2 Unix SMB/CIFS implementation.
3 Wrap disk only vfs functions to sidestep dodgy compilers.
4 Copyright (C) Tim Potter 1998
5 Copyright (C) Jeremy Allison 2007
6 Copyright (C) Brian Chrisman 2011 <bchrisman@gmail.com>
7 Copyright (C) Richard Sharpe 2011 <realrichardsharpe@gmail.com>
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * This VFS only works with the libceph.so user-space client. It is not needed
25 * if you are using the kernel client or the FUSE client.
27 * Add the following smb.conf parameter to each share that will be hosted on
30 * vfs objects = ceph [any others you need go here]
34 #include "smbd/smbd.h"
35 #include "system/filesys.h"
37 #include <sys/statvfs.h>
38 #include "cephfs/libcephfs.h"
39 #include "smbprofile.h"
40 #include "modules/posixacl_xattr.h"
41 #include "lib/util/tevent_unix.h"
44 #define DBGC_CLASS DBGC_VFS
46 #ifndef LIBCEPHFS_VERSION
47 #define LIBCEPHFS_VERSION(maj, min, extra) ((maj << 16) + (min << 8) + extra)
48 #define LIBCEPHFS_VERSION_CODE LIBCEPHFS_VERSION(0, 0, 0)
52 * Use %llu whenever we have a 64bit unsigned int, and cast to (long long unsigned)
54 #define llu(_var) ((long long unsigned)_var)
57 * Note, libceph's return code model is to return -errno! So we have to convert
58 * to what Samba expects, with is set errno to -return and return -1
60 #define WRAP_RETURN(_res) \
69 * We mount only one file system and then all shares are assumed to be in that.
70 * FIXME: If we want to support more than one FS, then we have to deal with
73 * So, cmount tells us if we have been this way before and whether
74 * we need to mount ceph and cmount_cnt tells us how many times we have
77 static struct ceph_mount_info * cmount = NULL;
78 static uint32_t cmount_cnt = 0;
80 /* Check for NULL pointer parameters in cephwrap_* functions */
82 /* We don't want to have NULL function pointers lying around. Someone
83 is sure to try and execute them. These stubs are used to prevent
86 static int cephwrap_connect(struct vfs_handle_struct *handle, const char *service, const char *user)
90 int snum = SNUM(handle->conn);
91 const char *conf_file;
95 handle->data = cmount; /* We have been here before */
100 /* if config_file and/or user_id are NULL, ceph will use defaults */
101 conf_file = lp_parm_const_string(snum, "ceph", "config_file", NULL);
102 user_id = lp_parm_const_string(snum, "ceph", "user_id", NULL);
104 DBG_DEBUG("[CEPH] calling: ceph_create\n");
105 ret = ceph_create(&cmount, user_id);
110 DBG_DEBUG("[CEPH] calling: ceph_conf_read_file with %s\n",
111 (conf_file == NULL ? "default path" : conf_file));
112 ret = ceph_conf_read_file(cmount, conf_file);
117 DBG_DEBUG("[CEPH] calling: ceph_conf_get\n");
118 ret = ceph_conf_get(cmount, "log file", buf, sizeof(buf));
123 /* libcephfs disables POSIX ACL support by default, enable it... */
124 ret = ceph_conf_set(cmount, "client_acl_type", "posix_acl");
128 /* tell libcephfs to perform local permission checks */
129 ret = ceph_conf_set(cmount, "fuse_default_permissions", "false");
134 DBG_DEBUG("[CEPH] calling: ceph_mount\n");
135 ret = ceph_mount(cmount, NULL);
141 * encode mount context/state into our vfs/connection holding structure
142 * cmount is a ceph_mount_t*
144 handle->data = cmount;
148 * Unless we have an async implementation of getxattrat turn this off.
150 lp_do_parameter(SNUM(handle->conn), "smbd async dosmode", "false");
155 ceph_release(cmount);
159 * Handle the error correctly. Ceph returns -errno.
161 DBG_DEBUG("[CEPH] Error return: %s\n", strerror(-ret));
165 static void cephwrap_disconnect(struct vfs_handle_struct *handle)
170 DBG_ERR("[CEPH] Error, ceph not mounted\n");
174 /* Should we unmount/shutdown? Only if the last disconnect? */
176 DBG_DEBUG("[CEPH] Not shuting down CEPH because still more connections\n");
180 ret = ceph_unmount(cmount);
182 DBG_ERR("[CEPH] failed to unmount: %s\n", strerror(-ret));
185 ret = ceph_release(cmount);
187 DBG_ERR("[CEPH] failed to release: %s\n", strerror(-ret));
190 cmount = NULL; /* Make it safe */
193 /* Disk operations */
195 static uint64_t cephwrap_disk_free(struct vfs_handle_struct *handle,
196 const struct smb_filename *smb_fname,
201 struct statvfs statvfs_buf;
204 if (!(ret = ceph_statfs(handle->data, smb_fname->base_name,
207 * Provide all the correct values.
209 *bsize = statvfs_buf.f_bsize;
210 *dfree = statvfs_buf.f_bavail;
211 *dsize = statvfs_buf.f_blocks;
212 DBG_DEBUG("[CEPH] bsize: %llu, dfree: %llu, dsize: %llu\n",
213 llu(*bsize), llu(*dfree), llu(*dsize));
216 DBG_DEBUG("[CEPH] ceph_statfs returned %d\n", ret);
221 static int cephwrap_get_quota(struct vfs_handle_struct *handle,
222 const struct smb_filename *smb_fname,
223 enum SMB_QUOTA_TYPE qtype,
227 /* libceph: Ceph does not implement this */
229 /* was ifdef HAVE_SYS_QUOTAS */
232 ret = ceph_get_quota(handle->conn->connectpath, qtype, id, qt);
246 static int cephwrap_set_quota(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
248 /* libceph: Ceph does not implement this */
250 /* was ifdef HAVE_SYS_QUOTAS */
253 ret = ceph_set_quota(handle->conn->connectpath, qtype, id, qt);
261 WRAP_RETURN(-ENOSYS);
265 static int cephwrap_statvfs(struct vfs_handle_struct *handle,
266 const struct smb_filename *smb_fname,
267 vfs_statvfs_struct *statbuf)
269 struct statvfs statvfs_buf;
272 ret = ceph_statfs(handle->data, smb_fname->base_name, &statvfs_buf);
277 statbuf->OptimalTransferSize = statvfs_buf.f_frsize;
278 statbuf->BlockSize = statvfs_buf.f_bsize;
279 statbuf->TotalBlocks = statvfs_buf.f_blocks;
280 statbuf->BlocksAvail = statvfs_buf.f_bfree;
281 statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
282 statbuf->TotalFileNodes = statvfs_buf.f_files;
283 statbuf->FreeFileNodes = statvfs_buf.f_ffree;
284 statbuf->FsIdentifier = statvfs_buf.f_fsid;
285 DBG_DEBUG("[CEPH] f_bsize: %ld, f_blocks: %ld, f_bfree: %ld, f_bavail: %ld\n",
286 (long int)statvfs_buf.f_bsize, (long int)statvfs_buf.f_blocks,
287 (long int)statvfs_buf.f_bfree, (long int)statvfs_buf.f_bavail);
292 static uint32_t cephwrap_fs_capabilities(struct vfs_handle_struct *handle,
293 enum timestamp_set_resolution *p_ts_res)
295 uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
297 *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
302 /* Directory operations */
304 static DIR *cephwrap_fdopendir(struct vfs_handle_struct *handle,
305 struct files_struct *fsp,
310 struct ceph_dir_result *result;
311 DBG_DEBUG("[CEPH] fdopendir(%p, %p)\n", handle, fsp);
313 ret = ceph_opendir(handle->data, fsp->fsp_name->base_name, &result);
316 errno = -ret; /* We return result which is NULL in this case */
319 DBG_DEBUG("[CEPH] fdopendir(...) = %d\n", ret);
320 return (DIR *) result;
323 static struct dirent *cephwrap_readdir(struct vfs_handle_struct *handle,
324 struct files_struct *dirfsp,
326 SMB_STRUCT_STAT *sbuf)
328 struct dirent *result;
330 DBG_DEBUG("[CEPH] readdir(%p, %p)\n", handle, dirp);
331 result = ceph_readdir(handle->data, (struct ceph_dir_result *) dirp);
332 DBG_DEBUG("[CEPH] readdir(...) = %p\n", result);
334 /* Default Posix readdir() does not give us stat info.
335 * Set to invalid to indicate we didn't return this info. */
337 SET_STAT_INVALID(*sbuf);
341 static void cephwrap_seekdir(struct vfs_handle_struct *handle, DIR *dirp, long offset)
343 DBG_DEBUG("[CEPH] seekdir(%p, %p, %ld)\n", handle, dirp, offset);
344 ceph_seekdir(handle->data, (struct ceph_dir_result *) dirp, offset);
347 static long cephwrap_telldir(struct vfs_handle_struct *handle, DIR *dirp)
350 DBG_DEBUG("[CEPH] telldir(%p, %p)\n", handle, dirp);
351 ret = ceph_telldir(handle->data, (struct ceph_dir_result *) dirp);
352 DBG_DEBUG("[CEPH] telldir(...) = %ld\n", ret);
356 static void cephwrap_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
358 DBG_DEBUG("[CEPH] rewinddir(%p, %p)\n", handle, dirp);
359 ceph_rewinddir(handle->data, (struct ceph_dir_result *) dirp);
362 static int cephwrap_mkdirat(struct vfs_handle_struct *handle,
363 files_struct *dirfsp,
364 const struct smb_filename *smb_fname,
368 struct smb_filename *parent = NULL;
371 DBG_DEBUG("[CEPH] mkdir(%p, %s)\n",
372 handle, smb_fname_str_dbg(smb_fname));
374 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
376 if (lp_inherit_acls(SNUM(handle->conn))) {
377 ok = parent_smb_fname(talloc_tos(), smb_fname, &parent, NULL);
378 if (ok && directory_has_default_acl(handle->conn,
388 result = ceph_mkdir(handle->data, smb_fname->base_name, mode);
389 return WRAP_RETURN(result);
392 static int cephwrap_closedir(struct vfs_handle_struct *handle, DIR *dirp)
396 DBG_DEBUG("[CEPH] closedir(%p, %p)\n", handle, dirp);
397 result = ceph_closedir(handle->data, (struct ceph_dir_result *) dirp);
398 DBG_DEBUG("[CEPH] closedir(...) = %d\n", result);
402 /* File operations */
404 static int cephwrap_openat(struct vfs_handle_struct *handle,
405 const struct files_struct *dirfsp,
406 const struct smb_filename *smb_fname,
411 bool have_opath = false;
412 bool became_root = false;
413 int result = -ENOENT;
416 * cephfs API doesn't have ceph_openat(), so for now assert this.
418 SMB_ASSERT(fsp_get_pathref_fd(dirfsp) == AT_FDCWD);
420 DBG_DEBUG("[CEPH] openat(%p, %s, %p, %d, %d)\n", handle,
421 smb_fname_str_dbg(smb_fname), fsp, flags, mode);
423 if (smb_fname->stream_name) {
429 if (fsp->fsp_flags.is_pathref) {
434 if (fsp->fsp_flags.is_pathref && !have_opath) {
439 result = ceph_open(handle->data, smb_fname->base_name, flags, mode);
446 fsp->fsp_flags.have_proc_fds = false;
447 DBG_DEBUG("[CEPH] open(...) = %d\n", result);
451 static int cephwrap_close(struct vfs_handle_struct *handle, files_struct *fsp)
455 DBG_DEBUG("[CEPH] close(%p, %p)\n", handle, fsp);
456 result = ceph_close(handle->data, fsp_get_io_fd(fsp));
457 DBG_DEBUG("[CEPH] close(...) = %d\n", result);
462 static ssize_t cephwrap_pread(struct vfs_handle_struct *handle, files_struct *fsp, void *data,
463 size_t n, off_t offset)
467 DBG_DEBUG("[CEPH] pread(%p, %p, %p, %llu, %llu)\n", handle, fsp, data, llu(n), llu(offset));
469 result = ceph_read(handle->data, fsp_get_io_fd(fsp), data, n, offset);
470 DBG_DEBUG("[CEPH] pread(...) = %llu\n", llu(result));
474 struct cephwrap_pread_state {
476 struct vfs_aio_state vfs_aio_state;
480 * Fake up an async ceph read by calling the synchronous API.
482 static struct tevent_req *cephwrap_pread_send(struct vfs_handle_struct *handle,
484 struct tevent_context *ev,
485 struct files_struct *fsp,
487 size_t n, off_t offset)
489 struct tevent_req *req = NULL;
490 struct cephwrap_pread_state *state = NULL;
493 DBG_DEBUG("[CEPH] %s\n", __func__);
494 req = tevent_req_create(mem_ctx, &state, struct cephwrap_pread_state);
499 ret = ceph_read(handle->data, fsp_get_io_fd(fsp), data, n, offset);
501 /* ceph returns -errno on error. */
502 tevent_req_error(req, -ret);
503 return tevent_req_post(req, ev);
506 state->bytes_read = ret;
507 tevent_req_done(req);
508 /* Return and schedule the completion of the call. */
509 return tevent_req_post(req, ev);
512 static ssize_t cephwrap_pread_recv(struct tevent_req *req,
513 struct vfs_aio_state *vfs_aio_state)
515 struct cephwrap_pread_state *state =
516 tevent_req_data(req, struct cephwrap_pread_state);
518 DBG_DEBUG("[CEPH] %s\n", __func__);
519 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
522 *vfs_aio_state = state->vfs_aio_state;
523 return state->bytes_read;
526 static ssize_t cephwrap_pwrite(struct vfs_handle_struct *handle, files_struct *fsp, const void *data,
527 size_t n, off_t offset)
531 DBG_DEBUG("[CEPH] pwrite(%p, %p, %p, %llu, %llu)\n", handle, fsp, data, llu(n), llu(offset));
532 result = ceph_write(handle->data, fsp_get_io_fd(fsp), data, n, offset);
533 DBG_DEBUG("[CEPH] pwrite(...) = %llu\n", llu(result));
537 struct cephwrap_pwrite_state {
538 ssize_t bytes_written;
539 struct vfs_aio_state vfs_aio_state;
543 * Fake up an async ceph write by calling the synchronous API.
545 static struct tevent_req *cephwrap_pwrite_send(struct vfs_handle_struct *handle,
547 struct tevent_context *ev,
548 struct files_struct *fsp,
550 size_t n, off_t offset)
552 struct tevent_req *req = NULL;
553 struct cephwrap_pwrite_state *state = NULL;
556 DBG_DEBUG("[CEPH] %s\n", __func__);
557 req = tevent_req_create(mem_ctx, &state, struct cephwrap_pwrite_state);
562 ret = ceph_write(handle->data, fsp_get_io_fd(fsp), data, n, offset);
564 /* ceph returns -errno on error. */
565 tevent_req_error(req, -ret);
566 return tevent_req_post(req, ev);
569 state->bytes_written = ret;
570 tevent_req_done(req);
571 /* Return and schedule the completion of the call. */
572 return tevent_req_post(req, ev);
575 static ssize_t cephwrap_pwrite_recv(struct tevent_req *req,
576 struct vfs_aio_state *vfs_aio_state)
578 struct cephwrap_pwrite_state *state =
579 tevent_req_data(req, struct cephwrap_pwrite_state);
581 DBG_DEBUG("[CEPH] %s\n", __func__);
582 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
585 *vfs_aio_state = state->vfs_aio_state;
586 return state->bytes_written;
589 static off_t cephwrap_lseek(struct vfs_handle_struct *handle, files_struct *fsp, off_t offset, int whence)
593 DBG_DEBUG("[CEPH] cephwrap_lseek\n");
594 result = ceph_lseek(handle->data, fsp_get_io_fd(fsp), offset, whence);
598 static ssize_t cephwrap_sendfile(struct vfs_handle_struct *handle, int tofd, files_struct *fromfsp, const DATA_BLOB *hdr,
599 off_t offset, size_t n)
602 * We cannot support sendfile because libceph is in user space.
604 DBG_DEBUG("[CEPH] cephwrap_sendfile\n");
609 static ssize_t cephwrap_recvfile(struct vfs_handle_struct *handle,
616 * We cannot support recvfile because libceph is in user space.
618 DBG_DEBUG("[CEPH] cephwrap_recvfile\n");
623 static int cephwrap_renameat(struct vfs_handle_struct *handle,
624 files_struct *srcfsp,
625 const struct smb_filename *smb_fname_src,
626 files_struct *dstfsp,
627 const struct smb_filename *smb_fname_dst)
630 DBG_DEBUG("[CEPH] cephwrap_renameat\n");
631 if (smb_fname_src->stream_name || smb_fname_dst->stream_name) {
636 SMB_ASSERT(srcfsp == srcfsp->conn->cwd_fsp);
637 SMB_ASSERT(dstfsp == dstfsp->conn->cwd_fsp);
639 result = ceph_rename(handle->data, smb_fname_src->base_name, smb_fname_dst->base_name);
644 * Fake up an async ceph fsync by calling the synchronous API.
647 static struct tevent_req *cephwrap_fsync_send(struct vfs_handle_struct *handle,
649 struct tevent_context *ev,
652 struct tevent_req *req = NULL;
653 struct vfs_aio_state *state = NULL;
656 DBG_DEBUG("[CEPH] cephwrap_fsync_send\n");
658 req = tevent_req_create(mem_ctx, &state, struct vfs_aio_state);
663 /* Make sync call. */
664 ret = ceph_fsync(handle->data, fsp_get_io_fd(fsp), false);
667 /* ceph_fsync returns -errno on error. */
668 tevent_req_error(req, -ret);
669 return tevent_req_post(req, ev);
672 /* Mark it as done. */
673 tevent_req_done(req);
674 /* Return and schedule the completion of the call. */
675 return tevent_req_post(req, ev);
678 static int cephwrap_fsync_recv(struct tevent_req *req,
679 struct vfs_aio_state *vfs_aio_state)
681 struct vfs_aio_state *state =
682 tevent_req_data(req, struct vfs_aio_state);
684 DBG_DEBUG("[CEPH] cephwrap_fsync_recv\n");
686 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
689 *vfs_aio_state = *state;
693 #define SAMBA_STATX_ATTR_MASK (CEPH_STATX_BASIC_STATS|CEPH_STATX_BTIME)
695 static void init_stat_ex_from_ceph_statx(struct stat_ex *dst, const struct ceph_statx *stx)
697 DBG_DEBUG("[CEPH]\tstx = {dev = %llx, ino = %llu, mode = 0x%x, "
698 "nlink = %llu, uid = %d, gid = %d, rdev = %llx, size = %llu, "
699 "blksize = %llu, blocks = %llu, atime = %llu, mtime = %llu, "
700 "ctime = %llu, btime = %llu}\n",
701 llu(stx->stx_dev), llu(stx->stx_ino), stx->stx_mode,
702 llu(stx->stx_nlink), stx->stx_uid, stx->stx_gid,
703 llu(stx->stx_rdev), llu(stx->stx_size), llu(stx->stx_blksize),
704 llu(stx->stx_blocks), llu(stx->stx_atime.tv_sec),
705 llu(stx->stx_mtime.tv_sec), llu(stx->stx_ctime.tv_sec),
706 llu(stx->stx_btime.tv_sec));
708 if ((stx->stx_mask & SAMBA_STATX_ATTR_MASK) != SAMBA_STATX_ATTR_MASK) {
709 DBG_WARNING("%s: stx->stx_mask is incorrect (wanted %x, got %x)",
710 __func__, SAMBA_STATX_ATTR_MASK, stx->stx_mask);
713 dst->st_ex_dev = stx->stx_dev;
714 dst->st_ex_rdev = stx->stx_rdev;
715 dst->st_ex_ino = stx->stx_ino;
716 dst->st_ex_mode = stx->stx_mode;
717 dst->st_ex_uid = stx->stx_uid;
718 dst->st_ex_gid = stx->stx_gid;
719 dst->st_ex_size = stx->stx_size;
720 dst->st_ex_nlink = stx->stx_nlink;
721 dst->st_ex_atime = stx->stx_atime;
722 dst->st_ex_btime = stx->stx_btime;
723 dst->st_ex_ctime = stx->stx_ctime;
724 dst->st_ex_mtime = stx->stx_mtime;
725 dst->st_ex_itime = dst->st_ex_btime;
726 dst->st_ex_iflags = ST_EX_IFLAG_CALCULATED_ITIME;
727 dst->st_ex_blksize = stx->stx_blksize;
728 dst->st_ex_blocks = stx->stx_blocks;
729 dst->st_ex_file_id = dst->st_ex_ino;
730 dst->st_ex_iflags |= ST_EX_IFLAG_CALCULATED_FILE_ID;
733 static int cephwrap_stat(struct vfs_handle_struct *handle,
734 struct smb_filename *smb_fname)
737 struct ceph_statx stx;
739 DBG_DEBUG("[CEPH] stat(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname));
741 if (smb_fname->stream_name) {
746 result = ceph_statx(handle->data, smb_fname->base_name, &stx,
747 SAMBA_STATX_ATTR_MASK, 0);
748 DBG_DEBUG("[CEPH] statx(...) = %d\n", result);
753 init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
754 DBG_DEBUG("[CEPH] mode = 0x%x\n", smb_fname->st.st_ex_mode);
758 static int cephwrap_fstat(struct vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf)
761 struct ceph_statx stx;
763 DBG_DEBUG("[CEPH] fstat(%p, %d)\n", handle, fsp_get_io_fd(fsp));
764 result = ceph_fstatx(handle->data, fsp_get_io_fd(fsp), &stx,
765 SAMBA_STATX_ATTR_MASK, 0);
766 DBG_DEBUG("[CEPH] fstat(...) = %d\n", result);
771 init_stat_ex_from_ceph_statx(sbuf, &stx);
772 DBG_DEBUG("[CEPH] mode = 0x%x\n", sbuf->st_ex_mode);
776 static int cephwrap_lstat(struct vfs_handle_struct *handle,
777 struct smb_filename *smb_fname)
780 struct ceph_statx stx;
782 DBG_DEBUG("[CEPH] lstat(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname));
784 if (smb_fname->stream_name) {
789 result = ceph_statx(handle->data, smb_fname->base_name, &stx,
790 SAMBA_STATX_ATTR_MASK, AT_SYMLINK_NOFOLLOW);
791 DBG_DEBUG("[CEPH] lstat(...) = %d\n", result);
796 init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
800 static int cephwrap_ntimes(struct vfs_handle_struct *handle,
801 const struct smb_filename *smb_fname,
802 struct smb_file_time *ft)
804 struct ceph_statx stx = { 0 };
808 if (!is_omit_timespec(&ft->atime)) {
809 stx.stx_atime = ft->atime;
810 mask |= CEPH_SETATTR_ATIME;
812 if (!is_omit_timespec(&ft->mtime)) {
813 stx.stx_mtime = ft->mtime;
814 mask |= CEPH_SETATTR_MTIME;
816 if (!is_omit_timespec(&ft->create_time)) {
817 stx.stx_btime = ft->create_time;
818 mask |= CEPH_SETATTR_BTIME;
825 result = ceph_setattrx(handle->data, smb_fname->base_name, &stx, mask, 0);
826 DBG_DEBUG("[CEPH] ntimes(%p, %s, {%ld, %ld, %ld, %ld}) = %d\n", handle, smb_fname_str_dbg(smb_fname),
827 ft->mtime.tv_sec, ft->atime.tv_sec, ft->ctime.tv_sec,
828 ft->create_time.tv_sec, result);
832 static int cephwrap_unlinkat(struct vfs_handle_struct *handle,
833 struct files_struct *dirfsp,
834 const struct smb_filename *smb_fname,
839 DBG_DEBUG("[CEPH] unlink(%p, %s)\n",
841 smb_fname_str_dbg(smb_fname));
842 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
843 if (smb_fname->stream_name) {
847 if (flags & AT_REMOVEDIR) {
848 result = ceph_rmdir(handle->data, smb_fname->base_name);
850 result = ceph_unlink(handle->data, smb_fname->base_name);
852 DBG_DEBUG("[CEPH] unlink(...) = %d\n", result);
856 static int cephwrap_chmod(struct vfs_handle_struct *handle,
857 const struct smb_filename *smb_fname,
862 DBG_DEBUG("[CEPH] chmod(%p, %s, %d)\n", handle, smb_fname->base_name, mode);
863 result = ceph_chmod(handle->data, smb_fname->base_name, mode);
864 DBG_DEBUG("[CEPH] chmod(...) = %d\n", result);
868 static int cephwrap_fchmod(struct vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
872 DBG_DEBUG("[CEPH] fchmod(%p, %p, %d)\n", handle, fsp, mode);
873 result = ceph_fchmod(handle->data, fsp_get_io_fd(fsp), mode);
874 DBG_DEBUG("[CEPH] fchmod(...) = %d\n", result);
878 static int cephwrap_fchown(struct vfs_handle_struct *handle, files_struct *fsp, uid_t uid, gid_t gid)
882 DBG_DEBUG("[CEPH] fchown(%p, %p, %d, %d)\n", handle, fsp, uid, gid);
883 result = ceph_fchown(handle->data, fsp_get_io_fd(fsp), uid, gid);
884 DBG_DEBUG("[CEPH] fchown(...) = %d\n", result);
888 static int cephwrap_lchown(struct vfs_handle_struct *handle,
889 const struct smb_filename *smb_fname,
894 DBG_DEBUG("[CEPH] lchown(%p, %s, %d, %d)\n", handle, smb_fname->base_name, uid, gid);
895 result = ceph_lchown(handle->data, smb_fname->base_name, uid, gid);
896 DBG_DEBUG("[CEPH] lchown(...) = %d\n", result);
900 static int cephwrap_chdir(struct vfs_handle_struct *handle,
901 const struct smb_filename *smb_fname)
904 DBG_DEBUG("[CEPH] chdir(%p, %s)\n", handle, smb_fname->base_name);
905 result = ceph_chdir(handle->data, smb_fname->base_name);
906 DBG_DEBUG("[CEPH] chdir(...) = %d\n", result);
910 static struct smb_filename *cephwrap_getwd(struct vfs_handle_struct *handle,
913 const char *cwd = ceph_getcwd(handle->data);
914 DBG_DEBUG("[CEPH] getwd(%p) = %s\n", handle, cwd);
915 return synthetic_smb_fname(ctx,
923 static int strict_allocate_ftruncate(struct vfs_handle_struct *handle, files_struct *fsp, off_t len)
925 off_t space_to_write;
928 SMB_STRUCT_STAT *pst;
930 status = vfs_stat_fsp(fsp);
931 if (!NT_STATUS_IS_OK(status)) {
934 pst = &fsp->fsp_name->st;
937 if (S_ISFIFO(pst->st_ex_mode))
941 if (pst->st_ex_size == len)
944 /* Shrink - just ftruncate. */
945 if (pst->st_ex_size > len) {
946 result = ceph_ftruncate(handle->data, fsp_get_io_fd(fsp), len);
950 space_to_write = len - pst->st_ex_size;
951 result = ceph_fallocate(handle->data, fsp_get_io_fd(fsp), 0, pst->st_ex_size,
956 static int cephwrap_ftruncate(struct vfs_handle_struct *handle, files_struct *fsp, off_t len)
960 DBG_DEBUG("[CEPH] ftruncate(%p, %p, %llu\n", handle, fsp, llu(len));
962 if (lp_strict_allocate(SNUM(fsp->conn))) {
963 return strict_allocate_ftruncate(handle, fsp, len);
966 result = ceph_ftruncate(handle->data, fsp_get_io_fd(fsp), len);
970 static int cephwrap_fallocate(struct vfs_handle_struct *handle,
971 struct files_struct *fsp,
978 DBG_DEBUG("[CEPH] fallocate(%p, %p, %u, %llu, %llu\n",
979 handle, fsp, mode, llu(offset), llu(len));
980 /* unsupported mode flags are rejected by libcephfs */
981 result = ceph_fallocate(handle->data, fsp_get_io_fd(fsp), mode, offset, len);
982 DBG_DEBUG("[CEPH] fallocate(...) = %d\n", result);
986 static bool cephwrap_lock(struct vfs_handle_struct *handle, files_struct *fsp, int op, off_t offset, off_t count, int type)
988 DBG_DEBUG("[CEPH] lock\n");
992 static int cephwrap_kernel_flock(struct vfs_handle_struct *handle,
994 uint32_t share_access,
995 uint32_t access_mask)
997 DBG_ERR("[CEPH] flock unsupported! Consider setting "
998 "\"kernel share modes = no\"\n");
1004 static int cephwrap_fcntl(vfs_handle_struct *handle,
1005 files_struct *fsp, int cmd, va_list cmd_arg)
1008 * SMB_VFS_FCNTL() is currently only called by vfs_set_blocking() to
1009 * clear O_NONBLOCK, etc for LOCK_MAND and FIFOs. Ignore it.
1011 if (cmd == F_GETFL) {
1013 } else if (cmd == F_SETFL) {
1014 va_list dup_cmd_arg;
1017 va_copy(dup_cmd_arg, cmd_arg);
1018 opt = va_arg(dup_cmd_arg, int);
1019 va_end(dup_cmd_arg);
1023 DBG_ERR("unexpected fcntl SETFL(%d)\n", opt);
1026 DBG_ERR("unexpected fcntl: %d\n", cmd);
1032 static bool cephwrap_getlock(struct vfs_handle_struct *handle, files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
1034 DBG_DEBUG("[CEPH] getlock returning false and errno=0\n");
1041 * We cannot let this fall through to the default, because the file might only
1042 * be accessible from libceph (which is a user-space client) but the fd might
1043 * be for some file the kernel knows about.
1045 static int cephwrap_linux_setlease(struct vfs_handle_struct *handle, files_struct *fsp,
1050 DBG_DEBUG("[CEPH] linux_setlease\n");
1055 static int cephwrap_symlinkat(struct vfs_handle_struct *handle,
1056 const struct smb_filename *link_target,
1057 struct files_struct *dirfsp,
1058 const struct smb_filename *new_smb_fname)
1061 DBG_DEBUG("[CEPH] symlink(%p, %s, %s)\n", handle,
1062 link_target->base_name,
1063 new_smb_fname->base_name);
1065 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1067 result = ceph_symlink(handle->data,
1068 link_target->base_name,
1069 new_smb_fname->base_name);
1070 DBG_DEBUG("[CEPH] symlink(...) = %d\n", result);
1071 WRAP_RETURN(result);
1074 static int cephwrap_readlinkat(struct vfs_handle_struct *handle,
1075 const struct files_struct *dirfsp,
1076 const struct smb_filename *smb_fname,
1081 DBG_DEBUG("[CEPH] readlink(%p, %s, %p, %llu)\n", handle,
1082 smb_fname->base_name, buf, llu(bufsiz));
1084 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1086 result = ceph_readlink(handle->data, smb_fname->base_name, buf, bufsiz);
1087 DBG_DEBUG("[CEPH] readlink(...) = %d\n", result);
1088 WRAP_RETURN(result);
1091 static int cephwrap_linkat(struct vfs_handle_struct *handle,
1092 files_struct *srcfsp,
1093 const struct smb_filename *old_smb_fname,
1094 files_struct *dstfsp,
1095 const struct smb_filename *new_smb_fname,
1099 DBG_DEBUG("[CEPH] link(%p, %s, %s)\n", handle,
1100 old_smb_fname->base_name,
1101 new_smb_fname->base_name);
1103 SMB_ASSERT(srcfsp == srcfsp->conn->cwd_fsp);
1104 SMB_ASSERT(dstfsp == dstfsp->conn->cwd_fsp);
1106 result = ceph_link(handle->data,
1107 old_smb_fname->base_name,
1108 new_smb_fname->base_name);
1109 DBG_DEBUG("[CEPH] link(...) = %d\n", result);
1110 WRAP_RETURN(result);
1113 static int cephwrap_mknodat(struct vfs_handle_struct *handle,
1114 files_struct *dirfsp,
1115 const struct smb_filename *smb_fname,
1120 DBG_DEBUG("[CEPH] mknodat(%p, %s)\n", handle, smb_fname->base_name);
1121 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1122 result = ceph_mknod(handle->data, smb_fname->base_name, mode, dev);
1123 DBG_DEBUG("[CEPH] mknodat(...) = %d\n", result);
1124 WRAP_RETURN(result);
1128 * This is a simple version of real-path ... a better version is needed to
1129 * ask libceph about symbolic links.
1131 static struct smb_filename *cephwrap_realpath(struct vfs_handle_struct *handle,
1133 const struct smb_filename *smb_fname)
1135 char *result = NULL;
1136 const char *path = smb_fname->base_name;
1137 size_t len = strlen(path);
1138 struct smb_filename *result_fname = NULL;
1141 if (len && (path[0] == '/')) {
1142 r = asprintf(&result, "%s", path);
1143 } else if ((len >= 2) && (path[0] == '.') && (path[1] == '/')) {
1145 r = asprintf(&result, "%s",
1146 handle->conn->cwd_fsp->fsp_name->base_name);
1148 r = asprintf(&result, "%s/%s",
1149 handle->conn->cwd_fsp->fsp_name->base_name, &path[2]);
1152 r = asprintf(&result, "%s/%s",
1153 handle->conn->cwd_fsp->fsp_name->base_name, path);
1160 DBG_DEBUG("[CEPH] realpath(%p, %s) = %s\n", handle, path, result);
1161 result_fname = synthetic_smb_fname(ctx,
1168 return result_fname;
1171 static int cephwrap_chflags(struct vfs_handle_struct *handle,
1172 const struct smb_filename *smb_fname,
1179 static int cephwrap_get_real_filename(struct vfs_handle_struct *handle,
1180 const struct smb_filename *path,
1182 TALLOC_CTX *mem_ctx,
1186 * Don't fall back to get_real_filename so callers can differentiate
1187 * between a full directory scan and an actual case-insensitive stat.
1193 static const char *cephwrap_connectpath(struct vfs_handle_struct *handle,
1194 const struct smb_filename *smb_fname)
1196 return handle->conn->connectpath;
1199 /****************************************************************
1200 Extended attribute operations.
1201 *****************************************************************/
1203 static ssize_t cephwrap_getxattr(struct vfs_handle_struct *handle,
1204 const struct smb_filename *smb_fname,
1210 DBG_DEBUG("[CEPH] getxattr(%p, %s, %s, %p, %llu)\n", handle,
1211 smb_fname->base_name, name, value, llu(size));
1212 ret = ceph_getxattr(handle->data,
1213 smb_fname->base_name, name, value, size);
1214 DBG_DEBUG("[CEPH] getxattr(...) = %d\n", ret);
1218 return (ssize_t)ret;
1221 static ssize_t cephwrap_fgetxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, void *value, size_t size)
1224 DBG_DEBUG("[CEPH] fgetxattr(%p, %p, %s, %p, %llu)\n", handle, fsp, name, value, llu(size));
1225 ret = ceph_fgetxattr(handle->data, fsp_get_io_fd(fsp), name, value, size);
1226 DBG_DEBUG("[CEPH] fgetxattr(...) = %d\n", ret);
1230 return (ssize_t)ret;
1233 static ssize_t cephwrap_listxattr(struct vfs_handle_struct *handle,
1234 const struct smb_filename *smb_fname,
1239 DBG_DEBUG("[CEPH] listxattr(%p, %s, %p, %llu)\n", handle,
1240 smb_fname->base_name, list, llu(size));
1241 ret = ceph_listxattr(handle->data, smb_fname->base_name, list, size);
1242 DBG_DEBUG("[CEPH] listxattr(...) = %d\n", ret);
1246 return (ssize_t)ret;
1249 static ssize_t cephwrap_flistxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size)
1252 DBG_DEBUG("[CEPH] flistxattr(%p, %p, %p, %llu)\n",
1253 handle, fsp, list, llu(size));
1254 ret = ceph_flistxattr(handle->data, fsp_get_io_fd(fsp), list, size);
1255 DBG_DEBUG("[CEPH] flistxattr(...) = %d\n", ret);
1259 return (ssize_t)ret;
1262 static int cephwrap_removexattr(struct vfs_handle_struct *handle,
1263 const struct smb_filename *smb_fname,
1267 DBG_DEBUG("[CEPH] removexattr(%p, %s, %s)\n", handle,
1268 smb_fname->base_name, name);
1269 ret = ceph_removexattr(handle->data, smb_fname->base_name, name);
1270 DBG_DEBUG("[CEPH] removexattr(...) = %d\n", ret);
1274 static int cephwrap_fremovexattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name)
1277 DBG_DEBUG("[CEPH] fremovexattr(%p, %p, %s)\n", handle, fsp, name);
1278 ret = ceph_fremovexattr(handle->data, fsp_get_io_fd(fsp), name);
1279 DBG_DEBUG("[CEPH] fremovexattr(...) = %d\n", ret);
1283 static int cephwrap_setxattr(struct vfs_handle_struct *handle,
1284 const struct smb_filename *smb_fname,
1291 DBG_DEBUG("[CEPH] setxattr(%p, %s, %s, %p, %llu, %d)\n", handle,
1292 smb_fname->base_name, name, value, llu(size), flags);
1293 ret = ceph_setxattr(handle->data, smb_fname->base_name,
1294 name, value, size, flags);
1295 DBG_DEBUG("[CEPH] setxattr(...) = %d\n", ret);
1299 static int cephwrap_fsetxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name, const void *value, size_t size, int flags)
1302 DBG_DEBUG("[CEPH] fsetxattr(%p, %p, %s, %p, %llu, %d)\n", handle, fsp, name, value, llu(size), flags);
1303 ret = ceph_fsetxattr(handle->data, fsp_get_io_fd(fsp),
1304 name, value, size, flags);
1305 DBG_DEBUG("[CEPH] fsetxattr(...) = %d\n", ret);
1309 static bool cephwrap_aio_force(struct vfs_handle_struct *handle, struct files_struct *fsp)
1313 * We do not support AIO yet.
1316 DBG_DEBUG("[CEPH] cephwrap_aio_force(%p, %p) = false (errno = ENOTSUP)\n", handle, fsp);
1321 static NTSTATUS cephwrap_create_dfs_pathat(struct vfs_handle_struct *handle,
1322 struct files_struct *dirfsp,
1323 const struct smb_filename *smb_fname,
1324 const struct referral *reflist,
1325 size_t referral_count)
1327 TALLOC_CTX *frame = talloc_stackframe();
1328 NTSTATUS status = NT_STATUS_NO_MEMORY;
1330 char *msdfs_link = NULL;
1332 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1334 /* Form the msdfs_link contents */
1335 msdfs_link = msdfs_link_string(frame,
1338 if (msdfs_link == NULL) {
1342 ret = ceph_symlink(handle->data,
1344 smb_fname->base_name);
1346 status = NT_STATUS_OK;
1348 status = map_nt_error_from_unix(-ret);
1353 DBG_DEBUG("[CEPH] create_dfs_pathat(%s) = %s\n",
1354 smb_fname->base_name,
1362 * Read and return the contents of a DFS redirect given a
1363 * pathname. A caller can pass in NULL for ppreflist and
1364 * preferral_count but still determine if this was a
1365 * DFS redirect point by getting NT_STATUS_OK back
1366 * without incurring the overhead of reading and parsing
1367 * the referral contents.
1370 static NTSTATUS cephwrap_read_dfs_pathat(struct vfs_handle_struct *handle,
1371 TALLOC_CTX *mem_ctx,
1372 struct files_struct *dirfsp,
1373 struct smb_filename *smb_fname,
1374 struct referral **ppreflist,
1375 size_t *preferral_count)
1377 NTSTATUS status = NT_STATUS_NO_MEMORY;
1379 char *link_target = NULL;
1382 #if defined(HAVE_BROKEN_READLINK)
1383 char link_target_buf[PATH_MAX];
1385 char link_target_buf[7];
1387 struct ceph_statx stx;
1390 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
1392 if (is_named_stream(smb_fname)) {
1393 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
1397 if (ppreflist == NULL && preferral_count == NULL) {
1399 * We're only checking if this is a DFS
1400 * redirect. We don't need to return data.
1402 bufsize = sizeof(link_target_buf);
1403 link_target = link_target_buf;
1406 link_target = talloc_array(mem_ctx, char, bufsize);
1412 ret = ceph_statx(handle->data,
1413 smb_fname->base_name,
1415 SAMBA_STATX_ATTR_MASK,
1416 AT_SYMLINK_NOFOLLOW);
1418 status = map_nt_error_from_unix(-ret);
1422 referral_len = ceph_readlink(handle->data,
1423 smb_fname->base_name,
1426 if (referral_len < 0) {
1427 /* ceph errors are -errno. */
1428 if (-referral_len == EINVAL) {
1429 DBG_INFO("%s is not a link.\n",
1430 smb_fname->base_name);
1431 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
1433 status = map_nt_error_from_unix(-referral_len);
1434 DBG_ERR("Error reading "
1435 "msdfs link %s: %s\n",
1436 smb_fname->base_name,
1441 link_target[referral_len] = '\0';
1443 DBG_INFO("%s -> %s\n",
1444 smb_fname->base_name,
1447 if (!strnequal(link_target, "msdfs:", 6)) {
1448 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
1452 if (ppreflist == NULL && preferral_count == NULL) {
1453 /* Early return for checking if this is a DFS link. */
1454 init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
1455 return NT_STATUS_OK;
1458 ok = parse_msdfs_symlink(mem_ctx,
1459 lp_msdfs_shuffle_referrals(SNUM(handle->conn)),
1465 init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
1466 status = NT_STATUS_OK;
1468 status = NT_STATUS_NO_MEMORY;
1473 if (link_target != link_target_buf) {
1474 TALLOC_FREE(link_target);
1479 static struct vfs_fn_pointers ceph_fns = {
1480 /* Disk operations */
1482 .connect_fn = cephwrap_connect,
1483 .disconnect_fn = cephwrap_disconnect,
1484 .disk_free_fn = cephwrap_disk_free,
1485 .get_quota_fn = cephwrap_get_quota,
1486 .set_quota_fn = cephwrap_set_quota,
1487 .statvfs_fn = cephwrap_statvfs,
1488 .fs_capabilities_fn = cephwrap_fs_capabilities,
1490 /* Directory operations */
1492 .fdopendir_fn = cephwrap_fdopendir,
1493 .readdir_fn = cephwrap_readdir,
1494 .seekdir_fn = cephwrap_seekdir,
1495 .telldir_fn = cephwrap_telldir,
1496 .rewind_dir_fn = cephwrap_rewinddir,
1497 .mkdirat_fn = cephwrap_mkdirat,
1498 .closedir_fn = cephwrap_closedir,
1500 /* File operations */
1502 .create_dfs_pathat_fn = cephwrap_create_dfs_pathat,
1503 .read_dfs_pathat_fn = cephwrap_read_dfs_pathat,
1504 .openat_fn = cephwrap_openat,
1505 .close_fn = cephwrap_close,
1506 .pread_fn = cephwrap_pread,
1507 .pread_send_fn = cephwrap_pread_send,
1508 .pread_recv_fn = cephwrap_pread_recv,
1509 .pwrite_fn = cephwrap_pwrite,
1510 .pwrite_send_fn = cephwrap_pwrite_send,
1511 .pwrite_recv_fn = cephwrap_pwrite_recv,
1512 .lseek_fn = cephwrap_lseek,
1513 .sendfile_fn = cephwrap_sendfile,
1514 .recvfile_fn = cephwrap_recvfile,
1515 .renameat_fn = cephwrap_renameat,
1516 .fsync_send_fn = cephwrap_fsync_send,
1517 .fsync_recv_fn = cephwrap_fsync_recv,
1518 .stat_fn = cephwrap_stat,
1519 .fstat_fn = cephwrap_fstat,
1520 .lstat_fn = cephwrap_lstat,
1521 .unlinkat_fn = cephwrap_unlinkat,
1522 .chmod_fn = cephwrap_chmod,
1523 .fchmod_fn = cephwrap_fchmod,
1524 .fchown_fn = cephwrap_fchown,
1525 .lchown_fn = cephwrap_lchown,
1526 .chdir_fn = cephwrap_chdir,
1527 .getwd_fn = cephwrap_getwd,
1528 .ntimes_fn = cephwrap_ntimes,
1529 .ftruncate_fn = cephwrap_ftruncate,
1530 .fallocate_fn = cephwrap_fallocate,
1531 .lock_fn = cephwrap_lock,
1532 .kernel_flock_fn = cephwrap_kernel_flock,
1533 .fcntl_fn = cephwrap_fcntl,
1534 .linux_setlease_fn = cephwrap_linux_setlease,
1535 .getlock_fn = cephwrap_getlock,
1536 .symlinkat_fn = cephwrap_symlinkat,
1537 .readlinkat_fn = cephwrap_readlinkat,
1538 .linkat_fn = cephwrap_linkat,
1539 .mknodat_fn = cephwrap_mknodat,
1540 .realpath_fn = cephwrap_realpath,
1541 .chflags_fn = cephwrap_chflags,
1542 .get_real_filename_fn = cephwrap_get_real_filename,
1543 .connectpath_fn = cephwrap_connectpath,
1545 /* EA operations. */
1546 .getxattr_fn = cephwrap_getxattr,
1547 .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
1548 .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
1549 .fgetxattr_fn = cephwrap_fgetxattr,
1550 .listxattr_fn = cephwrap_listxattr,
1551 .flistxattr_fn = cephwrap_flistxattr,
1552 .removexattr_fn = cephwrap_removexattr,
1553 .fremovexattr_fn = cephwrap_fremovexattr,
1554 .setxattr_fn = cephwrap_setxattr,
1555 .fsetxattr_fn = cephwrap_fsetxattr,
1557 /* Posix ACL Operations */
1558 .sys_acl_get_file_fn = posixacl_xattr_acl_get_file,
1559 .sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
1560 .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
1561 .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
1562 .sys_acl_set_file_fn = posixacl_xattr_acl_set_file,
1563 .sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
1564 .sys_acl_delete_def_file_fn = posixacl_xattr_acl_delete_def_file,
1566 /* aio operations */
1567 .aio_force_fn = cephwrap_aio_force,
1571 NTSTATUS vfs_ceph_init(TALLOC_CTX *ctx)
1573 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,