mirror of
https://github.com/samba-team/samba.git
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5235ffea59
Signed-off-by: Jeremy Allison <jra@samba.org> Reviewed-by: Noel Power <npower@samba.org>
1667 lines
43 KiB
C
1667 lines
43 KiB
C
/*
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Unix SMB/CIFS implementation.
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Wrap disk only vfs functions to sidestep dodgy compilers.
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Copyright (C) Tim Potter 1998
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Copyright (C) Jeremy Allison 2007
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Copyright (C) Brian Chrisman 2011 <bchrisman@gmail.com>
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Copyright (C) Richard Sharpe 2011 <realrichardsharpe@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* This VFS only works with the libceph.so user-space client. It is not needed
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* if you are using the kernel client or the FUSE client.
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*
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* Add the following smb.conf parameter to each share that will be hosted on
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* Ceph:
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*
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* vfs objects = ceph [any others you need go here]
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*/
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#include "includes.h"
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#include "smbd/smbd.h"
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#include "system/filesys.h"
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#include <dirent.h>
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#include <sys/statvfs.h>
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#include "cephfs/libcephfs.h"
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#include "smbprofile.h"
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#include "modules/posixacl_xattr.h"
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#include "lib/util/tevent_unix.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_VFS
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#ifndef LIBCEPHFS_VERSION
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#define LIBCEPHFS_VERSION(maj, min, extra) ((maj << 16) + (min << 8) + extra)
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#define LIBCEPHFS_VERSION_CODE LIBCEPHFS_VERSION(0, 0, 0)
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#endif
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/*
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* Use %llu whenever we have a 64bit unsigned int, and cast to (long long unsigned)
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*/
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#define llu(_var) ((long long unsigned)_var)
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/*
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* Note, libceph's return code model is to return -errno! So we have to convert
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* to what Samba expects, with is set errno to -return and return -1
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*/
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#define WRAP_RETURN(_res) \
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errno = 0; \
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if (_res < 0) { \
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errno = -_res; \
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return -1; \
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} \
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return _res \
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/*
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* We mount only one file system and then all shares are assumed to be in that.
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* FIXME: If we want to support more than one FS, then we have to deal with
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* this differently.
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*
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* So, cmount tells us if we have been this way before and whether
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* we need to mount ceph and cmount_cnt tells us how many times we have
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* connected
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*/
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static struct ceph_mount_info * cmount = NULL;
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static uint32_t cmount_cnt = 0;
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/* Check for NULL pointer parameters in cephwrap_* functions */
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/* We don't want to have NULL function pointers lying around. Someone
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is sure to try and execute them. These stubs are used to prevent
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this possibility. */
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static int cephwrap_connect(struct vfs_handle_struct *handle, const char *service, const char *user)
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{
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int ret;
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char buf[256];
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int snum = SNUM(handle->conn);
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const char *conf_file;
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const char *user_id;
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if (cmount) {
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handle->data = cmount; /* We have been here before */
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cmount_cnt++;
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return 0;
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}
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/* if config_file and/or user_id are NULL, ceph will use defaults */
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conf_file = lp_parm_const_string(snum, "ceph", "config_file", NULL);
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user_id = lp_parm_const_string(snum, "ceph", "user_id", NULL);
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DBG_DEBUG("[CEPH] calling: ceph_create\n");
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ret = ceph_create(&cmount, user_id);
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if (ret) {
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goto err_out;
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}
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DBG_DEBUG("[CEPH] calling: ceph_conf_read_file with %s\n",
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(conf_file == NULL ? "default path" : conf_file));
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ret = ceph_conf_read_file(cmount, conf_file);
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if (ret) {
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goto err_cm_release;
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}
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DBG_DEBUG("[CEPH] calling: ceph_conf_get\n");
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ret = ceph_conf_get(cmount, "log file", buf, sizeof(buf));
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if (ret < 0) {
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goto err_cm_release;
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}
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/* libcephfs disables POSIX ACL support by default, enable it... */
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ret = ceph_conf_set(cmount, "client_acl_type", "posix_acl");
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if (ret < 0) {
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goto err_cm_release;
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}
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/* tell libcephfs to perform local permission checks */
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ret = ceph_conf_set(cmount, "fuse_default_permissions", "false");
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if (ret < 0) {
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goto err_cm_release;
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}
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DBG_DEBUG("[CEPH] calling: ceph_mount\n");
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ret = ceph_mount(cmount, NULL);
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if (ret < 0) {
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goto err_cm_release;
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}
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/*
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* encode mount context/state into our vfs/connection holding structure
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* cmount is a ceph_mount_t*
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*/
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handle->data = cmount;
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cmount_cnt++;
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/*
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* Unless we have an async implementation of getxattrat turn this off.
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*/
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lp_do_parameter(SNUM(handle->conn), "smbd async dosmode", "false");
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return 0;
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err_cm_release:
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ceph_release(cmount);
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cmount = NULL;
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err_out:
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/*
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* Handle the error correctly. Ceph returns -errno.
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*/
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DBG_DEBUG("[CEPH] Error return: %s\n", strerror(-ret));
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WRAP_RETURN(ret);
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}
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static void cephwrap_disconnect(struct vfs_handle_struct *handle)
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{
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int ret;
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if (!cmount) {
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DBG_ERR("[CEPH] Error, ceph not mounted\n");
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return;
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}
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/* Should we unmount/shutdown? Only if the last disconnect? */
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if (--cmount_cnt) {
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DBG_DEBUG("[CEPH] Not shuting down CEPH because still more connections\n");
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return;
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}
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ret = ceph_unmount(cmount);
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if (ret < 0) {
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DBG_ERR("[CEPH] failed to unmount: %s\n", strerror(-ret));
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}
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ret = ceph_release(cmount);
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if (ret < 0) {
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DBG_ERR("[CEPH] failed to release: %s\n", strerror(-ret));
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}
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cmount = NULL; /* Make it safe */
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}
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/* Disk operations */
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static uint64_t cephwrap_disk_free(struct vfs_handle_struct *handle,
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const struct smb_filename *smb_fname,
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uint64_t *bsize,
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uint64_t *dfree,
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uint64_t *dsize)
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{
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struct statvfs statvfs_buf;
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int ret;
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if (!(ret = ceph_statfs(handle->data, smb_fname->base_name,
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&statvfs_buf))) {
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/*
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* Provide all the correct values.
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*/
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*bsize = statvfs_buf.f_bsize;
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*dfree = statvfs_buf.f_bavail;
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*dsize = statvfs_buf.f_blocks;
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DBG_DEBUG("[CEPH] bsize: %llu, dfree: %llu, dsize: %llu\n",
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llu(*bsize), llu(*dfree), llu(*dsize));
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return *dfree;
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} else {
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DBG_DEBUG("[CEPH] ceph_statfs returned %d\n", ret);
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WRAP_RETURN(ret);
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}
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}
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static int cephwrap_get_quota(struct vfs_handle_struct *handle,
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const struct smb_filename *smb_fname,
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enum SMB_QUOTA_TYPE qtype,
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unid_t id,
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SMB_DISK_QUOTA *qt)
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{
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/* libceph: Ceph does not implement this */
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#if 0
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/* was ifdef HAVE_SYS_QUOTAS */
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int ret;
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ret = ceph_get_quota(handle->conn->connectpath, qtype, id, qt);
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if (ret) {
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errno = -ret;
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ret = -1;
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}
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return ret;
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#else
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errno = ENOSYS;
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return -1;
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#endif
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}
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static int cephwrap_set_quota(struct vfs_handle_struct *handle, enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
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{
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/* libceph: Ceph does not implement this */
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#if 0
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/* was ifdef HAVE_SYS_QUOTAS */
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int ret;
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ret = ceph_set_quota(handle->conn->connectpath, qtype, id, qt);
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if (ret) {
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errno = -ret;
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ret = -1;
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}
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return ret;
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#else
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WRAP_RETURN(-ENOSYS);
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#endif
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}
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static int cephwrap_statvfs(struct vfs_handle_struct *handle,
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const struct smb_filename *smb_fname,
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vfs_statvfs_struct *statbuf)
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{
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struct statvfs statvfs_buf;
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int ret;
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ret = ceph_statfs(handle->data, smb_fname->base_name, &statvfs_buf);
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if (ret < 0) {
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WRAP_RETURN(ret);
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}
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statbuf->OptimalTransferSize = statvfs_buf.f_frsize;
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statbuf->BlockSize = statvfs_buf.f_bsize;
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statbuf->TotalBlocks = statvfs_buf.f_blocks;
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statbuf->BlocksAvail = statvfs_buf.f_bfree;
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statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
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statbuf->TotalFileNodes = statvfs_buf.f_files;
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statbuf->FreeFileNodes = statvfs_buf.f_ffree;
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statbuf->FsIdentifier = statvfs_buf.f_fsid;
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DBG_DEBUG("[CEPH] f_bsize: %ld, f_blocks: %ld, f_bfree: %ld, f_bavail: %ld\n",
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(long int)statvfs_buf.f_bsize, (long int)statvfs_buf.f_blocks,
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(long int)statvfs_buf.f_bfree, (long int)statvfs_buf.f_bavail);
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return ret;
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}
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static uint32_t cephwrap_fs_capabilities(struct vfs_handle_struct *handle,
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enum timestamp_set_resolution *p_ts_res)
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{
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uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
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*p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
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return caps;
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}
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/* Directory operations */
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static DIR *cephwrap_fdopendir(struct vfs_handle_struct *handle,
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struct files_struct *fsp,
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const char *mask,
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uint32_t attributes)
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{
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int ret = 0;
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struct ceph_dir_result *result;
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DBG_DEBUG("[CEPH] fdopendir(%p, %p)\n", handle, fsp);
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ret = ceph_opendir(handle->data, fsp->fsp_name->base_name, &result);
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if (ret < 0) {
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result = NULL;
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errno = -ret; /* We return result which is NULL in this case */
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}
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DBG_DEBUG("[CEPH] fdopendir(...) = %d\n", ret);
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return (DIR *) result;
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}
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static struct dirent *cephwrap_readdir(struct vfs_handle_struct *handle,
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struct files_struct *dirfsp,
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DIR *dirp,
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SMB_STRUCT_STAT *sbuf)
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{
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struct dirent *result;
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DBG_DEBUG("[CEPH] readdir(%p, %p)\n", handle, dirp);
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result = ceph_readdir(handle->data, (struct ceph_dir_result *) dirp);
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DBG_DEBUG("[CEPH] readdir(...) = %p\n", result);
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/* Default Posix readdir() does not give us stat info.
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* Set to invalid to indicate we didn't return this info. */
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if (sbuf)
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SET_STAT_INVALID(*sbuf);
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return result;
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}
|
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|
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static void cephwrap_seekdir(struct vfs_handle_struct *handle, DIR *dirp, long offset)
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{
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DBG_DEBUG("[CEPH] seekdir(%p, %p, %ld)\n", handle, dirp, offset);
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ceph_seekdir(handle->data, (struct ceph_dir_result *) dirp, offset);
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}
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static long cephwrap_telldir(struct vfs_handle_struct *handle, DIR *dirp)
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{
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long ret;
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DBG_DEBUG("[CEPH] telldir(%p, %p)\n", handle, dirp);
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ret = ceph_telldir(handle->data, (struct ceph_dir_result *) dirp);
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DBG_DEBUG("[CEPH] telldir(...) = %ld\n", ret);
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WRAP_RETURN(ret);
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}
|
|
|
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static void cephwrap_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
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{
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DBG_DEBUG("[CEPH] rewinddir(%p, %p)\n", handle, dirp);
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ceph_rewinddir(handle->data, (struct ceph_dir_result *) dirp);
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}
|
|
|
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static int cephwrap_mkdirat(struct vfs_handle_struct *handle,
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files_struct *dirfsp,
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const struct smb_filename *smb_fname,
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mode_t mode)
|
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{
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struct smb_filename *full_fname = NULL;
|
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int result;
|
|
|
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full_fname = full_path_from_dirfsp_atname(talloc_tos(),
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dirfsp,
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smb_fname);
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if (full_fname == NULL) {
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return -1;
|
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}
|
|
|
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DBG_DEBUG("[CEPH] mkdir(%p, %s)\n",
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handle, smb_fname_str_dbg(full_fname));
|
|
|
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result = ceph_mkdir(handle->data, full_fname->base_name, mode);
|
|
|
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TALLOC_FREE(full_fname);
|
|
|
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return WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_closedir(struct vfs_handle_struct *handle, DIR *dirp)
|
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{
|
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int result;
|
|
|
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DBG_DEBUG("[CEPH] closedir(%p, %p)\n", handle, dirp);
|
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result = ceph_closedir(handle->data, (struct ceph_dir_result *) dirp);
|
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DBG_DEBUG("[CEPH] closedir(...) = %d\n", result);
|
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WRAP_RETURN(result);
|
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}
|
|
|
|
/* File operations */
|
|
|
|
static int cephwrap_openat(struct vfs_handle_struct *handle,
|
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const struct files_struct *dirfsp,
|
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const struct smb_filename *smb_fname,
|
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files_struct *fsp,
|
|
int flags,
|
|
mode_t mode)
|
|
{
|
|
bool have_opath = false;
|
|
bool became_root = false;
|
|
int result = -ENOENT;
|
|
|
|
/*
|
|
* cephfs API doesn't have ceph_openat(), so for now assert this.
|
|
*/
|
|
SMB_ASSERT(fsp_get_pathref_fd(dirfsp) == AT_FDCWD);
|
|
|
|
DBG_DEBUG("[CEPH] openat(%p, %s, %p, %d, %d)\n", handle,
|
|
smb_fname_str_dbg(smb_fname), fsp, flags, mode);
|
|
|
|
if (smb_fname->stream_name) {
|
|
goto out;
|
|
}
|
|
|
|
#ifdef O_PATH
|
|
have_opath = true;
|
|
if (fsp->fsp_flags.is_pathref) {
|
|
flags |= O_PATH;
|
|
}
|
|
#endif
|
|
|
|
if (fsp->fsp_flags.is_pathref && !have_opath) {
|
|
become_root();
|
|
became_root = true;
|
|
}
|
|
|
|
result = ceph_open(handle->data, smb_fname->base_name, flags, mode);
|
|
|
|
if (became_root) {
|
|
unbecome_root();
|
|
}
|
|
|
|
out:
|
|
fsp->fsp_flags.have_proc_fds = false;
|
|
DBG_DEBUG("[CEPH] open(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_close(struct vfs_handle_struct *handle, files_struct *fsp)
|
|
{
|
|
int result;
|
|
|
|
DBG_DEBUG("[CEPH] close(%p, %p)\n", handle, fsp);
|
|
result = ceph_close(handle->data, fsp_get_io_fd(fsp));
|
|
DBG_DEBUG("[CEPH] close(...) = %d\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;
|
|
|
|
DBG_DEBUG("[CEPH] pread(%p, %p, %p, %llu, %llu)\n", handle, fsp, data, llu(n), llu(offset));
|
|
|
|
result = ceph_read(handle->data, fsp_get_io_fd(fsp), data, n, offset);
|
|
DBG_DEBUG("[CEPH] pread(...) = %llu\n", llu(result));
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
struct cephwrap_pread_state {
|
|
ssize_t bytes_read;
|
|
struct vfs_aio_state vfs_aio_state;
|
|
};
|
|
|
|
/*
|
|
* Fake up an async ceph read by calling the synchronous API.
|
|
*/
|
|
static struct tevent_req *cephwrap_pread_send(struct vfs_handle_struct *handle,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
struct files_struct *fsp,
|
|
void *data,
|
|
size_t n, off_t offset)
|
|
{
|
|
struct tevent_req *req = NULL;
|
|
struct cephwrap_pread_state *state = NULL;
|
|
int ret = -1;
|
|
|
|
DBG_DEBUG("[CEPH] %s\n", __func__);
|
|
req = tevent_req_create(mem_ctx, &state, struct cephwrap_pread_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
ret = ceph_read(handle->data, fsp_get_io_fd(fsp), data, n, offset);
|
|
if (ret < 0) {
|
|
/* ceph returns -errno on error. */
|
|
tevent_req_error(req, -ret);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
state->bytes_read = ret;
|
|
tevent_req_done(req);
|
|
/* Return and schedule the completion of the call. */
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
static ssize_t cephwrap_pread_recv(struct tevent_req *req,
|
|
struct vfs_aio_state *vfs_aio_state)
|
|
{
|
|
struct cephwrap_pread_state *state =
|
|
tevent_req_data(req, struct cephwrap_pread_state);
|
|
|
|
DBG_DEBUG("[CEPH] %s\n", __func__);
|
|
if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
|
|
return -1;
|
|
}
|
|
*vfs_aio_state = state->vfs_aio_state;
|
|
return state->bytes_read;
|
|
}
|
|
|
|
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;
|
|
|
|
DBG_DEBUG("[CEPH] pwrite(%p, %p, %p, %llu, %llu)\n", handle, fsp, data, llu(n), llu(offset));
|
|
result = ceph_write(handle->data, fsp_get_io_fd(fsp), data, n, offset);
|
|
DBG_DEBUG("[CEPH] pwrite(...) = %llu\n", llu(result));
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
struct cephwrap_pwrite_state {
|
|
ssize_t bytes_written;
|
|
struct vfs_aio_state vfs_aio_state;
|
|
};
|
|
|
|
/*
|
|
* Fake up an async ceph write by calling the synchronous API.
|
|
*/
|
|
static struct tevent_req *cephwrap_pwrite_send(struct vfs_handle_struct *handle,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
struct files_struct *fsp,
|
|
const void *data,
|
|
size_t n, off_t offset)
|
|
{
|
|
struct tevent_req *req = NULL;
|
|
struct cephwrap_pwrite_state *state = NULL;
|
|
int ret = -1;
|
|
|
|
DBG_DEBUG("[CEPH] %s\n", __func__);
|
|
req = tevent_req_create(mem_ctx, &state, struct cephwrap_pwrite_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
ret = ceph_write(handle->data, fsp_get_io_fd(fsp), data, n, offset);
|
|
if (ret < 0) {
|
|
/* ceph returns -errno on error. */
|
|
tevent_req_error(req, -ret);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
state->bytes_written = ret;
|
|
tevent_req_done(req);
|
|
/* Return and schedule the completion of the call. */
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
static ssize_t cephwrap_pwrite_recv(struct tevent_req *req,
|
|
struct vfs_aio_state *vfs_aio_state)
|
|
{
|
|
struct cephwrap_pwrite_state *state =
|
|
tevent_req_data(req, struct cephwrap_pwrite_state);
|
|
|
|
DBG_DEBUG("[CEPH] %s\n", __func__);
|
|
if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
|
|
return -1;
|
|
}
|
|
*vfs_aio_state = state->vfs_aio_state;
|
|
return state->bytes_written;
|
|
}
|
|
|
|
static off_t cephwrap_lseek(struct vfs_handle_struct *handle, files_struct *fsp, off_t offset, int whence)
|
|
{
|
|
off_t result = 0;
|
|
|
|
DBG_DEBUG("[CEPH] cephwrap_lseek\n");
|
|
result = ceph_lseek(handle->data, fsp_get_io_fd(fsp), 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.
|
|
*/
|
|
DBG_DEBUG("[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.
|
|
*/
|
|
DBG_DEBUG("[CEPH] cephwrap_recvfile\n");
|
|
errno=ENOTSUP;
|
|
return -1;
|
|
}
|
|
|
|
static int cephwrap_renameat(struct vfs_handle_struct *handle,
|
|
files_struct *srcfsp,
|
|
const struct smb_filename *smb_fname_src,
|
|
files_struct *dstfsp,
|
|
const struct smb_filename *smb_fname_dst)
|
|
{
|
|
struct smb_filename *full_fname_src = NULL;
|
|
struct smb_filename *full_fname_dst = NULL;
|
|
int result = -1;
|
|
|
|
DBG_DEBUG("[CEPH] cephwrap_renameat\n");
|
|
if (smb_fname_src->stream_name || smb_fname_dst->stream_name) {
|
|
errno = ENOENT;
|
|
return result;
|
|
}
|
|
|
|
full_fname_src = full_path_from_dirfsp_atname(talloc_tos(),
|
|
srcfsp,
|
|
smb_fname_src);
|
|
if (full_fname_src == NULL) {
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
full_fname_dst = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dstfsp,
|
|
smb_fname_dst);
|
|
if (full_fname_dst == NULL) {
|
|
TALLOC_FREE(full_fname_src);
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
|
|
result = ceph_rename(handle->data,
|
|
full_fname_src->base_name,
|
|
full_fname_dst->base_name);
|
|
|
|
TALLOC_FREE(full_fname_src);
|
|
TALLOC_FREE(full_fname_dst);
|
|
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
/*
|
|
* Fake up an async ceph fsync by calling the synchronous API.
|
|
*/
|
|
|
|
static struct tevent_req *cephwrap_fsync_send(struct vfs_handle_struct *handle,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
files_struct *fsp)
|
|
{
|
|
struct tevent_req *req = NULL;
|
|
struct vfs_aio_state *state = NULL;
|
|
int ret = -1;
|
|
|
|
DBG_DEBUG("[CEPH] cephwrap_fsync_send\n");
|
|
|
|
req = tevent_req_create(mem_ctx, &state, struct vfs_aio_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
/* Make sync call. */
|
|
ret = ceph_fsync(handle->data, fsp_get_io_fd(fsp), false);
|
|
|
|
if (ret != 0) {
|
|
/* ceph_fsync returns -errno on error. */
|
|
tevent_req_error(req, -ret);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
/* Mark it as done. */
|
|
tevent_req_done(req);
|
|
/* Return and schedule the completion of the call. */
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
static int cephwrap_fsync_recv(struct tevent_req *req,
|
|
struct vfs_aio_state *vfs_aio_state)
|
|
{
|
|
struct vfs_aio_state *state =
|
|
tevent_req_data(req, struct vfs_aio_state);
|
|
|
|
DBG_DEBUG("[CEPH] cephwrap_fsync_recv\n");
|
|
|
|
if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
|
|
return -1;
|
|
}
|
|
*vfs_aio_state = *state;
|
|
return 0;
|
|
}
|
|
|
|
#define SAMBA_STATX_ATTR_MASK (CEPH_STATX_BASIC_STATS|CEPH_STATX_BTIME)
|
|
|
|
static void init_stat_ex_from_ceph_statx(struct stat_ex *dst, const struct ceph_statx *stx)
|
|
{
|
|
DBG_DEBUG("[CEPH]\tstx = {dev = %llx, ino = %llu, mode = 0x%x, "
|
|
"nlink = %llu, uid = %d, gid = %d, rdev = %llx, size = %llu, "
|
|
"blksize = %llu, blocks = %llu, atime = %llu, mtime = %llu, "
|
|
"ctime = %llu, btime = %llu}\n",
|
|
llu(stx->stx_dev), llu(stx->stx_ino), stx->stx_mode,
|
|
llu(stx->stx_nlink), stx->stx_uid, stx->stx_gid,
|
|
llu(stx->stx_rdev), llu(stx->stx_size), llu(stx->stx_blksize),
|
|
llu(stx->stx_blocks), llu(stx->stx_atime.tv_sec),
|
|
llu(stx->stx_mtime.tv_sec), llu(stx->stx_ctime.tv_sec),
|
|
llu(stx->stx_btime.tv_sec));
|
|
|
|
if ((stx->stx_mask & SAMBA_STATX_ATTR_MASK) != SAMBA_STATX_ATTR_MASK) {
|
|
DBG_WARNING("%s: stx->stx_mask is incorrect (wanted %x, got %x)",
|
|
__func__, SAMBA_STATX_ATTR_MASK, stx->stx_mask);
|
|
}
|
|
|
|
dst->st_ex_dev = stx->stx_dev;
|
|
dst->st_ex_rdev = stx->stx_rdev;
|
|
dst->st_ex_ino = stx->stx_ino;
|
|
dst->st_ex_mode = stx->stx_mode;
|
|
dst->st_ex_uid = stx->stx_uid;
|
|
dst->st_ex_gid = stx->stx_gid;
|
|
dst->st_ex_size = stx->stx_size;
|
|
dst->st_ex_nlink = stx->stx_nlink;
|
|
dst->st_ex_atime = stx->stx_atime;
|
|
dst->st_ex_btime = stx->stx_btime;
|
|
dst->st_ex_ctime = stx->stx_ctime;
|
|
dst->st_ex_mtime = stx->stx_mtime;
|
|
dst->st_ex_itime = dst->st_ex_btime;
|
|
dst->st_ex_iflags = ST_EX_IFLAG_CALCULATED_ITIME;
|
|
dst->st_ex_blksize = stx->stx_blksize;
|
|
dst->st_ex_blocks = stx->stx_blocks;
|
|
dst->st_ex_file_id = dst->st_ex_ino;
|
|
dst->st_ex_iflags |= ST_EX_IFLAG_CALCULATED_FILE_ID;
|
|
}
|
|
|
|
static int cephwrap_stat(struct vfs_handle_struct *handle,
|
|
struct smb_filename *smb_fname)
|
|
{
|
|
int result = -1;
|
|
struct ceph_statx stx;
|
|
|
|
DBG_DEBUG("[CEPH] stat(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname));
|
|
|
|
if (smb_fname->stream_name) {
|
|
errno = ENOENT;
|
|
return result;
|
|
}
|
|
|
|
result = ceph_statx(handle->data, smb_fname->base_name, &stx,
|
|
SAMBA_STATX_ATTR_MASK, 0);
|
|
DBG_DEBUG("[CEPH] statx(...) = %d\n", result);
|
|
if (result < 0) {
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
|
|
DBG_DEBUG("[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 ceph_statx stx;
|
|
|
|
DBG_DEBUG("[CEPH] fstat(%p, %d)\n", handle, fsp_get_io_fd(fsp));
|
|
result = ceph_fstatx(handle->data, fsp_get_io_fd(fsp), &stx,
|
|
SAMBA_STATX_ATTR_MASK, 0);
|
|
DBG_DEBUG("[CEPH] fstat(...) = %d\n", result);
|
|
if (result < 0) {
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
init_stat_ex_from_ceph_statx(sbuf, &stx);
|
|
DBG_DEBUG("[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 ceph_statx stx;
|
|
|
|
DBG_DEBUG("[CEPH] lstat(%p, %s)\n", handle, smb_fname_str_dbg(smb_fname));
|
|
|
|
if (smb_fname->stream_name) {
|
|
errno = ENOENT;
|
|
return result;
|
|
}
|
|
|
|
result = ceph_statx(handle->data, smb_fname->base_name, &stx,
|
|
SAMBA_STATX_ATTR_MASK, AT_SYMLINK_NOFOLLOW);
|
|
DBG_DEBUG("[CEPH] lstat(...) = %d\n", result);
|
|
if (result < 0) {
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
|
|
return result;
|
|
}
|
|
|
|
static int cephwrap_fntimes(struct vfs_handle_struct *handle,
|
|
files_struct *fsp,
|
|
struct smb_file_time *ft)
|
|
{
|
|
struct ceph_statx stx = { 0 };
|
|
int result;
|
|
int mask = 0;
|
|
|
|
if (!is_omit_timespec(&ft->atime)) {
|
|
stx.stx_atime = ft->atime;
|
|
mask |= CEPH_SETATTR_ATIME;
|
|
}
|
|
if (!is_omit_timespec(&ft->mtime)) {
|
|
stx.stx_mtime = ft->mtime;
|
|
mask |= CEPH_SETATTR_MTIME;
|
|
}
|
|
if (!is_omit_timespec(&ft->create_time)) {
|
|
stx.stx_btime = ft->create_time;
|
|
mask |= CEPH_SETATTR_BTIME;
|
|
}
|
|
|
|
if (!mask) {
|
|
return 0;
|
|
}
|
|
|
|
if (!fsp->fsp_flags.is_pathref) {
|
|
/*
|
|
* We can use an io_fd to set xattrs.
|
|
*/
|
|
result = ceph_fsetattrx(handle->data,
|
|
fsp_get_io_fd(fsp),
|
|
&stx,
|
|
mask);
|
|
} else {
|
|
/*
|
|
* This is no longer a handle based call.
|
|
*/
|
|
result = ceph_setattrx(handle->data,
|
|
fsp->fsp_name->base_name,
|
|
&stx,
|
|
mask,
|
|
0);
|
|
}
|
|
|
|
DBG_DEBUG("[CEPH] ntimes(%p, %s, {%ld, %ld, %ld, %ld}) = %d\n",
|
|
handle, fsp_str_dbg(fsp), ft->mtime.tv_sec, ft->atime.tv_sec,
|
|
ft->ctime.tv_sec, ft->create_time.tv_sec, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
static int cephwrap_unlinkat(struct vfs_handle_struct *handle,
|
|
struct files_struct *dirfsp,
|
|
const struct smb_filename *smb_fname,
|
|
int flags)
|
|
{
|
|
struct smb_filename *full_fname = NULL;
|
|
int result = -1;
|
|
|
|
DBG_DEBUG("[CEPH] unlink(%p, %s)\n",
|
|
handle,
|
|
smb_fname_str_dbg(smb_fname));
|
|
|
|
if (smb_fname->stream_name) {
|
|
errno = ENOENT;
|
|
return result;
|
|
}
|
|
|
|
full_fname = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dirfsp,
|
|
smb_fname);
|
|
if (full_fname == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
if (flags & AT_REMOVEDIR) {
|
|
result = ceph_rmdir(handle->data, full_fname->base_name);
|
|
} else {
|
|
result = ceph_unlink(handle->data, full_fname->base_name);
|
|
}
|
|
TALLOC_FREE(full_fname);
|
|
DBG_DEBUG("[CEPH] unlink(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_fchmod(struct vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
|
|
{
|
|
int result;
|
|
|
|
DBG_DEBUG("[CEPH] fchmod(%p, %p, %d)\n", handle, fsp, mode);
|
|
if (!fsp->fsp_flags.is_pathref) {
|
|
/*
|
|
* We can use an io_fd to remove xattrs.
|
|
*/
|
|
result = ceph_fchmod(handle->data, fsp_get_io_fd(fsp), mode);
|
|
} else {
|
|
/*
|
|
* This is no longer a handle based call.
|
|
*/
|
|
result = ceph_chmod(handle->data,
|
|
fsp->fsp_name->base_name,
|
|
mode);
|
|
}
|
|
DBG_DEBUG("[CEPH] fchmod(...) = %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;
|
|
|
|
DBG_DEBUG("[CEPH] fchown(%p, %p, %d, %d)\n", handle, fsp, uid, gid);
|
|
result = ceph_fchown(handle->data, fsp_get_io_fd(fsp), uid, gid);
|
|
DBG_DEBUG("[CEPH] fchown(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_lchown(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname,
|
|
uid_t uid,
|
|
gid_t gid)
|
|
{
|
|
int result;
|
|
DBG_DEBUG("[CEPH] lchown(%p, %s, %d, %d)\n", handle, smb_fname->base_name, uid, gid);
|
|
result = ceph_lchown(handle->data, smb_fname->base_name, uid, gid);
|
|
DBG_DEBUG("[CEPH] lchown(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_chdir(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname)
|
|
{
|
|
int result = -1;
|
|
DBG_DEBUG("[CEPH] chdir(%p, %s)\n", handle, smb_fname->base_name);
|
|
result = ceph_chdir(handle->data, smb_fname->base_name);
|
|
DBG_DEBUG("[CEPH] chdir(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static struct smb_filename *cephwrap_getwd(struct vfs_handle_struct *handle,
|
|
TALLOC_CTX *ctx)
|
|
{
|
|
const char *cwd = ceph_getcwd(handle->data);
|
|
DBG_DEBUG("[CEPH] getwd(%p) = %s\n", handle, cwd);
|
|
return synthetic_smb_fname(ctx,
|
|
cwd,
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
0);
|
|
}
|
|
|
|
static int strict_allocate_ftruncate(struct vfs_handle_struct *handle, files_struct *fsp, off_t len)
|
|
{
|
|
off_t space_to_write;
|
|
int result;
|
|
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) {
|
|
result = ceph_ftruncate(handle->data, fsp_get_io_fd(fsp), len);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
space_to_write = len - pst->st_ex_size;
|
|
result = ceph_fallocate(handle->data, fsp_get_io_fd(fsp), 0, pst->st_ex_size,
|
|
space_to_write);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_ftruncate(struct vfs_handle_struct *handle, files_struct *fsp, off_t len)
|
|
{
|
|
int result = -1;
|
|
|
|
DBG_DEBUG("[CEPH] ftruncate(%p, %p, %llu\n", handle, fsp, llu(len));
|
|
|
|
if (lp_strict_allocate(SNUM(fsp->conn))) {
|
|
return strict_allocate_ftruncate(handle, fsp, len);
|
|
}
|
|
|
|
result = ceph_ftruncate(handle->data, fsp_get_io_fd(fsp), len);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_fallocate(struct vfs_handle_struct *handle,
|
|
struct files_struct *fsp,
|
|
uint32_t mode,
|
|
off_t offset,
|
|
off_t len)
|
|
{
|
|
int result;
|
|
|
|
DBG_DEBUG("[CEPH] fallocate(%p, %p, %u, %llu, %llu\n",
|
|
handle, fsp, mode, llu(offset), llu(len));
|
|
/* unsupported mode flags are rejected by libcephfs */
|
|
result = ceph_fallocate(handle->data, fsp_get_io_fd(fsp), mode, offset, len);
|
|
DBG_DEBUG("[CEPH] fallocate(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static bool cephwrap_lock(struct vfs_handle_struct *handle, files_struct *fsp, int op, off_t offset, off_t count, int type)
|
|
{
|
|
DBG_DEBUG("[CEPH] lock\n");
|
|
return true;
|
|
}
|
|
|
|
static int cephwrap_kernel_flock(struct vfs_handle_struct *handle,
|
|
files_struct *fsp,
|
|
uint32_t share_access,
|
|
uint32_t access_mask)
|
|
{
|
|
DBG_ERR("[CEPH] flock unsupported! Consider setting "
|
|
"\"kernel share modes = no\"\n");
|
|
|
|
errno = ENOSYS;
|
|
return -1;
|
|
}
|
|
|
|
static int cephwrap_fcntl(vfs_handle_struct *handle,
|
|
files_struct *fsp, int cmd, va_list cmd_arg)
|
|
{
|
|
/*
|
|
* SMB_VFS_FCNTL() is currently only called by vfs_set_blocking() to
|
|
* clear O_NONBLOCK, etc for LOCK_MAND and FIFOs. Ignore it.
|
|
*/
|
|
if (cmd == F_GETFL) {
|
|
return 0;
|
|
} else if (cmd == F_SETFL) {
|
|
va_list dup_cmd_arg;
|
|
int opt;
|
|
|
|
va_copy(dup_cmd_arg, cmd_arg);
|
|
opt = va_arg(dup_cmd_arg, int);
|
|
va_end(dup_cmd_arg);
|
|
if (opt == 0) {
|
|
return 0;
|
|
}
|
|
DBG_ERR("unexpected fcntl SETFL(%d)\n", opt);
|
|
goto err_out;
|
|
}
|
|
DBG_ERR("unexpected fcntl: %d\n", cmd);
|
|
err_out:
|
|
errno = EINVAL;
|
|
return -1;
|
|
}
|
|
|
|
static bool cephwrap_getlock(struct vfs_handle_struct *handle, files_struct *fsp, off_t *poffset, off_t *pcount, int *ptype, pid_t *ppid)
|
|
{
|
|
DBG_DEBUG("[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;
|
|
|
|
DBG_DEBUG("[CEPH] linux_setlease\n");
|
|
errno = ENOSYS;
|
|
return result;
|
|
}
|
|
|
|
static int cephwrap_symlinkat(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *link_target,
|
|
struct files_struct *dirfsp,
|
|
const struct smb_filename *new_smb_fname)
|
|
{
|
|
struct smb_filename *full_fname = NULL;
|
|
int result = -1;
|
|
|
|
full_fname = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dirfsp,
|
|
new_smb_fname);
|
|
if (full_fname == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
DBG_DEBUG("[CEPH] symlink(%p, %s, %s)\n", handle,
|
|
link_target->base_name,
|
|
full_fname->base_name);
|
|
|
|
result = ceph_symlink(handle->data,
|
|
link_target->base_name,
|
|
full_fname->base_name);
|
|
TALLOC_FREE(full_fname);
|
|
DBG_DEBUG("[CEPH] symlink(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_readlinkat(struct vfs_handle_struct *handle,
|
|
const struct files_struct *dirfsp,
|
|
const struct smb_filename *smb_fname,
|
|
char *buf,
|
|
size_t bufsiz)
|
|
{
|
|
struct smb_filename *full_fname = NULL;
|
|
int result = -1;
|
|
|
|
full_fname = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dirfsp,
|
|
smb_fname);
|
|
if (full_fname == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
DBG_DEBUG("[CEPH] readlink(%p, %s, %p, %llu)\n", handle,
|
|
full_fname->base_name, buf, llu(bufsiz));
|
|
|
|
result = ceph_readlink(handle->data, full_fname->base_name, buf, bufsiz);
|
|
TALLOC_FREE(full_fname);
|
|
DBG_DEBUG("[CEPH] readlink(...) = %d\n", result);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_linkat(struct vfs_handle_struct *handle,
|
|
files_struct *srcfsp,
|
|
const struct smb_filename *old_smb_fname,
|
|
files_struct *dstfsp,
|
|
const struct smb_filename *new_smb_fname,
|
|
int flags)
|
|
{
|
|
struct smb_filename *full_fname_old = NULL;
|
|
struct smb_filename *full_fname_new = NULL;
|
|
int result = -1;
|
|
|
|
full_fname_old = full_path_from_dirfsp_atname(talloc_tos(),
|
|
srcfsp,
|
|
old_smb_fname);
|
|
if (full_fname_old == NULL) {
|
|
return -1;
|
|
}
|
|
full_fname_new = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dstfsp,
|
|
new_smb_fname);
|
|
if (full_fname_new == NULL) {
|
|
TALLOC_FREE(full_fname_old);
|
|
return -1;
|
|
}
|
|
|
|
DBG_DEBUG("[CEPH] link(%p, %s, %s)\n", handle,
|
|
full_fname_old->base_name,
|
|
full_fname_new->base_name);
|
|
|
|
result = ceph_link(handle->data,
|
|
full_fname_old->base_name,
|
|
full_fname_new->base_name);
|
|
DBG_DEBUG("[CEPH] link(...) = %d\n", result);
|
|
TALLOC_FREE(full_fname_old);
|
|
TALLOC_FREE(full_fname_new);
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
static int cephwrap_mknodat(struct vfs_handle_struct *handle,
|
|
files_struct *dirfsp,
|
|
const struct smb_filename *smb_fname,
|
|
mode_t mode,
|
|
SMB_DEV_T dev)
|
|
{
|
|
struct smb_filename *full_fname = NULL;
|
|
int result = -1;
|
|
|
|
full_fname = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dirfsp,
|
|
smb_fname);
|
|
if (full_fname == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
DBG_DEBUG("[CEPH] mknodat(%p, %s)\n", handle, full_fname->base_name);
|
|
result = ceph_mknod(handle->data, full_fname->base_name, mode, dev);
|
|
DBG_DEBUG("[CEPH] mknodat(...) = %d\n", result);
|
|
|
|
TALLOC_FREE(full_fname);
|
|
|
|
WRAP_RETURN(result);
|
|
}
|
|
|
|
/*
|
|
* This is a simple version of real-path ... a better version is needed to
|
|
* ask libceph about symbolic links.
|
|
*/
|
|
static struct smb_filename *cephwrap_realpath(struct vfs_handle_struct *handle,
|
|
TALLOC_CTX *ctx,
|
|
const struct smb_filename *smb_fname)
|
|
{
|
|
char *result = NULL;
|
|
const char *path = smb_fname->base_name;
|
|
size_t len = strlen(path);
|
|
struct smb_filename *result_fname = NULL;
|
|
int r = -1;
|
|
|
|
if (len && (path[0] == '/')) {
|
|
r = asprintf(&result, "%s", path);
|
|
} else if ((len >= 2) && (path[0] == '.') && (path[1] == '/')) {
|
|
if (len == 2) {
|
|
r = asprintf(&result, "%s",
|
|
handle->conn->cwd_fsp->fsp_name->base_name);
|
|
} else {
|
|
r = asprintf(&result, "%s/%s",
|
|
handle->conn->cwd_fsp->fsp_name->base_name, &path[2]);
|
|
}
|
|
} else {
|
|
r = asprintf(&result, "%s/%s",
|
|
handle->conn->cwd_fsp->fsp_name->base_name, path);
|
|
}
|
|
|
|
if (r < 0) {
|
|
return NULL;
|
|
}
|
|
|
|
DBG_DEBUG("[CEPH] realpath(%p, %s) = %s\n", handle, path, result);
|
|
result_fname = synthetic_smb_fname(ctx,
|
|
result,
|
|
NULL,
|
|
NULL,
|
|
0,
|
|
0);
|
|
SAFE_FREE(result);
|
|
return result_fname;
|
|
}
|
|
|
|
static int cephwrap_chflags(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname,
|
|
unsigned int flags)
|
|
{
|
|
errno = ENOSYS;
|
|
return -1;
|
|
}
|
|
|
|
static int cephwrap_get_real_filename(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *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 struct smb_filename *smb_fname)
|
|
{
|
|
return handle->conn->connectpath;
|
|
}
|
|
|
|
/****************************************************************
|
|
Extended attribute operations.
|
|
*****************************************************************/
|
|
|
|
static ssize_t cephwrap_getxattr(struct vfs_handle_struct *handle,
|
|
const struct smb_filename *smb_fname,
|
|
const char *name,
|
|
void *value,
|
|
size_t size)
|
|
{
|
|
int ret;
|
|
DBG_DEBUG("[CEPH] getxattr(%p, %s, %s, %p, %llu)\n", handle,
|
|
smb_fname->base_name, name, value, llu(size));
|
|
ret = ceph_getxattr(handle->data,
|
|
smb_fname->base_name, name, value, size);
|
|
DBG_DEBUG("[CEPH] getxattr(...) = %d\n", ret);
|
|
if (ret < 0) {
|
|
WRAP_RETURN(ret);
|
|
}
|
|
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)
|
|
{
|
|
int ret;
|
|
DBG_DEBUG("[CEPH] fgetxattr(%p, %p, %s, %p, %llu)\n", handle, fsp, name, value, llu(size));
|
|
ret = ceph_fgetxattr(handle->data, fsp_get_io_fd(fsp), name, value, size);
|
|
DBG_DEBUG("[CEPH] fgetxattr(...) = %d\n", ret);
|
|
if (ret < 0) {
|
|
WRAP_RETURN(ret);
|
|
}
|
|
return (ssize_t)ret;
|
|
}
|
|
|
|
static ssize_t cephwrap_flistxattr(struct vfs_handle_struct *handle, struct files_struct *fsp, char *list, size_t size)
|
|
{
|
|
int ret;
|
|
DBG_DEBUG("[CEPH] flistxattr(%p, %p, %p, %llu)\n",
|
|
handle, fsp, list, llu(size));
|
|
if (!fsp->fsp_flags.is_pathref) {
|
|
/*
|
|
* We can use an io_fd to list xattrs.
|
|
*/
|
|
ret = ceph_flistxattr(handle->data,
|
|
fsp_get_io_fd(fsp),
|
|
list,
|
|
size);
|
|
} else {
|
|
/*
|
|
* This is no longer a handle based call.
|
|
*/
|
|
ret = ceph_listxattr(handle->data,
|
|
fsp->fsp_name->base_name,
|
|
list,
|
|
size);
|
|
}
|
|
DBG_DEBUG("[CEPH] flistxattr(...) = %d\n", ret);
|
|
if (ret < 0) {
|
|
WRAP_RETURN(ret);
|
|
}
|
|
return (ssize_t)ret;
|
|
}
|
|
|
|
static int cephwrap_fremovexattr(struct vfs_handle_struct *handle, struct files_struct *fsp, const char *name)
|
|
{
|
|
int ret;
|
|
DBG_DEBUG("[CEPH] fremovexattr(%p, %p, %s)\n", handle, fsp, name);
|
|
if (!fsp->fsp_flags.is_pathref) {
|
|
/*
|
|
* We can use an io_fd to remove xattrs.
|
|
*/
|
|
ret = ceph_fremovexattr(handle->data, fsp_get_io_fd(fsp), name);
|
|
} else {
|
|
/*
|
|
* This is no longer a handle based call.
|
|
*/
|
|
ret = ceph_removexattr(handle->data,
|
|
fsp->fsp_name->base_name,
|
|
name);
|
|
}
|
|
DBG_DEBUG("[CEPH] fremovexattr(...) = %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)
|
|
{
|
|
int ret;
|
|
DBG_DEBUG("[CEPH] fsetxattr(%p, %p, %s, %p, %llu, %d)\n", handle, fsp, name, value, llu(size), flags);
|
|
if (!fsp->fsp_flags.is_pathref) {
|
|
/*
|
|
* We can use an io_fd to set xattrs.
|
|
*/
|
|
ret = ceph_fsetxattr(handle->data,
|
|
fsp_get_io_fd(fsp),
|
|
name,
|
|
value,
|
|
size,
|
|
flags);
|
|
} else {
|
|
/*
|
|
* This is no longer a handle based call.
|
|
*/
|
|
ret = ceph_setxattr(handle->data,
|
|
fsp->fsp_name->base_name,
|
|
name,
|
|
value,
|
|
size,
|
|
flags);
|
|
}
|
|
DBG_DEBUG("[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.
|
|
*/
|
|
|
|
DBG_DEBUG("[CEPH] cephwrap_aio_force(%p, %p) = false (errno = ENOTSUP)\n", handle, fsp);
|
|
errno = ENOTSUP;
|
|
return false;
|
|
}
|
|
|
|
static NTSTATUS cephwrap_create_dfs_pathat(struct vfs_handle_struct *handle,
|
|
struct files_struct *dirfsp,
|
|
const struct smb_filename *smb_fname,
|
|
const struct referral *reflist,
|
|
size_t referral_count)
|
|
{
|
|
TALLOC_CTX *frame = talloc_stackframe();
|
|
NTSTATUS status = NT_STATUS_NO_MEMORY;
|
|
int ret;
|
|
char *msdfs_link = NULL;
|
|
struct smb_filename *full_fname = NULL;
|
|
|
|
full_fname = full_path_from_dirfsp_atname(talloc_tos(),
|
|
dirfsp,
|
|
smb_fname);
|
|
if (full_fname == NULL) {
|
|
goto out;
|
|
}
|
|
|
|
/* Form the msdfs_link contents */
|
|
msdfs_link = msdfs_link_string(frame,
|
|
reflist,
|
|
referral_count);
|
|
if (msdfs_link == NULL) {
|
|
goto out;
|
|
}
|
|
|
|
ret = ceph_symlink(handle->data,
|
|
msdfs_link,
|
|
full_fname->base_name);
|
|
if (ret == 0) {
|
|
status = NT_STATUS_OK;
|
|
} else {
|
|
status = map_nt_error_from_unix(-ret);
|
|
}
|
|
|
|
out:
|
|
|
|
DBG_DEBUG("[CEPH] create_dfs_pathat(%s) = %s\n",
|
|
full_fname != NULL ? full_fname->base_name : "",
|
|
nt_errstr(status));
|
|
|
|
TALLOC_FREE(frame);
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* Read and return the contents of a DFS redirect given a
|
|
* pathname. A caller can pass in NULL for ppreflist and
|
|
* preferral_count but still determine if this was a
|
|
* DFS redirect point by getting NT_STATUS_OK back
|
|
* without incurring the overhead of reading and parsing
|
|
* the referral contents.
|
|
*/
|
|
|
|
static NTSTATUS cephwrap_read_dfs_pathat(struct vfs_handle_struct *handle,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct files_struct *dirfsp,
|
|
struct smb_filename *smb_fname,
|
|
struct referral **ppreflist,
|
|
size_t *preferral_count)
|
|
{
|
|
NTSTATUS status = NT_STATUS_NO_MEMORY;
|
|
size_t bufsize;
|
|
char *link_target = NULL;
|
|
int referral_len;
|
|
bool ok;
|
|
#if defined(HAVE_BROKEN_READLINK)
|
|
char link_target_buf[PATH_MAX];
|
|
#else
|
|
char link_target_buf[7];
|
|
#endif
|
|
struct ceph_statx stx;
|
|
int ret;
|
|
|
|
SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
|
|
|
|
if (is_named_stream(smb_fname)) {
|
|
status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
|
|
goto err;
|
|
}
|
|
|
|
if (ppreflist == NULL && preferral_count == NULL) {
|
|
/*
|
|
* We're only checking if this is a DFS
|
|
* redirect. We don't need to return data.
|
|
*/
|
|
bufsize = sizeof(link_target_buf);
|
|
link_target = link_target_buf;
|
|
} else {
|
|
bufsize = PATH_MAX;
|
|
link_target = talloc_array(mem_ctx, char, bufsize);
|
|
if (!link_target) {
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
ret = ceph_statx(handle->data,
|
|
smb_fname->base_name,
|
|
&stx,
|
|
SAMBA_STATX_ATTR_MASK,
|
|
AT_SYMLINK_NOFOLLOW);
|
|
if (ret < 0) {
|
|
status = map_nt_error_from_unix(-ret);
|
|
goto err;
|
|
}
|
|
|
|
referral_len = ceph_readlink(handle->data,
|
|
smb_fname->base_name,
|
|
link_target,
|
|
bufsize - 1);
|
|
if (referral_len < 0) {
|
|
/* ceph errors are -errno. */
|
|
if (-referral_len == EINVAL) {
|
|
DBG_INFO("%s is not a link.\n",
|
|
smb_fname->base_name);
|
|
status = NT_STATUS_OBJECT_TYPE_MISMATCH;
|
|
} else {
|
|
status = map_nt_error_from_unix(-referral_len);
|
|
DBG_ERR("Error reading "
|
|
"msdfs link %s: %s\n",
|
|
smb_fname->base_name,
|
|
strerror(errno));
|
|
}
|
|
goto err;
|
|
}
|
|
link_target[referral_len] = '\0';
|
|
|
|
DBG_INFO("%s -> %s\n",
|
|
smb_fname->base_name,
|
|
link_target);
|
|
|
|
if (!strnequal(link_target, "msdfs:", 6)) {
|
|
status = NT_STATUS_OBJECT_TYPE_MISMATCH;
|
|
goto err;
|
|
}
|
|
|
|
if (ppreflist == NULL && preferral_count == NULL) {
|
|
/* Early return for checking if this is a DFS link. */
|
|
init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
ok = parse_msdfs_symlink(mem_ctx,
|
|
lp_msdfs_shuffle_referrals(SNUM(handle->conn)),
|
|
link_target,
|
|
ppreflist,
|
|
preferral_count);
|
|
|
|
if (ok) {
|
|
init_stat_ex_from_ceph_statx(&smb_fname->st, &stx);
|
|
status = NT_STATUS_OK;
|
|
} else {
|
|
status = NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
err:
|
|
|
|
if (link_target != link_target_buf) {
|
|
TALLOC_FREE(link_target);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
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,
|
|
.fs_capabilities_fn = cephwrap_fs_capabilities,
|
|
|
|
/* Directory operations */
|
|
|
|
.fdopendir_fn = cephwrap_fdopendir,
|
|
.readdir_fn = cephwrap_readdir,
|
|
.seekdir_fn = cephwrap_seekdir,
|
|
.telldir_fn = cephwrap_telldir,
|
|
.rewind_dir_fn = cephwrap_rewinddir,
|
|
.mkdirat_fn = cephwrap_mkdirat,
|
|
.closedir_fn = cephwrap_closedir,
|
|
|
|
/* File operations */
|
|
|
|
.create_dfs_pathat_fn = cephwrap_create_dfs_pathat,
|
|
.read_dfs_pathat_fn = cephwrap_read_dfs_pathat,
|
|
.openat_fn = cephwrap_openat,
|
|
.close_fn = cephwrap_close,
|
|
.pread_fn = cephwrap_pread,
|
|
.pread_send_fn = cephwrap_pread_send,
|
|
.pread_recv_fn = cephwrap_pread_recv,
|
|
.pwrite_fn = cephwrap_pwrite,
|
|
.pwrite_send_fn = cephwrap_pwrite_send,
|
|
.pwrite_recv_fn = cephwrap_pwrite_recv,
|
|
.lseek_fn = cephwrap_lseek,
|
|
.sendfile_fn = cephwrap_sendfile,
|
|
.recvfile_fn = cephwrap_recvfile,
|
|
.renameat_fn = cephwrap_renameat,
|
|
.fsync_send_fn = cephwrap_fsync_send,
|
|
.fsync_recv_fn = cephwrap_fsync_recv,
|
|
.stat_fn = cephwrap_stat,
|
|
.fstat_fn = cephwrap_fstat,
|
|
.lstat_fn = cephwrap_lstat,
|
|
.unlinkat_fn = cephwrap_unlinkat,
|
|
.fchmod_fn = cephwrap_fchmod,
|
|
.fchown_fn = cephwrap_fchown,
|
|
.lchown_fn = cephwrap_lchown,
|
|
.chdir_fn = cephwrap_chdir,
|
|
.getwd_fn = cephwrap_getwd,
|
|
.fntimes_fn = cephwrap_fntimes,
|
|
.ftruncate_fn = cephwrap_ftruncate,
|
|
.fallocate_fn = cephwrap_fallocate,
|
|
.lock_fn = cephwrap_lock,
|
|
.kernel_flock_fn = cephwrap_kernel_flock,
|
|
.fcntl_fn = cephwrap_fcntl,
|
|
.linux_setlease_fn = cephwrap_linux_setlease,
|
|
.getlock_fn = cephwrap_getlock,
|
|
.symlinkat_fn = cephwrap_symlinkat,
|
|
.readlinkat_fn = cephwrap_readlinkat,
|
|
.linkat_fn = cephwrap_linkat,
|
|
.mknodat_fn = cephwrap_mknodat,
|
|
.realpath_fn = cephwrap_realpath,
|
|
.chflags_fn = cephwrap_chflags,
|
|
.get_real_filename_fn = cephwrap_get_real_filename,
|
|
.connectpath_fn = cephwrap_connectpath,
|
|
|
|
/* EA operations. */
|
|
.getxattr_fn = cephwrap_getxattr,
|
|
.getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
|
|
.getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
|
|
.fgetxattr_fn = cephwrap_fgetxattr,
|
|
.flistxattr_fn = cephwrap_flistxattr,
|
|
.fremovexattr_fn = cephwrap_fremovexattr,
|
|
.fsetxattr_fn = cephwrap_fsetxattr,
|
|
|
|
/* Posix ACL Operations */
|
|
.sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
|
|
.sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
|
|
.sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
|
|
.sys_acl_delete_def_fd_fn = posixacl_xattr_acl_delete_def_fd,
|
|
|
|
/* aio operations */
|
|
.aio_force_fn = cephwrap_aio_force,
|
|
};
|
|
|
|
static_decl_vfs;
|
|
NTSTATUS vfs_ceph_init(TALLOC_CTX *ctx)
|
|
{
|
|
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
|
|
"ceph", &ceph_fns);
|
|
}
|