwrap_ntimes(struct vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname,
+ struct smb_file_time *ft)
+{
+ struct utimbuf buf;
+ buf.actime = ft->atime.tv_sec;
+ buf.modtime = ft->mtime.tv_sec;
+ int result = ceph_utime(handle->data, smb_fname->base_name, &buf);
+ DEBUG(10, ("[CEPH] ntimes(%p, %s, {%ld, %ld, %ld, %ld}) = %d\n", handle, smb_fname_str_dbg(smb_fname),
+ ft->mtime.tv_sec, ft->atime.tv_sec, ft->ctime.tv_sec,
+ ft->create_time.tv_sec, result));
+ return result;
+}
+
+static int strict_allocate_ftruncate(struct vfs_handle_struct *handle, files_struct *fsp, off_t len)
+{
+ off_t space_to_write;
+ uint64_t space_avail;
+ uint64_t bsize,dfree,dsize;
+ int ret;
+ NTSTATUS status;
+ SMB_STRUCT_STAT *pst;
+
+ status = vfs_stat_fsp(fsp);
+ if (!NT_STATUS_IS_OK(status)) {
+ return -1;
+ }
+ pst = &fsp->fsp_name->st;
+
+#ifdef S_ISFIFO
+ if (S_ISFIFO(pst->st_ex_mode))
+ return 0;
+#endif
+
+ if (pst->st_ex_size == len)
+ return 0;
+
+ /* Shrink - just ftruncate. */
+ if (pst->st_ex_size > len)
+ return ftruncate(fsp->fh->fd, len);
+
+ space_to_write = len - pst->st_ex_size;
+
+ /* for allocation try fallocate first. This can fail on some
+ platforms e.g. when the filesystem doesn't support it and no
+ emulation is being done by the libc (like on AIX with JFS1). In that
+ case we do our own emulation. fallocate implementations can
+ return ENOTSUP or EINVAL in cases like that. */
+ ret = SMB_VFS_FALLOCATE(fsp, VFS_FALLOCATE_EXTEND_SIZE,
+ pst->st_ex_size, space_to_write);
+ if (ret == ENOSPC) {
+ errno = ENOSPC;
+ return -1;
+ }
+ if (ret == 0) {
+ return 0;
+ }
+ DEBUG(10,("[CEPH] strict_allocate_ftruncate: SMB_VFS_FALLOCATE failed with "
+ "error %d. Falling back to slow manual allocation\n", ret));
+
+ /* available disk space is enough or not? */
+ space_avail = get_dfree_info(fsp->conn,
+ fsp->fsp_name->base_name, false,
+ &bsize,&dfree,&dsize);
+ /* space_avail is 1k blocks */
+ if (space_avail == (uint64_t)-1 ||
+ ((uint64_t)space_to_write/1024 > space_avail) ) {
+ errno = ENOSPC;
+ return -1;
+ }
+
+ /* Write out the real space on disk. */
+ ret = vfs_slow_fallocate(fsp, pst->st_ex_size, space_to_write);
+ if (ret != 0) {
+ errno = ret;
+ ret = -1;
+ }
+
+ return 0;
+}
+
+static int cephwrap_ftruncate(struct vfs_handle_struct *handle, files_struct *fsp, off_t len)
+{
+ int result = -1;
+ SMB_STRUCT_STAT st;
+ char c = 0;
+ off_t currpos;
+
+ DEBUG(10, ("[CEPH] ftruncate(%p, %p, %lu\n", handle, fsp, len));
+
+ if (lp_strict_allocate(SNUM(fsp->conn))) {
+ result = strict_allocate_ftruncate(handle, fsp, len);
+ return result;
+ }
+
+ /* we used to just check HAVE_FTRUNCATE_EXTEND and only use
+ sys_ftruncate if the system supports it. Then I discovered that
+ you can have some filesystems that support ftruncate
+ expansion and some that don't! On Linux fat can't do
+ ftruncate extend but ext2 can. */
+
+ result = ceph_ftruncate(handle->data, fsp->fh->fd, len);
+ if (result == 0)
+ goto done;
+
+ /* According to W. R. Stevens advanced UNIX prog. Pure 4.3 BSD cannot
+ extend a file with ftruncate. Provide alternate implementation
+ for this */
+ currpos = SMB_VFS_LSEEK(fsp, 0, SEEK_CUR);
+ if (currpos == -1) {
+ goto done;
+ }
+
+ /* Do an fstat to see if the file is longer than the requested
+ size in which case the ftruncate above should have
+ succeeded or shorter, in which case seek to len - 1 and
+ write 1 byte of zero */
+ if (SMB_VFS_FSTAT(fsp, &st) == -1) {
+ goto done;
+ }
+
+#ifdef S_ISFIFO
+ if (S_ISFIFO(st.st_ex_mode)) {
+ result = 0;
+ goto done;
+ }
+#endif
+
+ if (st.st_ex_size == len) {
+ result = 0;
+ goto done;
+ }
+
+ if (st.st_ex_size > len) {
+ /* the sys_ftruncate should have worked */
+ goto done;
+ }
+
+ if (SMB_VFS_LSEEK(fsp, len-1, SEEK_SET) != len -1)
+ goto done;
+
+ if (SMB_VFS_WRITE(fsp, &c, 1)!=1)
+ goto done;
+
+ /* Seek to where we were */
+ if (SMB_VFS_LSEEK(fsp, currpos, SEEK_SET) != currpos)
+ goto done;
+ result = 0;
+
+ done:
+
+ return result;
+}
+
+static bool cephwrap_lock(struct vfs_handle_struct *handle, files_struct *fsp, int op, off_t offset, off_t count, int type)
+{
+ DEBUG(10, ("[CEPH] lock\n"));
+ return true;
+}
+
+static int cephwrap_kernel_flock(struct vfs_handle_struct *handle, files_struct *fsp,
+ uint32 share_mode, uint32 access_mask)
+{
+ DEBUG(10, ("[CEPH] kernel_flock\n"));
+ /*
+ * We must return zero here and pretend all is good.
+ * One day we might have this in CEPH.
+ */
+ return 0;
+}
+
+static bool cephwrap_getlock(struct vfs_handle_struct *handle, files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
+{
+ DEBUG(10, ("[CEPH] getlock returning false and errno=0\n"));
+
+ errno = 0;
+ return false;
+}
+
+/*
+ * We cannot let this fall through to the default, because the file might only
+ * be accessible from libceph (which is a user-space client) but the fd might
+ * be for some file the kernel knows about.
+ */
+static int cephwrap_linux_setlease(struct vfs_handle_struct *handle, files_struct *fsp,
+ int leasetype)
+{
+ int result = -1;
+
+ DEBUG(10, ("[CEPH] linux_setlease\n"));
+ errno = ENOSYS;
+ return result;
+}
+
+static int cephwrap_symlink(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath)
+{
+ int result = -1;
+ DEBUG(10, ("[CEPH] symlink(%p, %s, %s)\n", handle, oldpath, newpath));
+ result = ceph_symlink(handle->data, oldpath, newpath);
+ DEBUG(10, ("[CEPH] symlink(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_readlink(struct vfs_handle_struct *handle, const char *path, char *buf, size_t bufsiz)
+{
+ int result = -1;
+ DEBUG(10, ("[CEPH] readlink(%p, %s, %p, %lu)\n", handle, path, buf, bufsiz));
+ result = ceph_readlink(handle->data, path, buf, bufsiz);
+ DEBUG(10, ("[CEPH] readlink(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_link(struct vfs_handle_struct *handle, const char *oldpath, const char *newpath)
+{
+ int result = -1;
+ DEBUG(10, ("[CEPH] link(%p, %s, %s)\n", handle, oldpath, newpath));
+ result = ceph_link(handle->data, oldpath, newpath);
+ DEBUG(10, ("[CEPH] link(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+static int cephwrap_mknod(struct vfs_handle_struct *handle, const char *pathname, mode_t mode, SMB_DEV_T dev)
+{
+ int result = -1;
+ DEBUG(10, ("[CEPH] mknod(%p, %s)\n", handle, pathname));
+ result = ceph_mknod(handle->data, pathname, mode, dev);
+ DEBUG(10, ("[CEPH] mknod(...) = %d\n", result));
+ WRAP_RETURN(result);
+}
+
+/*
+ * This is a simple version of real-path ... a better version is needed to
+ * ask libceph about symbolic links.
+ */
+static char *cephwrap_realpath(struct vfs_handle_struct *handle, const char *path)
+{
+ char *result;
+ size_t len = strlen(path);
+
+ result = SMB_MALLOC_ARRAY(char, PATH_MAX+1);
+ if (len && (path[0] == '/')) {
+ int r = asprintf(&result, "%s", path);
+ if (r < 0) return NULL;
+ } else if ((len >= 2) && (path[0] == '.') && (path[1] == '/')) {
+ if (len == 2) {
+ int r = asprintf(&result, "%s",
+ handle->conn->connectpath);
+ if (r < 0) return NULL;
+ } else {
+ int r = asprintf(&result, "%s/%s",
+ handle->conn->connectpath, &path[2]);
+ if (r < 0) return NULL;
+ }
+ } else {
+ int r = asprintf(&result, "%s/%s",
+ handle->conn->connectpath, path);
+ if (r < 0) return NULL;
+ }
+ DEBUG(10, ("[CEPH] realpath(%p, %s) = %s\n", handle, path, result));
+ return result;
+}
+
+static NTSTATUS cephwrap_notify_watch(struct vfs_handle_struct *vfs_handle,
+ struct sys_notify_context *ctx,
+ const char *path,
+ uint32_t *filter,
+ uint32_t *subdir_filter,
+ void (*callback)(struct sys_notify_context *ctx,
+ void *private_data,
+ struct notify_event *ev),
+ void *private_data,
+ void *handle_p)
+{
+ /*
+ * We cannot call inotify on files the kernel does not know about
+ */
+ return NT_STATUS_OK;
+}
+
+static int cephwrap_chflags(struct vfs_handle_struct *handle, const char *path,
+ unsigned int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+static int cephwrap_get_real_filename(struct vfs_handle_struct *handle,
+ const char *path,
+ const char *name,
+ TALLOC_CTX *mem_ctx,
+ char **found_name)
+{
+ /*
+ * Don't fall back to get_real_filename so callers can differentiate
+ * between a full directory scan and an actual case-insensitive stat.
+ */
+ errno = EOPNOTSUPP;
+ return -1;
+}
+
+static const char *cephwrap_connectpath(struct vfs_handle_struct *handle,
+ const char *fname)
+{
+ return handle->conn->connectpath;
+}
+
+/****************************************************************
+ Extended attribute operations.
+*****************************************************************/
+
+static ssize_t cephwrap_getxattr(struct vfs_handle_struct *handle,const char *path, const char *name, void *value, size_t size)
+{
+ DEBUG(10, ("[CEPH] getxattr(%p, %s, %s, %p, %lu)\n", handle, path, name, value, size));
+ int ret = ceph_getxattr(handle->data, path, name, value, size);
+ DEBUG(10, ("[CEPH] getxattr(...) = %d\n", ret));
+ if (ret < 0) {
+ WRAP_RETURN(ret);
+ } else {
+ return (ssize_t)ret;
+ }
+}
+
+static ssize_t cephwrap_fgetxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size)
+{
+ DEBUG(10, ("[CEPH] fgetxattr(%p, %p, %s, %p, %lu)\n", handle, fsp, name, value, size));
+ int ret = ceph_getxattr(handle->data, fsp->fsp_name->base_name, name, value, size);
+ DEBUG(10, ("[CEPH] fgetxattr(...) = %d\n", ret));
+ if (ret < 0) {
+ WRAP_RETURN(ret);
+ } else {
+ return (ssize_t)ret;
+ }
+}
+
+static ssize_t cephwrap_listxattr(struct vfs_handle_struct *handle, const char *path, char *list, size_t size)
+{
+ DEBUG(10, ("[CEPH] listxattr(%p, %s, %p, %lu)\n", handle, path, list, size));
+ int ret = ceph_listxattr(handle->data, path, list, size);
+ DEBUG(10, ("[CEPH] listxattr(...) = %d\n", ret));
+ if (ret < 0) {
+ WRAP_RETURN(ret);
+ } else {
+ return (ssize_t)ret;
+ }
+}
+
+static ssize_t cephwrap_llistxattr(struct vfs_handle_struct *handle, const char *path, char *list, size_t size)
+{
+ DEBUG(10, ("[CEPH] llistxattr(%p, %s, %p, %lu)\n", handle, path, list, size));
+ int ret = ceph_llistxattr(handle->data, path, list, size);
+ DEBUG(10, ("[CEPH] listxattr(...) = %d\n", ret));
+ if (ret < 0) {
+ WRAP_RETURN(ret);
+ } else {
+ return (ssize_t)ret;
+ }
+}
+
+static ssize_t cephwrap_flistxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size)
+{
+ DEBUG(10, ("[CEPH] flistxattr(%p, %p, %s, %lu)\n", handle, fsp, list, size));
+ int ret = ceph_listxattr(handle->data, fsp->fsp_name->base_name, list, size);
+ DEBUG(10, ("[CEPH] flistxattr(...)\n", ret));
+ if (ret < 0) {
+ WRAP_RETURN(ret);
+ } else {
+ return (ssize_t)ret;
+ }
+}
+
+static int cephwrap_removexattr(struct vfs_handle_struct *handle, const char *path, const char *name)
+{
+ DEBUG(10, ("[CEPH] removexattr(%p, %s, %s)\n", handle, path, name));
+ int ret = ceph_removexattr(handle->data, path, name);
+ DEBUG(10, ("[CEPH] removexattr(...) = %d\n", ret));
+ WRAP_RETURN(ret);
+}
+
+static int cephwrap_fremovexattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name)
+{
+ DEBUG(10, ("[CEPH] fremovexattr(%p, %p, %s)\n", handle, fsp, name));
+ int ret = ceph_removexattr(handle->data, fsp->fsp_name->base_name, name);
+ DEBUG(10, ("[CEPH] fremovexattr(...) = %d\n", ret));
+ WRAP_RETURN(ret);
+}
+
+static int cephwrap_setxattr(struct vfs_handle_struct *handle, const char *path, const char *name, const void *value, size_t size, int flags)
+{
+ DEBUG(10, ("[CEPH] setxattr(%p, %s, %s, %p, %lu, %d)\n", handle, path, name, value, size, flags));
+ int ret = ceph_setxattr(handle->data, path, name, value, size, flags);
+ DEBUG(10, ("[CEPH] setxattr(...) = %d\n", ret));
+ WRAP_RETURN(ret);
+}
+
+static int cephwrap_fsetxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags)
+{
+ DEBUG(10, ("[CEPH] fsetxattr(%p, %p, %s, %p, %lu, %d)\n", handle, fsp, name, value, size, flags));
+ int ret = ceph_setxattr(handle->data, fsp->fsp_name->base_name, name, value, size, flags);
+ DEBUG(10, ("[CEPH] fsetxattr(...) = %d\n", ret));
+ WRAP_RETURN(ret);
+}
+
+static bool cephwrap_aio_force(struct vfs_handle_struct *handle, struct files_struct *fsp)
+{
+
+ /*
+ * We do not support AIO yet.
+ */
+
+ DEBUG(10, ("[CEPH] cephwrap_aio_force(%p, %p) = false (errno = ENOTSUP)\n", handle, fsp));
+ errno = ENOTSUP;
+ return false;
+}
+
+static bool cephwrap_is_offline(struct vfs_handle_struct *handle,
+ const struct smb_filename *fname,
+ SMB_STRUCT_STAT *sbuf)
+{
+ return false;
+}
+
+static int cephwrap_set_offline(struct vfs_handle_struct *handle,
+ const struct smb_filename *fname)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static struct vfs_fn_pointers ceph_fns = {
+ /* Disk operations */
+
+ .connect_fn = cephwrap_connect,
+ .disconnect_fn = cephwrap_disconnect,
+ .disk_free_fn = cephwrap_disk_free,
+ .get_quota_fn = cephwrap_get_quota,
+ .set_quota_fn = cephwrap_set_quota,
+ .statvfs_fn = cephwrap_statvfs,
+
+ /* Directory operations */
+
+ .opendir_fn = cephwrap_opendir,
+ .fdopendir_fn = cephwrap_fdopendir,
+ .readdir_fn = cephwrap_readdir,
+ .seekdir_fn = cephwrap_seekdir,
+ .telldir_fn = cephwrap_telldir,
+ .rewind_dir_fn = cephwrap_rewinddir,
+ .mkdir_fn = cephwrap_mkdir,
+ .rmdir_fn = cephwrap_rmdir,
+ .closedir_fn = cephwrap_closedir,
+
+ /* File operations */
+
+ .open_fn = cephwrap_open,
+ .close_fn = cephwrap_close,
+ .read_fn = cephwrap_read,
+ .pread_fn = cephwrap_pread,
+ .write_fn = cephwrap_write,
+ .pwrite_fn = cephwrap_pwrite,
+ .lseek_fn = cephwrap_lseek,
+ .sendfile_fn = cephwrap_sendfile,
+ .recvfile_fn = cephwrap_recvfile,
+ .rename_fn = cephwrap_rename,
+ .fsync_fn = cephwrap_fsync,
+ .stat_fn = cephwrap_stat,
+ .fstat_fn = cephwrap_fstat,
+ .lstat_fn = cephwrap_lstat,
+ .unlink_fn = cephwrap_unlink,
+ .chmod_fn = cephwrap_chmod,
+ .fchmod_fn = cephwrap_fchmod,
+ .chown_fn = cephwrap_chown,
+ .fchown_fn = cephwrap_fchown,
+ .lchown_fn = cephwrap_lchown,
+ .chdir_fn = cephwrap_chdir,
+ .getwd_fn = cephwrap_getwd,
+ .ntimes_fn = cephwrap_ntimes,
+ .ftruncate_fn = cephwrap_ftruncate,
+ .lock_fn = cephwrap_lock,
+ .kernel_flock_fn = cephwrap_kernel_flock,
+ .linux_setlease_fn = cephwrap_linux_setlease,
+ .getlock_fn = cephwrap_getlock,
+ .symlink_fn = cephwrap_symlink,
+ .readlink_fn = cephwrap_readlink,
+ .link_fn = cephwrap_link,
+ .mknod_fn = cephwrap_mknod,
+ .realpath_fn = cephwrap_realpath,
+ .notify_watch_fn = cephwrap_notify_watch,
+ .chflags_fn = cephwrap_chflags,
+ .get_real_filename_fn = cephwrap_get_real_filename,
+ .connectpath_fn = cephwrap_connectpath,
+
+ /* EA operations. */
+ .getxattr_fn = cephwrap_getxattr,
+ .fgetxattr_fn = cephwrap_fgetxattr,
+ .listxattr_fn = cephwrap_listxattr,
+ .flistxattr_fn = cephwrap_flistxattr,
+ .removexattr_fn = cephwrap_removexattr,
+ .fremovexattr_fn = cephwrap_fremovexattr,
+ .setxattr_fn = cephwrap_setxattr,
+ .fsetxattr_fn = cephwrap_fsetxattr,
+
+ /* aio operations */
+ .aio_force_fn = cephwrap_aio_force,
+
+ /* offline operations */
+ .is_offline_fn = cephwrap_is_offline,
+ .set_offline_fn = cephwrap_set_offline
+};
+
+NTSTATUS vfs_ceph_init(void);
+NTSTATUS vfs_ceph_init(void)
+{
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
+ "ceph", &ceph_fns);
+}
diff --git a/source3/modules/wscript_build b/source3/modules/wscript_build
index 6726ac3..df4f59a 100644
--- a/source3/modules/wscript_build
+++ b/source3/modules/wscript_build
@@ -50,6 +50,7 @@ VFS_LINUX_XFS_SGID_SRC = 'vfs_linux_xfs_sgid.c'
VFS_TIME_AUDIT_SRC = 'vfs_time_audit.c'
VFS_MEDIA_HARMONY_SRC = 'vfs_media_harmony.c'
VFS_BTRFS_SRC = 'vfs_btrfs.c'
+VFS_CEPH_SRC = 'vfs_ceph.c'
bld.SAMBA3_SUBSYSTEM('NFS4_ACLS',
@@ -503,3 +504,12 @@ bld.SAMBA3_MODULE('perfcount_test',
init_function='',
internal_module=bld.SAMBA3_IS_STATIC_MODULE('perfcount_test'),
enabled=bld.SAMBA3_IS_ENABLED_MODULE('perfcount_test'))
+
+bld.SAMBA3_MODULE('vfs_ceph',
+ subsystem='vfs',
+ source=VFS_CEPH_SRC,
+ deps='samba-util cephfs',
+ init_function='',
+ internal_module=bld.SAMBA3_IS_STATIC_MODULE('vfs_ceph'),
+ enabled=bld.SAMBA3_IS_ENABLED_MODULE('vfs_ceph'),
+ cflags=bld.CONFIG_GET('CCFLAGS_CEPHFS'))
diff --git a/source3/wscript b/source3/wscript
index d687dae..18e45f2 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -54,6 +54,10 @@ def set_options(opt):
help=("enable building against (too) old version of ctdb (default=false)"),
action="store_true", dest='enable_old_ctdb', default=False)
+ opt.add_option('--with-libcephfs',
+ help=("Directory under which libcephfs is installed"),
+ action="store", dest='libcephfs_dir', default=None)
+
def configure(conf):
@@ -1699,6 +1703,14 @@ main() {
if conf.CHECK_HEADERS('linux/ioctl.h sys/ioctl.h'):
conf.DEFINE('HAVE_LINUX_IOCTL', '1')
+ conf.env['CCFLAGS_CEPHFS'] = "-D_FILE_OFFSET_BITS=64"
+ if Options.options.libcephfs_dir:
+ conf.env['CPPPATH_CEPHFS'] = Options.options.libcephfs_dir + '/include'
+ conf.env['LIBPATH_CEPHFS'] = Options.options.libcephfs_dir + '/lib'
+
+ if conf.CHECK_HEADERS('cephfs/libcephfs.h', False, False, 'cephfs') and conf.CHECK_LIB('cephfs'):
+ conf.DEFINE('HAVE_CEPH', '1')
+
default_static_modules.extend(TO_LIST('''pdb_smbpasswd pdb_tdbsam pdb_wbc_sam
auth_sam auth_unix auth_winbind auth_wbc
auth_domain auth_builtin vfs_default
@@ -1766,6 +1778,9 @@ main() {
if conf.CONFIG_SET('SAMBA_FAM_LIBS'):
default_shared_modules.extend(TO_LIST('vfs_notify_fam'))
+ if conf.CONFIG_SET("HAVE_CEPH"):
+ default_shared_modules.extend(TO_LIST('vfs_ceph'))
+
explicit_shared_modules = TO_LIST(Options.options.shared_modules, delimiter=',')
explicit_static_modules = TO_LIST(Options.options.static_modules, delimiter=',')
--
1.7.10.4
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