sin/samba-mirror
1
0
Fork 0
mirror of https://github.com/samba-team/samba.git synced 2024-12-23 17:34:34 +03:00
Code
81253373c8
samba-mirror/source3/modules/vfs_ceph_new.c
Anoop C S e3d35ca694 vfs_ceph_new: Remove unused symbol for ceph_readdir 
ce459ddbcd recently switched the readdir
implementation to use ceph_readdir_r(). Thus ceph_readdir() is
unnecessarily loaded which is no longer used.

https://bugzilla.samba.org/show_bug.cgi?id=15703

Signed-off-by: Anoop C S <anoopcs@samba.org>
Reviewed-by: John Mulligan <jmulligan@redhat.com>

Autobuild-User(master): Anoop C S <anoopcs@samba.org>
Autobuild-Date(master): Sun Nov  3 11:07:23 UTC 2024 on atb-devel-224
2024-11-03 11:07:23 +00:00

3686 lines
89 KiB
C
Raw Blame History

/*
Unix SMB/CIFS implementation.
Wrap disk only vfs functions to sidestep dodgy compilers.
Copyright (C) Tim Potter 1998
Copyright (C) Jeremy Allison 2007
Copyright (C) Brian Chrisman 2011 <bchrisman@gmail.com>
Copyright (C) Richard Sharpe 2011 <realrichardsharpe@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This VFS only works with the libcephfs.so user-space client. It is not needed
* if you are using the kernel client or the FUSE client.
*
* Add the following smb.conf parameter to each share that will be hosted on
* Ceph:
*
* vfs objects = [any others you need go here] ceph_new
*/
#include "includes.h"
#include "smbd/smbd.h"
#include "system/filesys.h"
#include <dirent.h>
#include <sys/statvfs.h>
#include "cephfs/libcephfs.h"
#include "smbprofile.h"
#include "modules/posixacl_xattr.h"
#include "lib/util/tevent_unix.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS
#ifndef LIBCEPHFS_VERSION
#define LIBCEPHFS_VERSION(maj, min, extra) ((maj << 16) + (min << 8) + extra)
#define LIBCEPHFS_VERSION_CODE LIBCEPHFS_VERSION(0, 0, 0)
#endif
/*
* Use %llu whenever we have a 64bit unsigned int, and cast to (long long
* unsigned)
*/
#define llu(_var) ((long long unsigned)_var)
/*
* Note, libcephfs's return code model is to return -errno. Thus we have to
* convert to what Samba expects: set errno to non-negative value and return -1.
*
* Using convenience helper functions to avoid non-hygienic macro.
*/
static int status_code(int ret)
{
if (ret < 0) {
errno = -ret;
return -1;
}
return ret;
}
static ssize_t lstatus_code(intmax_t ret)
{
if (ret < 0) {
errno = -((int)ret);
return -1;
}
return (ssize_t)ret;
}
enum vfs_cephfs_proxy_mode {
VFS_CEPHFS_PROXY_NO = 0,
VFS_CEPHFS_PROXY_YES,
VFS_CEPHFS_PROXY_AUTO
};
static const struct enum_list enum_vfs_cephfs_proxy_vals[] = {
{VFS_CEPHFS_PROXY_NO, "No"},
{VFS_CEPHFS_PROXY_NO, "False"},
{VFS_CEPHFS_PROXY_NO, "0"},
{VFS_CEPHFS_PROXY_NO, "Off"},
{VFS_CEPHFS_PROXY_NO, "disable"},
{VFS_CEPHFS_PROXY_YES, "Yes"},
{VFS_CEPHFS_PROXY_YES, "True"},
{VFS_CEPHFS_PROXY_YES, "1"},
{VFS_CEPHFS_PROXY_YES, "On"},
{VFS_CEPHFS_PROXY_YES, "enable"},
{VFS_CEPHFS_PROXY_AUTO, "auto"},
{-1, NULL}
};
#define CEPH_FN(_name) typeof(_name) *_name ## _fn
struct vfs_ceph_config {
const char *conf_file;
const char *user_id;
const char *fsname;
struct cephmount_cached *mount_entry;
struct ceph_mount_info *mount;
enum vfs_cephfs_proxy_mode proxy;
void *libhandle;
CEPH_FN(ceph_ll_lookup_inode);
CEPH_FN(ceph_ll_walk);
CEPH_FN(ceph_ll_getattr);
CEPH_FN(ceph_ll_setattr);
CEPH_FN(ceph_ll_releasedir);
CEPH_FN(ceph_ll_create);
CEPH_FN(ceph_ll_lookup);
CEPH_FN(ceph_ll_open);
CEPH_FN(ceph_ll_opendir);
CEPH_FN(ceph_ll_mkdir);
CEPH_FN(ceph_ll_rmdir);
CEPH_FN(ceph_ll_unlink);
CEPH_FN(ceph_ll_symlink);
CEPH_FN(ceph_ll_readlink);
CEPH_FN(ceph_ll_put);
CEPH_FN(ceph_ll_read);
CEPH_FN(ceph_ll_write);
CEPH_FN(ceph_ll_lseek);
CEPH_FN(ceph_ll_fsync);
CEPH_FN(ceph_ll_fallocate);
CEPH_FN(ceph_ll_link);
CEPH_FN(ceph_ll_rename);
CEPH_FN(ceph_ll_mknod);
CEPH_FN(ceph_ll_getxattr);
CEPH_FN(ceph_ll_setxattr);
CEPH_FN(ceph_ll_listxattr);
CEPH_FN(ceph_ll_removexattr);
CEPH_FN(ceph_ll_lookup_root);
CEPH_FN(ceph_ll_statfs);
CEPH_FN(ceph_ll_close);
CEPH_FN(ceph_chdir);
CEPH_FN(ceph_conf_get);
CEPH_FN(ceph_conf_read_file);
CEPH_FN(ceph_conf_set);
CEPH_FN(ceph_create);
CEPH_FN(ceph_getcwd);
CEPH_FN(ceph_init);
CEPH_FN(ceph_mount);
CEPH_FN(ceph_release);
CEPH_FN(ceph_select_filesystem);
CEPH_FN(ceph_unmount);
CEPH_FN(ceph_userperm_destroy);
CEPH_FN(ceph_userperm_new);
CEPH_FN(ceph_version);
CEPH_FN(ceph_rewinddir);
CEPH_FN(ceph_readdir_r);
};
/*
* Track unique connections, as virtual mounts, to cephfs file systems.
* Individual mount-entries will be set on the handle->data attribute, but
* the mounts themselves will be shared so as not to spawn extra mounts
* to the same cephfs.
*
* Individual mounts are IDed by a 'cookie' value that is a string built
* from identifying parameters found in smb.conf.
*/
static struct cephmount_cached {
char *cookie;
int32_t count;
struct ceph_mount_info *mount;
struct cephmount_cached *next, *prev;
uint64_t fd_index;
} *cephmount_cached;
static bool cephmount_cache_add(const char *cookie,
struct ceph_mount_info *mount,
struct cephmount_cached **out_entry)
{
struct cephmount_cached *entry = NULL;
entry = talloc_zero(NULL, struct cephmount_cached);
if (entry == NULL) {
errno = ENOMEM;
return false;
}
entry->cookie = talloc_strdup(entry, cookie);
if (entry->cookie == NULL) {
talloc_free(entry);
errno = ENOMEM;
return false;
}
entry->mount = mount;
entry->count = 1;
DBG_DEBUG("[CEPH] adding mount cache entry: cookie='%s'\n",
entry->cookie);
DLIST_ADD(cephmount_cached, entry);
*out_entry = entry;
return true;
}
static bool cephmount_cache_change_ref(struct cephmount_cached *entry, int n)
{
entry->count += n;
DBG_DEBUG("[CEPH] updated mount cache entry: count=%" PRId32
"change=%+d cookie='%s'\n", entry->count, n, entry->cookie);
if (entry->count && (n < 0)) {
DBG_DEBUG("[CEPH] mount cache entry still in use: "
"count=%" PRId32 " cookie='%s'\n",
entry->count, entry->cookie);
}
return (entry->count == 0);
}
static struct cephmount_cached *cephmount_cache_update(const char *cookie)
{
struct cephmount_cached *entry = NULL;
for (entry = cephmount_cached; entry; entry = entry->next) {
if (strcmp(entry->cookie, cookie) == 0) {
cephmount_cache_change_ref(entry, 1);
return entry;
}
}
return NULL;
}
static bool cephmount_cache_remove(struct cephmount_cached *entry)
{
if (!cephmount_cache_change_ref(entry, -1)) {
return false;
}
DBG_DEBUG("[CEPH] removing mount cache entry: cookie='%s'\n",
entry->cookie);
DLIST_REMOVE(cephmount_cached, entry);
talloc_free(entry);
return true;
}
static char *cephmount_get_cookie(TALLOC_CTX * mem_ctx,
struct vfs_ceph_config *config)
{
return talloc_asprintf(mem_ctx, "(%s/%s/%s)",
config->conf_file,
config->user_id,
config->fsname);
}
static int cephmount_update_conf(struct vfs_ceph_config *config,
struct ceph_mount_info *mnt,
const char *option,
const char *value)
{
DBG_DEBUG("[CEPH] calling ceph_conf_set: option='%s' value='%s'\n",
option,
value);
return config->ceph_conf_set_fn(mnt, option, value);
}
static struct ceph_mount_info *cephmount_mount_fs(
struct vfs_ceph_config *config)
{
int ret;
char buf[256];
struct ceph_mount_info *mnt = NULL;
/* if config_file and/or user_id are NULL, ceph will use defaults */
DBG_DEBUG("[CEPH] calling ceph_create: user_id='%s'\n",
(config->user_id != NULL) ? config->user_id : "");
ret = config->ceph_create_fn(&mnt, config->user_id);
if (ret) {
errno = -ret;
return NULL;
}
DBG_DEBUG("[CEPH] calling ceph_conf_read_file: conf_file='%s'\n",
(config->conf_file == NULL) ? "default path"
: config->conf_file);
ret = config->ceph_conf_read_file_fn(mnt, config->conf_file);
if (ret) {
goto out;
}
DBG_DEBUG("[CEPH] calling ceph_conf_get: option='%s'\n", "log_file");
ret = config->ceph_conf_get_fn(mnt, "log_file", buf, sizeof(buf));
if (ret < 0) {
goto out;
}
/* libcephfs disables POSIX ACL support by default, enable it... */
ret = cephmount_update_conf(config,
mnt,
"client_acl_type",
"posix_acl");
if (ret < 0) {
goto out;
}
/* tell libcephfs to perform local permission checks */
ret = cephmount_update_conf(config,
mnt,
"fuse_default_permissions",
"false");
if (ret < 0) {
goto out;
}
/*
* select a cephfs file system to use:
* In ceph, multiple file system support has been stable since
* 'pacific'. Permit different shares to access different file systems.
*/
if (config->fsname != NULL) {
DBG_DEBUG("[CEPH] calling ceph_select_filesystem: "
"fsname='%s'\n", config->fsname);
ret = config->ceph_select_filesystem_fn(mnt, config->fsname);
if (ret < 0) {
goto out;
}
}
DBG_DEBUG("[CEPH] calling ceph_mount: mnt=%p\n", mnt);
ret = config->ceph_mount_fn(mnt, NULL);
if (ret < 0) {
goto out;
}
ret = 0;
out:
if (ret != 0) {
config->ceph_release_fn(mnt);
mnt = NULL;
DBG_ERR("[CEPH] mount failed: user_id='%s' fsname='%s' %s",
(config->user_id != NULL) ? config->user_id : "",
(config->fsname != NULL) ? config->fsname : "",
strerror(-ret));
errno = -ret;
} else {
DBG_DEBUG("[CEPH] mount done: user_id='%s' fsname='%s'",
(config->user_id != NULL) ? config->user_id : "",
(config->fsname != NULL) ? config->fsname : "");
}
return mnt;
}
#define CHECK_CEPH_FN(hnd, func) \
do { \
config->func ## _fn = dlsym(hnd, #func); \
if (config->func ## _fn == NULL) { \
if (dlclose(hnd)) { \
DBG_ERR("%s\n", dlerror()); \
} \
errno = ENOSYS; \
return false; \
} \
} while(0);
static bool vfs_cephfs_load_lib(struct vfs_ceph_config *config)
{
void *libhandle = NULL;
const char *libname = "libcephfs.so.2";
const char *libname_proxy = "libcephfs_proxy.so.2";
switch (config->proxy) {
case VFS_CEPHFS_PROXY_YES:
case VFS_CEPHFS_PROXY_AUTO:
libhandle = dlopen(libname_proxy, RTLD_NOW);
if (libhandle == NULL) {
if (config->proxy == VFS_CEPHFS_PROXY_YES) {
DBG_ERR("%s\n", dlerror());
return false;
}
DBG_DEBUG("%s, trying %s\n", dlerror(), libname);
FALL_THROUGH;
} else {
break;
}
case VFS_CEPHFS_PROXY_NO:
default:
libhandle = dlopen(libname, RTLD_LAZY);
if (libhandle == NULL) {
DBG_ERR("%s\n", dlerror());
return false;
}
break;
}
CHECK_CEPH_FN(libhandle, ceph_ll_lookup_inode);
CHECK_CEPH_FN(libhandle, ceph_ll_walk);
CHECK_CEPH_FN(libhandle, ceph_ll_getattr);
CHECK_CEPH_FN(libhandle, ceph_ll_setattr);
CHECK_CEPH_FN(libhandle, ceph_ll_releasedir);
CHECK_CEPH_FN(libhandle, ceph_ll_create);
CHECK_CEPH_FN(libhandle, ceph_ll_open);
CHECK_CEPH_FN(libhandle, ceph_ll_opendir);
CHECK_CEPH_FN(libhandle, ceph_ll_mkdir);
CHECK_CEPH_FN(libhandle, ceph_ll_rmdir);
CHECK_CEPH_FN(libhandle, ceph_ll_unlink);
CHECK_CEPH_FN(libhandle, ceph_ll_symlink);
CHECK_CEPH_FN(libhandle, ceph_ll_readlink);
CHECK_CEPH_FN(libhandle, ceph_ll_put);
CHECK_CEPH_FN(libhandle, ceph_ll_read);
CHECK_CEPH_FN(libhandle, ceph_ll_write);
CHECK_CEPH_FN(libhandle, ceph_ll_lseek);
CHECK_CEPH_FN(libhandle, ceph_ll_fsync);
CHECK_CEPH_FN(libhandle, ceph_ll_fallocate);
CHECK_CEPH_FN(libhandle, ceph_ll_link);
CHECK_CEPH_FN(libhandle, ceph_ll_rename);
CHECK_CEPH_FN(libhandle, ceph_ll_mknod);
CHECK_CEPH_FN(libhandle, ceph_ll_getxattr);
CHECK_CEPH_FN(libhandle, ceph_ll_setxattr);
CHECK_CEPH_FN(libhandle, ceph_ll_listxattr);
CHECK_CEPH_FN(libhandle, ceph_ll_removexattr);
CHECK_CEPH_FN(libhandle, ceph_ll_lookup);
CHECK_CEPH_FN(libhandle, ceph_ll_lookup_root);
CHECK_CEPH_FN(libhandle, ceph_ll_statfs);
CHECK_CEPH_FN(libhandle, ceph_ll_close);
CHECK_CEPH_FN(libhandle, ceph_chdir);
CHECK_CEPH_FN(libhandle, ceph_conf_get);
CHECK_CEPH_FN(libhandle, ceph_conf_read_file);
CHECK_CEPH_FN(libhandle, ceph_conf_set);
CHECK_CEPH_FN(libhandle, ceph_create);
CHECK_CEPH_FN(libhandle, ceph_getcwd);
CHECK_CEPH_FN(libhandle, ceph_init);
CHECK_CEPH_FN(libhandle, ceph_mount);
CHECK_CEPH_FN(libhandle, ceph_release);
CHECK_CEPH_FN(libhandle, ceph_select_filesystem);
CHECK_CEPH_FN(libhandle, ceph_unmount);
CHECK_CEPH_FN(libhandle, ceph_userperm_destroy);
CHECK_CEPH_FN(libhandle, ceph_userperm_new);
CHECK_CEPH_FN(libhandle, ceph_version);
CHECK_CEPH_FN(libhandle, ceph_rewinddir);
CHECK_CEPH_FN(libhandle, ceph_readdir_r);
config->libhandle = libhandle;
return true;
}
static int vfs_ceph_config_destructor(struct vfs_ceph_config *config)
{
if (config->libhandle) {
if (dlclose(config->libhandle)) {
DBG_ERR("%s\n", dlerror());
}
}
return 0;
}
static bool vfs_ceph_load_config(struct vfs_handle_struct *handle,
struct vfs_ceph_config **config)
{
struct vfs_ceph_config *config_tmp = NULL;
int snum = SNUM(handle->conn);
const char *module_name = "ceph_new";
bool ok;
if (SMB_VFS_HANDLE_TEST_DATA(handle)) {
SMB_VFS_HANDLE_GET_DATA(handle, config_tmp,
struct vfs_ceph_config,
return false);
goto done;
}
config_tmp = talloc_zero(handle->conn, struct vfs_ceph_config);
if (config_tmp == NULL) {
errno = ENOMEM;
return false;
}
talloc_set_destructor(config_tmp, vfs_ceph_config_destructor);
config_tmp->conf_file = lp_parm_const_string(snum, module_name,
"config_file", ".");
config_tmp->user_id = lp_parm_const_string(snum, module_name,
"user_id", "");
config_tmp->fsname = lp_parm_const_string(snum, module_name,
"filesystem", "");
config_tmp->proxy = lp_parm_enum(snum, module_name, "proxy",
enum_vfs_cephfs_proxy_vals,
VFS_CEPHFS_PROXY_NO);
if (config_tmp->proxy == -1) {
DBG_ERR("value for proxy: mode unknown\n");
return false;
}
ok = vfs_cephfs_load_lib(config_tmp);
if (!ok) {
return false;
}
SMB_VFS_HANDLE_SET_DATA(handle, config_tmp, NULL,
struct vfs_ceph_config, return false);
done:
*config = config_tmp;
return true;
}
/* Check for NULL pointer parameters in vfs_ceph_* functions */
/* We don't want to have NULL function pointers lying around. Someone
is sure to try and execute them. These stubs are used to prevent
this possibility. */
static int vfs_ceph_connect(struct vfs_handle_struct *handle,
const char *service, const char *user)
{
int ret = 0;
struct cephmount_cached *entry = NULL;
struct ceph_mount_info *mount = NULL;
char *cookie;
struct vfs_ceph_config *config = NULL;
bool ok;
ok = vfs_ceph_load_config(handle, &config);
if (!ok) {
return -1;
}
cookie = cephmount_get_cookie(handle, config);
if (cookie == NULL) {
return -1;
}
entry = cephmount_cache_update(cookie);
if (entry != NULL) {
goto connect_ok;
}
mount = cephmount_mount_fs(config);
if (mount == NULL) {
ret = -1;
goto connect_fail;
}
ok = cephmount_cache_add(cookie, mount, &entry);
if (!ok) {
ret = -1;
goto connect_fail;
}
connect_ok:
config->mount = entry->mount;
config->mount_entry = entry;
DBG_INFO("[CEPH] connection established with the server: "
"snum=%d cookie='%s'\n",
SNUM(handle->conn),
cookie);
/*
* Unless we have an async implementation of getxattrat turn this off.
*/
lp_do_parameter(SNUM(handle->conn), "smbd async dosmode", "false");
connect_fail:
talloc_free(cookie);
return ret;
}
static void vfs_ceph_disconnect(struct vfs_handle_struct *handle)
{
struct ceph_mount_info *mount = NULL;
int ret = 0;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config, return);
mount = config->mount;
if (!cephmount_cache_remove(config->mount_entry)) {
return;
}
ret = config->ceph_unmount_fn(mount);
if (ret < 0) {
DBG_ERR("[CEPH] failed to unmount: snum=%d %s\n",
SNUM(handle->conn),
strerror(-ret));
}
ret = config->ceph_release_fn(mount);
if (ret < 0) {
DBG_ERR("[CEPH] failed to release: snum=%d %s\n",
SNUM(handle->conn),
strerror(-ret));
}
config->mount_entry = NULL;
TALLOC_FREE(config);
}
/* Ceph user-credentials */
static struct UserPerm *vfs_ceph_userperm_new(struct vfs_ceph_config *config,
struct connection_struct *conn)
{
const struct security_unix_token *unix_token = NULL;
unix_token = get_current_utok(conn);
return config->ceph_userperm_new_fn(unix_token->uid,
unix_token->gid,
unix_token->ngroups,
unix_token->groups);
}
static void vfs_ceph_userperm_del(struct vfs_ceph_config *config,
struct UserPerm *uperm)
{
if (uperm != NULL) {
config->ceph_userperm_destroy_fn(uperm);
}
}
/* Ceph's statx to Samba's stat_ex */
#define SAMBA_STATX_ATTR_MASK (CEPH_STATX_BASIC_STATS | CEPH_STATX_BTIME)
static void smb_stat_from_ceph_statx(SMB_STRUCT_STAT *st,
const struct ceph_statx *stx)
{
ZERO_STRUCTP(st);
st->st_ex_dev = stx->stx_dev;
st->st_ex_rdev = stx->stx_rdev;
st->st_ex_ino = stx->stx_ino;
st->st_ex_mode = stx->stx_mode;
st->st_ex_uid = stx->stx_uid;
st->st_ex_gid = stx->stx_gid;
st->st_ex_size = stx->stx_size;
st->st_ex_nlink = stx->stx_nlink;
st->st_ex_atime = stx->stx_atime;
st->st_ex_btime = stx->stx_btime;
st->st_ex_ctime = stx->stx_ctime;
st->st_ex_mtime = stx->stx_mtime;
st->st_ex_blksize = stx->stx_blksize;
st->st_ex_blocks = stx->stx_blocks;
}
/* Ceph's inode + ino-number */
struct vfs_ceph_iref {
struct Inode *inode;
uint64_t ino; /* for debug printing */
bool owner; /* indicate when actual owner of Inode ref */
};
/* Ceph DIR pointer wrapper */
struct vfs_ceph_dirp {
struct ceph_dir_result *cdr;
};
/* Ceph file-handles via fsp-extension */
struct vfs_ceph_fh {
struct vfs_ceph_dirp dirp; /* keep first for up-casting */
struct cephmount_cached *cme;
struct UserPerm *uperm;
struct files_struct *fsp;
struct vfs_ceph_config *config;
struct vfs_ceph_iref iref;
struct Fh *fh;
struct dirent *de;
int fd;
int o_flags;
};
static int cephmount_next_fd(struct cephmount_cached *cme)
{
/*
* Those file-descriptor numbers are reported back to VFS layer
* (debug-hints only). Using numbers within a large range of
* [1000, 1001000], thus the chances of (annoying but harmless)
* collision are low.
*/
uint64_t next;
next = (cme->fd_index++ % 1000000) + 1000;
return (int)next;
}
static struct dirent *vfs_ceph_get_fh_dirent(struct vfs_ceph_fh *cfh)
{
if (cfh->de == NULL) {
cfh->de = talloc_zero_size(cfh->fsp, sizeof(*(cfh->de)));
}
return cfh->de;
}
static void vfs_ceph_put_fh_dirent(struct vfs_ceph_fh *cfh)
{
if (cfh->de != NULL) {
TALLOC_FREE(cfh->de);
cfh->de = NULL;
}
}
static int vfs_ceph_release_fh(struct vfs_ceph_fh *cfh)
{
int ret = 0;
if (cfh->fh != NULL) {
DBG_DEBUG("[ceph] ceph_ll_close: fd=%d o_flags=0x%x\n",
cfh->fd, cfh->o_flags);
ret = cfh->config->ceph_ll_close_fn(cfh->cme->mount, cfh->fh);
cfh->fh = NULL;
}
if (cfh->iref.inode != NULL) {
DBG_DEBUG("[ceph] ceph_ll_put: ino=%" PRIu64 "\n",
cfh->iref.ino);
cfh->config->ceph_ll_put_fn(cfh->cme->mount, cfh->iref.inode);
cfh->iref.inode = NULL;
}
if (cfh->uperm != NULL) {
vfs_ceph_userperm_del(cfh->config, cfh->uperm);
cfh->uperm = NULL;
}
vfs_ceph_put_fh_dirent(cfh);
cfh->fd = -1;
return ret;
}
static void vfs_ceph_fsp_ext_destroy_cb(void *p_data)
{
vfs_ceph_release_fh((struct vfs_ceph_fh *)p_data);
}
static int vfs_ceph_add_fh(struct vfs_handle_struct *handle,
files_struct *fsp,
struct vfs_ceph_fh **out_cfh)
{
struct cephmount_cached *cme = NULL;
struct UserPerm *uperm = NULL;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
cme = config->mount_entry;
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
*out_cfh = VFS_ADD_FSP_EXTENSION(handle,
fsp,
struct vfs_ceph_fh,
vfs_ceph_fsp_ext_destroy_cb);
if (*out_cfh == NULL) {
vfs_ceph_userperm_del(config, uperm);
return -ENOMEM;
}
(*out_cfh)->cme = cme;
(*out_cfh)->uperm = uperm;
(*out_cfh)->fsp = fsp;
(*out_cfh)->config = config;
(*out_cfh)->fd = -1;
return 0;
}
static void vfs_ceph_remove_fh(struct vfs_handle_struct *handle,
struct files_struct *fsp)
{
VFS_REMOVE_FSP_EXTENSION(handle, fsp);
}
static int vfs_ceph_fetch_fh(struct vfs_handle_struct *handle,
const struct files_struct *fsp,
struct vfs_ceph_fh **out_cfh)
{
*out_cfh = VFS_FETCH_FSP_EXTENSION(handle, fsp);
return (*out_cfh == NULL) ? -EBADF : 0;
}
static int vfs_ceph_fetch_io_fh(struct vfs_handle_struct *handle,
const struct files_struct *fsp,
struct vfs_ceph_fh **out_cfh)
{
*out_cfh = VFS_FETCH_FSP_EXTENSION(handle, fsp);
return (*out_cfh == NULL) || ((*out_cfh)->fh == NULL) ? -EBADF : 0;
}
static void vfs_ceph_assign_fh_fd(struct vfs_ceph_fh *cfh)
{
cfh->fd = cephmount_next_fd(cfh->cme); /* debug only */
}
/* Ceph low-level wrappers */
static int vfs_ceph_ll_lookup_inode(const struct vfs_handle_struct *handle,
uint64_t inoval,
Inode **pout)
{
struct inodeno_t ino = {.val = inoval};
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_lookup_inode: ino=%" PRIu64 "\n", inoval);
return config->ceph_ll_lookup_inode_fn(config->mount, ino, pout);
}
static int vfs_ceph_ll_walk(const struct vfs_handle_struct *handle,
const char *name,
struct Inode **pin,
struct ceph_statx *stx,
unsigned int want,
unsigned int flags)
{
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_walk: name=%s\n", name);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_walk_fn(config->mount,
name,
pin,
stx,
want,
flags,
uperm);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_statfs(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
struct statvfs *stbuf)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_statfs: ino=%" PRIu64 "\n", iref->ino);
return config->ceph_ll_statfs_fn(config->mount, iref->inode, stbuf);
}
static int vfs_ceph_ll_getattr2(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
struct UserPerm *uperm,
SMB_STRUCT_STAT *st)
{
struct ceph_statx stx = {0};
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_getattr: ino=%" PRIu64 "\n", iref->ino);
ret = config->ceph_ll_getattr_fn(config->mount,
iref->inode,
&stx,
SAMBA_STATX_ATTR_MASK,
0,
uperm);
if (ret == 0) {
smb_stat_from_ceph_statx(st, &stx);
}
return ret;
}
static int vfs_ceph_ll_getattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
SMB_STRUCT_STAT *st)
{
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config,
struct vfs_ceph_config,
return -ENOMEM);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = vfs_ceph_ll_getattr2(handle, iref, uperm, st);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_chown(struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
uid_t uid,
gid_t gid)
{
struct ceph_statx stx = {.stx_uid = uid, .stx_gid = gid};
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_setattr: ino=%" PRIu64 " uid=%u gid=%u\n",
iref->ino, uid, gid);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_setattr_fn(config->mount,
iref->inode,
&stx,
CEPH_STATX_UID | CEPH_STATX_GID,
uperm);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_fchown(struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
uid_t uid,
gid_t gid)
{
struct ceph_statx stx = {.stx_uid = uid, .stx_gid = gid};
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_setattr: ino=%" PRIu64 " uid=%u gid=%u\n",
cfh->iref.ino, uid, gid);
return config->ceph_ll_setattr_fn(config->mount,
cfh->iref.inode,
&stx,
CEPH_STATX_UID | CEPH_STATX_GID,
cfh->uperm);
}
static int vfs_ceph_ll_fchmod(struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
mode_t mode)
{
struct ceph_statx stx = {.stx_mode = mode};
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_setattr: ino=%" PRIu64 " mode=%o\n",
cfh->iref.ino, mode);
return config->ceph_ll_setattr_fn(config->mount,
cfh->iref.inode,
&stx,
CEPH_STATX_MODE,
cfh->uperm);
}
static int vfs_ceph_ll_futimes(struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
const struct smb_file_time *ft)
{
struct ceph_statx stx = {0};
int mask = 0;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
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->ctime)) {
stx.stx_ctime = ft->ctime;
mask |= CEPH_SETATTR_CTIME;
}
if (!is_omit_timespec(&ft->create_time)) {
stx.stx_btime = ft->create_time;
mask |= CEPH_SETATTR_BTIME;
}
if (!mask) {
return 0;
}
DBG_DEBUG("[ceph] ceph_ll_setattr: ino=%" PRIu64 " mtime=%" PRIu64
" atime=%" PRIu64 " ctime=%" PRIu64 " btime=%" PRIu64 "\n",
cfh->iref.ino,
full_timespec_to_nt_time(&stx.stx_mtime),
full_timespec_to_nt_time(&stx.stx_atime),
full_timespec_to_nt_time(&stx.stx_ctime),
full_timespec_to_nt_time(&stx.stx_btime));
return config->ceph_ll_setattr_fn(config->mount,
cfh->iref.inode,
&stx,
mask,
cfh->uperm);
}
static int vfs_ceph_ll_releasedir(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_releasedir: ino=%" PRIu64 " fd=%d\n",
dircfh->iref.ino, dircfh->fd);
return config->ceph_ll_releasedir_fn(config->mount, dircfh->dirp.cdr);
}
static int vfs_ceph_ll_create(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *parent,
const char *name,
mode_t mode,
int oflags,
struct vfs_ceph_fh *cfh)
{
struct ceph_statx stx = {.stx_ino = 0};
struct Inode *inode = NULL;
struct Fh *fh = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_create: parent-ino=%" PRIu64 " name=%s "
"mode=%o\n", parent->ino, name, mode);
ret = config->ceph_ll_create_fn(config->mount,
parent->inode,
name,
mode,
oflags,
&inode,
&fh,
&stx,
CEPH_STATX_INO,
0,
cfh->uperm);
if (ret != 0) {
return ret;
}
cfh->iref.inode = inode;
cfh->iref.ino = (long)stx.stx_ino;
cfh->iref.owner = true;
cfh->fh = fh;
cfh->o_flags = oflags;
vfs_ceph_assign_fh_fd(cfh);
return 0;
}
static int vfs_ceph_ll_lookup(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *parent,
const char *name,
struct vfs_ceph_iref *iref)
{
struct ceph_statx stx = {.stx_ino = 0};
struct Inode *inode = NULL;
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_lookup: parent-ino=%" PRIu64 " name=%s\n",
parent->ino, name);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_lookup_fn(config->mount,
parent->inode,
name,
&inode,
&stx,
CEPH_STATX_INO,
0,
uperm);
vfs_ceph_userperm_del(config, uperm);
if (ret != 0) {
return ret;
}
iref->inode = inode;
iref->ino = stx.stx_ino;
iref->owner = true;
return 0;
}
static int vfs_ceph_ll_lookup2(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *parent_fh,
const char *name,
unsigned want,
struct vfs_ceph_iref *iref,
struct ceph_statx *stx)
{
struct Inode *inode = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_lookup: parent-ino=%" PRIu64 " name=%s\n",
parent_fh->iref.ino, name);
ret = config->ceph_ll_lookup_fn(config->mount,
parent_fh->iref.inode,
name,
&inode,
stx,
want | CEPH_STATX_INO,
0,
parent_fh->uperm);
if (ret != 0) {
return ret;
}
iref->inode = inode;
iref->ino = stx->stx_ino;
iref->owner = true;
return 0;
}
static int vfs_ceph_ll_lookupat(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *parent_fh,
const char *name,
struct vfs_ceph_iref *iref)
{
struct ceph_statx stx = {.stx_ino = 0};
return vfs_ceph_ll_lookup2(handle,
parent_fh,
name,
CEPH_STATX_INO,
iref,
&stx);
}
static int vfs_ceph_ll_lookupat2(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *parent_fh,
const char *name,
struct vfs_ceph_iref *iref,
SMB_STRUCT_STAT *st)
{
struct ceph_statx stx = {.stx_ino = 0};
int ret;
ret = vfs_ceph_ll_lookup2(handle,
parent_fh,
name,
CEPH_STATX_ALL_STATS,
iref,
&stx);
if (ret == 0) {
smb_stat_from_ceph_statx(st, &stx);
}
return ret;
}
static int vfs_ceph_ll_open(const struct vfs_handle_struct *handle,
struct vfs_ceph_fh *cfh,
int flags)
{
struct Inode *in = cfh->iref.inode;
struct Fh *fh = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_open: ino=%" PRIu64 " flags=0x%x\n",
cfh->iref.ino, flags);
ret = config->ceph_ll_open_fn(config->mount, in, flags, &fh,
cfh->uperm);
if (ret == 0) {
cfh->fh = fh;
cfh->o_flags = flags;
vfs_ceph_assign_fh_fd(cfh);
}
return ret;
}
static int vfs_ceph_ll_opendir(const struct vfs_handle_struct *handle,
struct vfs_ceph_fh *cfh)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_opendir: ino=%" PRIu64 "\n", cfh->iref.ino);
return config->ceph_ll_opendir_fn(config->mount,
cfh->iref.inode,
&cfh->dirp.cdr,
cfh->uperm);
}
static int vfs_ceph_ll_readdir(const struct vfs_handle_struct *hndl,
const struct vfs_ceph_fh *dircfh)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(hndl, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_readdir: ino=%" PRIu64 " fd=%d\n",
dircfh->iref.ino, dircfh->fd);
return config->ceph_readdir_r_fn(config->mount,
dircfh->dirp.cdr,
dircfh->de);
}
static void vfs_ceph_ll_rewinddir(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config, return);
DBG_DEBUG("[ceph] ceph_rewinddir: ino=%" PRIu64 " fd=%d\n",
dircfh->iref.ino, dircfh->fd);
config->ceph_rewinddir_fn(config->mount, dircfh->dirp.cdr);
}
static int vfs_ceph_ll_mkdirat(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh,
const char *name,
mode_t mode,
struct vfs_ceph_iref *iref)
{
struct ceph_statx stx = {.stx_ino = 0};
struct Inode *inode = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_mkdir: parent-ino=%" PRIu64 " name=%s "
"mode=%o\n", dircfh->iref.ino, name, mode);
ret = config->ceph_ll_mkdir_fn(config->mount,
dircfh->iref.inode,
name,
mode,
&inode,
&stx,
CEPH_STATX_INO,
0,
dircfh->uperm);
if (ret != 0) {
return ret;
}
iref->inode = inode;
iref->ino = stx.stx_ino;
iref->owner = true;
return false;
}
static int vfs_ceph_ll_rmdir(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh,
const char *name)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_rmdir: parent-ino=%" PRIu64 " name=%s\n",
dircfh->iref.ino, name);
return config->ceph_ll_rmdir_fn(config->mount,
dircfh->iref.inode,
name,
dircfh->uperm);
}
static int vfs_ceph_ll_unlinkat(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh,
const char *name)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_unlink: parent-ino=%" PRIu64 " name=%s\n",
dircfh->iref.ino, name);
return config->ceph_ll_unlink_fn(config->mount,
dircfh->iref.inode,
name,
dircfh->uperm);
}
static int vfs_ceph_ll_symlinkat(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh,
const char *name,
const char *value,
struct vfs_ceph_iref *out_iref)
{
struct ceph_statx stx = {.stx_ino = 0};
struct Inode *inode = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_symlink: parent-ino=%" PRIu64 " name=%s\n",
dircfh->iref.ino, name);
ret = config->ceph_ll_symlink_fn(config->mount,
dircfh->iref.inode,
name,
value,
&inode,
&stx,
CEPH_STATX_INO,
0,
dircfh->uperm);
if (ret != 0) {
return ret;
}
out_iref->inode = inode;
out_iref->ino = stx.stx_ino;
out_iref->owner = true;
return 0;
}
static int vfs_ceph_ll_readlinkat(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh,
const struct vfs_ceph_iref *iref,
char *buf,
size_t bsz)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_readlink: ino=%" PRIu64 "\n", iref->ino);
return config->ceph_ll_readlink_fn(config->mount,
iref->inode,
buf,
bsz,
dircfh->uperm);
}
static int vfs_ceph_ll_read(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
int64_t off,
uint64_t len,
char *buf)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_read: ino=%" PRIu64 " fd=%d off=%jd "
"len=%ju\n", cfh->iref.ino, cfh->fd, off, len);
return config->ceph_ll_read_fn(config->mount, cfh->fh, off, len, buf);
}
static int vfs_ceph_ll_write(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
int64_t off,
uint64_t len,
const char *data)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_write: ino=%" PRIu64 " fd=%d off=%jd "
"len=%ju\n", cfh->iref.ino, cfh->fd, off, len);
return config->ceph_ll_write_fn(config->mount, cfh->fh, off, len, data);
}
static off_t vfs_ceph_ll_lseek(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
off_t offset,
int whence)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_lseek: ino=%" PRIu64 " fd=%d offset=%jd "
"whence=%d\n", cfh->iref.ino, cfh->fd, offset, whence);
return config->ceph_ll_lseek_fn(config->mount, cfh->fh, offset, whence);
}
static int vfs_ceph_ll_fsync(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
int syncdataonly)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_fsync: ino=%" PRIu64 " fd=%d "
"syncdataonly=%d\n", cfh->iref.ino, cfh->fd, syncdataonly);
return config->ceph_ll_fsync_fn(config->mount, cfh->fh, syncdataonly);
}
static int vfs_ceph_ll_ftruncate(struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
int64_t size)
{
struct ceph_statx stx = {.stx_size = (uint64_t)size};
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_setattr: ino=%" PRIu64 " fd=%d size=%jd\n",
cfh->iref.ino, cfh->fd, size);
return config->ceph_ll_setattr_fn(config->mount,
cfh->iref.inode,
&stx,
CEPH_SETATTR_SIZE,
cfh->uperm);
}
static int vfs_ceph_ll_fallocate(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
int mode,
int64_t off,
int64_t len)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_fallocate: ino=%" PRIu64 " fd=%d off=%jd "
"len=%jd\n", cfh->iref.ino, cfh->fd, off, len);
return config->ceph_ll_fallocate_fn(config->mount, cfh->fh,
mode, off, len);
}
static int vfs_ceph_ll_link(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *dircfh,
const char *name,
const struct vfs_ceph_iref *iref)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_link: parent-ino=%" PRIu64 " name=%s\n",
dircfh->iref.ino, name);
return config->ceph_ll_link_fn(config->mount,
iref->inode,
dircfh->iref.inode,
name,
dircfh->uperm);
}
static int vfs_ceph_ll_rename(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *parent,
const char *name,
const struct vfs_ceph_fh *newparent,
const char *newname)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_rename: parent-ino=%" PRIu64
" name=%s newparent-ino=%" PRIu64 " newname=%s\n",
parent->iref.ino, name, newparent->iref.ino, newname);
return config->ceph_ll_rename_fn(config->mount,
parent->iref.inode,
name,
newparent->iref.inode,
newname,
newparent->uperm);
}
static int vfs_ceph_ll_mknod(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *parent,
const char *name,
mode_t mode,
dev_t rdev,
struct vfs_ceph_iref *iref)
{
struct ceph_statx stx = {.stx_ino = 0};
struct Inode *inode = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_mknod: parent-ino=%" PRIu64 " name=%s "
"mode=%o\n", parent->iref.ino, name, mode);
ret = config->ceph_ll_mknod_fn(config->mount,
parent->iref.inode,
name,
mode,
rdev,
&inode,
&stx,
CEPH_STATX_INO,
0,
parent->uperm);
if (ret == 0) {
iref->inode = inode;
iref->ino = stx.stx_ino;
iref->owner = true;
}
return ret;
}
static int vfs_ceph_ll_getxattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
const char *name,
void *value,
size_t size)
{
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_getxattr: ino=%" PRIu64 " name=%s\n",
iref->ino, name);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_getxattr_fn(config->mount,
iref->inode,
name,
value,
size,
uperm);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_fgetxattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
const char *name,
void *value,
size_t size)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_getxattr: ino=%" PRIu64 " name=%s\n",
cfh->iref.ino, name);
return config->ceph_ll_getxattr_fn(config->mount,
cfh->iref.inode,
name,
value,
size,
cfh->uperm);
}
static int vfs_ceph_ll_setxattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
const char *name,
const void *value,
size_t size,
int flags)
{
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_setxattr: ino=%" PRIu64 " name=%s "
"size=%zu\n", iref->ino, name, size);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_setxattr_fn(config->mount,
iref->inode,
name,
value,
size,
flags,
uperm);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_fsetxattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
const char *name,
const void *value,
size_t size,
int flags)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_setxattr: ino=%" PRIu64 " name=%s "
"size=%zu\n", cfh->iref.ino, name, size);
return config->ceph_ll_setxattr_fn(config->mount,
cfh->iref.inode,
name,
value,
size,
flags,
cfh->uperm);
}
static int vfs_ceph_ll_listxattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
char *list,
size_t buf_size,
size_t *list_size)
{
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_listxattr: ino=%" PRIu64 "\n", iref->ino);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_listxattr_fn(config->mount,
iref->inode,
list,
buf_size,
list_size,
uperm);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_flistxattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
char *list,
size_t buf_size,
size_t *list_size)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_listxattr: ino=%" PRIu64 "\n", cfh->iref.ino);
return config->ceph_ll_listxattr_fn(config->mount,
cfh->iref.inode,
list,
buf_size,
list_size,
cfh->uperm);
}
static int vfs_ceph_ll_removexattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_iref *iref,
const char *name)
{
struct UserPerm *uperm = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_removexattr: ino=%" PRIu64 " name=%s\n",
iref->ino, name);
uperm = vfs_ceph_userperm_new(config, handle->conn);
if (uperm == NULL) {
return -ENOMEM;
}
ret = config->ceph_ll_removexattr_fn(config->mount, iref->inode,
name, uperm);
vfs_ceph_userperm_del(config, uperm);
return ret;
}
static int vfs_ceph_ll_fremovexattr(const struct vfs_handle_struct *handle,
const struct vfs_ceph_fh *cfh,
const char *name)
{
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[ceph] ceph_ll_removexattr: ino=%" PRIu64 " name=%s\n",
cfh->iref.ino, name);
return config->ceph_ll_removexattr_fn(config->mount,
cfh->iref.inode,
name,
cfh->uperm);
}
/* Ceph Inode-refernce get/put wrappers */
static int vfs_ceph_iget(const struct vfs_handle_struct *handle,
uint64_t ino,
const char *name,
unsigned int flags,
struct vfs_ceph_iref *iref)
{
struct Inode *inode = NULL;
int ret = -1;
if (ino > CEPH_INO_ROOT) {
/* get-by-ino */
ret = vfs_ceph_ll_lookup_inode(handle, ino, &inode);
if (ret != 0) {
return ret;
}
} else {
/* get-by-path */
struct ceph_statx stx = {.stx_ino = 0};
ret = vfs_ceph_ll_walk(handle,
name,
&inode,
&stx,
CEPH_STATX_INO,
flags);
if (ret != 0) {
return ret;
}
ino = stx.stx_ino;
}
iref->inode = inode;
iref->ino = ino;
iref->owner = true;
DBG_DEBUG("[CEPH] iget: %s ino=%" PRIu64 "\n", name, iref->ino);
return 0;
}
static int vfs_ceph_iget_by_fname(const struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
struct vfs_ceph_iref *iref)
{
const char *name = smb_fname->base_name;
const char *cwd = NULL;
int ret = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
cwd = config->ceph_getcwd_fn(config->mount);
if (!strcmp(name, cwd)) {
ret = vfs_ceph_iget(handle, 0, "./", 0, iref);
} else {
ret = vfs_ceph_iget(handle, 0, name, 0, iref);
}
return ret;
}
static int vfs_ceph_igetl(const struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
struct vfs_ceph_iref *iref)
{
return vfs_ceph_iget(handle,
0,
smb_fname->base_name,
AT_SYMLINK_NOFOLLOW,
iref);
}
static int vfs_ceph_igetd(struct vfs_handle_struct *handle,
const struct files_struct *dirfsp,
struct vfs_ceph_iref *iref)
{
struct vfs_ceph_fh *dircfh = NULL;
int ret = -1;
/* case-1: already have reference to open directory; re-ref */
ret = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (ret == 0) {
iref->inode = dircfh->iref.inode;
iref->ino = dircfh->iref.ino;
iref->owner = false;
return 0;
}
/* case-2: resolve by current work-dir */
if (fsp_get_pathref_fd(dirfsp) == AT_FDCWD) {
return vfs_ceph_iget(handle, 0, ".", 0, iref);
}
/* case-3: resolve by parent dir and name */
return vfs_ceph_iget(handle,
dirfsp->file_id.inode,
dirfsp->fsp_name->base_name,
AT_SYMLINK_NOFOLLOW,
iref);
}
static int vfs_ceph_igetf(struct vfs_handle_struct *handle,
const struct files_struct *fsp,
struct vfs_ceph_iref *iref)
{
return vfs_ceph_iget(
handle, fsp->file_id.inode, fsp->fsp_name->base_name, 0, iref);
}
static void vfs_ceph_iput(const struct vfs_handle_struct *handle,
struct vfs_ceph_iref *iref)
{
if ((iref != NULL) && (iref->inode != NULL) && iref->owner) {
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return);
DBG_DEBUG("[ceph] ceph_ll_put: ino=%" PRIu64 "\n", iref->ino);
config->ceph_ll_put_fn(config->mount, iref->inode);
iref->inode = NULL;
}
}
/* Disk operations */
static uint64_t vfs_ceph_disk_free(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
uint64_t *bsize,
uint64_t *dfree,
uint64_t *dsize)
{
struct statvfs statvfs_buf = { 0 };
struct Inode *inode = NULL;
int ret;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
ret = config->ceph_ll_lookup_root_fn(config->mount, &inode);
if (ret != 0) {
DBG_DEBUG("[CEPH] ceph_ll_lookup_root returned %d\n", ret);
errno = -ret;
return (uint64_t)(-1);
}
ret = config->ceph_ll_statfs_fn(config->mount, inode, &statvfs_buf);
config->ceph_ll_put_fn(config->mount, inode);
if (ret != 0) {
DBG_DEBUG("[CEPH] ceph_ll_statfs returned %d\n", ret);
errno = -ret;
return (uint64_t)(-1);
}
*bsize = (uint64_t)statvfs_buf.f_bsize;
*dfree = (uint64_t)statvfs_buf.f_bavail;
*dsize = (uint64_t)statvfs_buf.f_blocks;
DBG_DEBUG("[CEPH] bsize: %llu, dfree: %llu, dsize: %llu\n",
llu(*bsize),
llu(*dfree),
llu(*dsize));
return *dfree;
}
static int vfs_ceph_statvfs(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
struct vfs_statvfs_struct *statbuf)
{
struct statvfs statvfs_buf = { 0 };
struct vfs_ceph_iref iref = {0};
int ret;
ret = vfs_ceph_iget_by_fname(handle, smb_fname, &iref);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_statfs(handle, &iref, &statvfs_buf);
if (ret != 0) {
goto out;
}
statbuf->OptimalTransferSize = statvfs_buf.f_frsize;
statbuf->BlockSize = statvfs_buf.f_bsize;
statbuf->TotalBlocks = statvfs_buf.f_blocks;
statbuf->BlocksAvail = statvfs_buf.f_bfree;
statbuf->UserBlocksAvail = statvfs_buf.f_bavail;
statbuf->TotalFileNodes = statvfs_buf.f_files;
statbuf->FreeFileNodes = statvfs_buf.f_ffree;
statbuf->FsIdentifier = statvfs_buf.f_fsid;
statbuf->FsCapabilities =
FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
DBG_DEBUG("[CEPH] f_bsize: %ld, f_blocks: %ld, f_bfree: %ld, "
"f_bavail: %ld\n",
(long int)statvfs_buf.f_bsize,
(long int)statvfs_buf.f_blocks,
(long int)statvfs_buf.f_bfree,
(long int)statvfs_buf.f_bavail);
out:
vfs_ceph_iput(handle, &iref);
return status_code(ret);
}
static uint32_t vfs_ceph_fs_capabilities(
struct vfs_handle_struct *handle,
enum timestamp_set_resolution *p_ts_res)
{
uint32_t caps = vfs_get_fs_capabilities(handle->conn, p_ts_res);
return caps;
}
/* Directory operations */
static DIR *vfs_ceph_fdopendir(struct vfs_handle_struct *handle,
struct files_struct *fsp,
const char *mask,
uint32_t attributes)
{
int ret = 0;
void *result = NULL;
struct vfs_ceph_fh *cfh = NULL;
DBG_DEBUG("[CEPH] fdopendir(%p, %p)\n", handle, fsp);
ret = vfs_ceph_fetch_fh(handle, fsp, &cfh);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_opendir(handle, cfh);
if (ret != 0) {
goto out;
}
result = &cfh->dirp;
out:
DBG_DEBUG("[CEPH] fdopendir(...) = %d\n", ret);
if (ret != 0) {
errno = -ret;
}
return (DIR *)result;
}
static struct dirent *vfs_ceph_readdir(struct vfs_handle_struct *handle,
struct files_struct *dirfsp,
DIR *dirp)
{
struct vfs_ceph_fh *dircfh = (struct vfs_ceph_fh *)dirp;
struct dirent *result = NULL;
int saved_errno = errno;
int ret = -1;
DBG_DEBUG("[CEPH] readdir(%p, %p)\n", handle, dirp);
result = vfs_ceph_get_fh_dirent(dircfh);
if (result == NULL) {
/* Memory allocation failure */
return NULL;
}
/* The low-level call uses 'dircfh->de' which is now 'result' */
ret = vfs_ceph_ll_readdir(handle, dircfh);
if (ret < 0) {
/* Error case */
DBG_DEBUG("[CEPH] readdir(...) = %d\n", ret);
vfs_ceph_put_fh_dirent(dircfh);
result = NULL;
saved_errno = ret;
} else if (ret == 0) {
/* End of directory stream */
vfs_ceph_put_fh_dirent(dircfh);
result = NULL;
} else {
/* Normal case */
DBG_DEBUG("[CEPH] readdir(...) = %p\n", result);
}
errno = saved_errno;
return result;
}
static void vfs_ceph_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
{
const struct vfs_ceph_fh *dircfh = (const struct vfs_ceph_fh *)dirp;
DBG_DEBUG("[CEPH] rewinddir(%p, %p)\n", handle, dirp);
vfs_ceph_ll_rewinddir(handle, dircfh);
}
static int vfs_ceph_mkdirat(struct vfs_handle_struct *handle,
files_struct *dirfsp,
const struct smb_filename *smb_fname,
mode_t mode)
{
int result = -1;
const char *name = smb_fname->base_name;
struct vfs_ceph_fh *dircfh = NULL;
struct vfs_ceph_iref iref = {0};
DBG_DEBUG("[CEPH] mkdirat(%p, %s)\n", handle, name);
result = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_mkdirat(handle, dircfh, name, mode, &iref);
vfs_ceph_iput(handle, &iref);
out:
DBG_DEBUG("[CEPH] mkdirat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_closedir(struct vfs_handle_struct *handle, DIR *dirp)
{
int result;
struct vfs_ceph_fh *cfh = (struct vfs_ceph_fh *)dirp;
DBG_DEBUG("[CEPH] closedir(%p, %p)\n", handle, dirp);
result = vfs_ceph_ll_releasedir(handle, cfh);
vfs_ceph_release_fh(cfh);
vfs_ceph_remove_fh(handle, cfh->fsp);
DBG_DEBUG("[CEPH] closedir(...) = %d\n", result);
return status_code(result);
}
/* File operations */
static int vfs_ceph_openat(struct vfs_handle_struct *handle,
const struct files_struct *dirfsp,
const struct smb_filename *smb_fname,
files_struct *fsp,
const struct vfs_open_how *how)
{
struct vfs_ceph_iref diref = {0};
struct vfs_ceph_fh *cfh = NULL;
int flags = how->flags;
mode_t mode = how->mode;
int result = -ENOENT;
if (how->resolve != 0) {
errno = ENOSYS;
return -1;
}
if (smb_fname->stream_name) {
errno = ENOENT;
return -1;
}
#ifdef O_PATH
if (fsp->fsp_flags.is_pathref) {
flags |= O_PATH;
}
#endif
DBG_DEBUG("[CEPH] openat(%p, %p, %d, %d)\n", handle, fsp, flags, mode);
result = vfs_ceph_igetd(handle, dirfsp, &diref);
if (result != 0) {
goto out;
}
result = vfs_ceph_add_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
if (flags & O_CREAT) {
result = vfs_ceph_ll_create(handle,
&diref,
smb_fname->base_name,
mode,
flags,
cfh);
if (result != 0) {
vfs_ceph_remove_fh(handle, fsp);
goto out;
}
} else {
result = vfs_ceph_ll_lookup(handle,
&diref,
smb_fname->base_name,
&cfh->iref);
if (result != 0) {
vfs_ceph_remove_fh(handle, fsp);
goto out;
}
#ifdef O_PATH
if (flags & O_PATH) {
/*
* Special case: open with O_PATH: we already have
* Cephfs' Inode* from the above lookup so there is no
* need to go via expensive ceph_ll_open for Fh*.
*/
cfh->o_flags = flags;
vfs_ceph_assign_fh_fd(cfh);
result = cfh->fd;
goto out;
}
#endif
result = vfs_ceph_ll_open(handle, cfh, flags);
if (result != 0) {
vfs_ceph_remove_fh(handle, fsp);
goto out;
}
}
result = cfh->fd;
out:
vfs_ceph_iput(handle, &diref);
fsp->fsp_flags.have_proc_fds = false;
DBG_DEBUG("[CEPH] open(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_close(struct vfs_handle_struct *handle, files_struct *fsp)
{
int result;
struct vfs_ceph_fh *cfh = NULL;
DBG_DEBUG("[CEPH] close(%p, %p)\n", handle, fsp);
result = vfs_ceph_fetch_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_release_fh(cfh);
vfs_ceph_remove_fh(handle, fsp);
out:
DBG_DEBUG("[CEPH] close(...) = %d\n", result);
return status_code(result);
}
static ssize_t vfs_ceph_pread(struct vfs_handle_struct *handle,
files_struct *fsp,
void *data,
size_t n,
off_t offset)
{
struct vfs_ceph_fh *cfh = NULL;
ssize_t result;
DBG_DEBUG("[CEPH] pread(%p, %p, %p, %llu, %llu)\n",
handle,
fsp,
data,
llu(n),
llu(offset));
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_read(handle, cfh, offset, n, data);
out:
DBG_DEBUG("[CEPH] pread(...) = %llu\n", llu(result));
return lstatus_code(result);
}
struct vfs_ceph_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 *vfs_ceph_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 vfs_ceph_fh *cfh = NULL;
struct tevent_req *req = NULL;
struct vfs_ceph_pread_state *state = NULL;
int ret = -1;
DBG_DEBUG("[CEPH] pread_send(%p, %p, %p, %zu, %zd)\n",
handle,
fsp,
data,
n,
offset);
req = tevent_req_create(mem_ctx, &state, struct vfs_ceph_pread_state);
if (req == NULL) {
return NULL;
}
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
tevent_req_error(req, -ret);
return tevent_req_post(req, ev);
}
ret = vfs_ceph_ll_read(handle, cfh, offset, n, data);
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 vfs_ceph_pread_recv(struct tevent_req *req,
struct vfs_aio_state *vfs_aio_state)
{
struct vfs_ceph_pread_state *state =
tevent_req_data(req, struct vfs_ceph_pread_state);
DBG_DEBUG("[CEPH] pread_recv: bytes_read=%zd\n", state->bytes_read);
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 vfs_ceph_pwrite(struct vfs_handle_struct *handle,
files_struct *fsp,
const void *data,
size_t n,
off_t offset)
{
struct vfs_ceph_fh *cfh = NULL;
ssize_t result;
DBG_DEBUG("[CEPH] pwrite(%p, %p, %p, %llu, %llu)\n",
handle,
fsp,
data,
llu(n),
llu(offset));
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_write(handle, cfh, offset, n, data);
out:
DBG_DEBUG("[CEPH] pwrite(...) = %llu\n", llu(result));
return lstatus_code(result);
}
struct vfs_ceph_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 *vfs_ceph_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 vfs_ceph_fh *cfh = NULL;
struct tevent_req *req = NULL;
struct vfs_ceph_pwrite_state *state = NULL;
int ret = -1;
DBG_DEBUG("[CEPH] pwrite_send(%p, %p, %p, %zu, %zd)\n",
handle,
fsp,
data,
n,
offset);
req = tevent_req_create(mem_ctx, &state, struct vfs_ceph_pwrite_state);
if (req == NULL) {
return NULL;
}
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
tevent_req_error(req, -ret);
return tevent_req_post(req, ev);
}
ret = vfs_ceph_ll_write(handle, cfh, offset, n, data);
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 vfs_ceph_pwrite_recv(struct tevent_req *req,
struct vfs_aio_state *vfs_aio_state)
{
struct vfs_ceph_pwrite_state *state =
tevent_req_data(req, struct vfs_ceph_pwrite_state);
DBG_DEBUG("[CEPH] pwrite_recv: bytes_written=%zd\n",
state->bytes_written);
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 vfs_ceph_lseek(struct vfs_handle_struct *handle,
files_struct *fsp,
off_t offset,
int whence)
{
struct vfs_ceph_fh *cfh = NULL;
intmax_t result = 0;
DBG_DEBUG(
"[CEPH] lseek(%p, %p, %zd, %d)\n", handle, fsp, offset, whence);
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_lseek(handle, cfh, offset, whence);
out:
return lstatus_code(result);
}
static ssize_t vfs_ceph_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 libcephfs is in user space.
*/
DBG_DEBUG("[CEPH] sendfile(%p, %d, %p, %p, %zd, %zu)\n",
handle,
tofd,
fromfsp,
hdr,
offset,
n);
errno = ENOTSUP;
return -1;
}
static ssize_t vfs_ceph_recvfile(struct vfs_handle_struct *handle,
int fromfd,
files_struct *tofsp,
off_t offset,
size_t n)
{
/*
* We cannot support recvfile because libcephfs is in user space.
*/
DBG_DEBUG("[CEPH] recvfile(%p, %d, %p, %zd, %zu)\n",
handle,
fromfd,
tofsp,
offset,
n);
errno = ENOTSUP;
return -1;
}
static int vfs_ceph_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,
const struct vfs_rename_how *how)
{
struct vfs_ceph_fh *src_dircfh = NULL;
struct vfs_ceph_fh *dst_dircfh = NULL;
int result = -1;
DBG_DEBUG("[CEPH] renameat(%p, %p, %s, %p, %s)\n",
handle,
srcfsp,
smb_fname_src->base_name,
dst_dircfh,
smb_fname_dst->base_name);
if (smb_fname_src->stream_name || smb_fname_dst->stream_name) {
errno = ENOENT;
return result;
}
if (how->flags != 0) {
errno = EINVAL;
return -1;
}
result = vfs_ceph_fetch_fh(handle, srcfsp, &src_dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_fetch_fh(handle, dstfsp, &dst_dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_rename(handle,
src_dircfh,
smb_fname_src->base_name,
dst_dircfh,
smb_fname_dst->base_name);
out:
return status_code(result);
}
/*
* Fake up an async ceph fsync by calling the synchronous API.
*/
static struct tevent_req *vfs_ceph_fsync_send(struct vfs_handle_struct *handle,
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
files_struct *fsp)
{
struct vfs_ceph_fh *cfh = NULL;
struct tevent_req *req = NULL;
struct vfs_aio_state *state = NULL;
int ret = -1;
DBG_DEBUG("[CEPH] fsync_send(%p, %p)\n", handle, fsp);
req = tevent_req_create(mem_ctx, &state, struct vfs_aio_state);
if (req == NULL) {
return NULL;
}
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
tevent_req_error(req, -ret);
return tevent_req_post(req, ev);
}
/* Make sync call. */
ret = vfs_ceph_ll_fsync(handle, cfh, 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 vfs_ceph_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] fsync_recv: error=%d duration=%" PRIu64 "\n",
state->error,
state->duration);
if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
return -1;
}
*vfs_aio_state = *state;
return 0;
}
static int vfs_ceph_stat(struct vfs_handle_struct *handle,
struct smb_filename *smb_fname)
{
int result = -1;
struct vfs_ceph_iref iref = {0};
DBG_DEBUG("[CEPH] stat(%p, %s)\n",
handle,
smb_fname_str_dbg(smb_fname));
if (smb_fname->stream_name) {
errno = ENOENT;
return result;
}
result = vfs_ceph_iget_by_fname(handle, smb_fname, &iref);
if (result != 0) {
goto out;
}
DBG_DEBUG("[CEPH] stat: ino=%" PRIu64 "\n", iref.ino);
result = vfs_ceph_ll_getattr(handle, &iref, &smb_fname->st);
if (result != 0) {
goto out;
}
DBG_DEBUG("[CEPH] mode = 0x%x\n", smb_fname->st.st_ex_mode);
out:
vfs_ceph_iput(handle, &iref);
return status_code(result);
}
static int vfs_ceph_fstat(struct vfs_handle_struct *handle,
files_struct *fsp,
SMB_STRUCT_STAT *sbuf)
{
int result = -1;
struct vfs_ceph_fh *cfh = NULL;
DBG_DEBUG("[CEPH] fstat(%p)\n", handle);
result = vfs_ceph_fetch_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_getattr2(handle, &cfh->iref, cfh->uperm, sbuf);
if (result != 0) {
goto out;
}
DBG_DEBUG("[CEPH] mode = 0x%x\n", sbuf->st_ex_mode);
out:
DBG_DEBUG("[CEPH] fstat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_fstatat(struct vfs_handle_struct *handle,
const struct files_struct *dirfsp,
const struct smb_filename *smb_fname,
SMB_STRUCT_STAT *sbuf,
int flags)
{
int result = -1;
struct vfs_ceph_iref iref = {0};
struct vfs_ceph_fh *dircfh = NULL;
DBG_DEBUG("[CEPH] fstatat(%p, %s)\n", handle, smb_fname->base_name);
result = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_lookupat(handle,
dircfh,
smb_fname->base_name,
&iref);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_getattr2(handle, &iref, dircfh->uperm, sbuf);
if (result != 0) {
goto out;
}
out:
vfs_ceph_iput(handle, &iref);
DBG_DEBUG("[CEPH] fstatat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_lstat(struct vfs_handle_struct *handle,
struct smb_filename *smb_fname)
{
int result = -1;
struct vfs_ceph_iref iref = {0};
DBG_DEBUG("[CEPH] lstat(%p, %s)\n",
handle,
smb_fname_str_dbg(smb_fname));
if (smb_fname->stream_name) {
errno = ENOENT;
return result;
}
result = vfs_ceph_igetl(handle, smb_fname, &iref);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_getattr(handle, &iref, &smb_fname->st);
if (result != 0) {
goto out;
}
out:
vfs_ceph_iput(handle, &iref);
DBG_DEBUG("[CEPH] lstat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_fntimes(struct vfs_handle_struct *handle,
files_struct *fsp,
struct smb_file_time *ft)
{
struct vfs_ceph_fh *cfh = NULL;
int result;
result = vfs_ceph_fetch_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_futimes(handle, cfh, ft);
if (result != 0) {
goto out;
}
if (!is_omit_timespec(&ft->create_time)) {
set_create_timespec_ea(fsp, ft->create_time);
}
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);
out:
return status_code(result);
}
static int vfs_ceph_unlinkat(struct vfs_handle_struct *handle,
struct files_struct *dirfsp,
const struct smb_filename *smb_fname,
int flags)
{
struct vfs_ceph_fh *dircfh = NULL;
const char *name = smb_fname->base_name;
int result = -1;
DBG_DEBUG("[CEPH] unlinkat(%p, %s)\n",
handle,
smb_fname_str_dbg(smb_fname));
if (smb_fname->stream_name) {
errno = ENOENT;
return result;
}
result = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (result != 0) {
goto out;
}
if (flags & AT_REMOVEDIR) {
result = vfs_ceph_ll_rmdir(handle, dircfh, name);
} else {
result = vfs_ceph_ll_unlinkat(handle, dircfh, name);
}
out:
DBG_DEBUG("[CEPH] unlinkat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_fchmod(struct vfs_handle_struct *handle,
files_struct *fsp,
mode_t mode)
{
int result;
struct vfs_ceph_fh *cfh = NULL;
DBG_DEBUG("[CEPH] fchmod(%p, %p, %d)\n", handle, fsp, mode);
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_fchmod(handle, cfh, mode);
out:
DBG_DEBUG("[CEPH] fchmod(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_fchown(struct vfs_handle_struct *handle,
files_struct *fsp,
uid_t uid,
gid_t gid)
{
int result;
struct vfs_ceph_fh *cfh = NULL;
DBG_DEBUG("[CEPH] fchown(%p, %p, %d, %d)\n", handle, fsp, uid, gid);
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_fchown(handle, cfh, uid, gid);
out:
DBG_DEBUG("[CEPH] fchown(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_lchown(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
uid_t uid,
gid_t gid)
{
int result;
struct vfs_ceph_iref iref = {0};
DBG_DEBUG("[CEPH] lchown(%p, %s, %d, %d)\n",
handle,
smb_fname->base_name,
uid,
gid);
result = vfs_ceph_igetl(handle, smb_fname, &iref);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_chown(handle, &iref, uid, gid);
vfs_ceph_iput(handle, &iref);
out:
DBG_DEBUG("[CEPH] lchown(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_chdir(struct vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
int result = -1;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return -ENOMEM);
DBG_DEBUG("[CEPH] chdir(%p, %s)\n", handle, smb_fname->base_name);
result = config->ceph_chdir_fn(config->mount, smb_fname->base_name);
DBG_DEBUG("[CEPH] chdir(...) = %d\n", result);
return status_code(result);
}
static struct smb_filename *vfs_ceph_getwd(struct vfs_handle_struct *handle,
TALLOC_CTX *ctx)
{
const char *cwd = NULL;
struct vfs_ceph_config *config = NULL;
SMB_VFS_HANDLE_GET_DATA(handle, config, struct vfs_ceph_config,
return NULL);
cwd = config->ceph_getcwd_fn(config->mount);
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;
struct vfs_ceph_fh *cfh = NULL;
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;
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
return status_code(result);
}
/* Shrink - just ftruncate. */
if (pst->st_ex_size > len) {
result = vfs_ceph_ll_ftruncate(handle, cfh, len);
return status_code(result);
}
space_to_write = len - pst->st_ex_size;
result = vfs_ceph_ll_fallocate(
handle, cfh, 0, pst->st_ex_size, space_to_write);
return status_code(result);
}
static int vfs_ceph_ftruncate(struct vfs_handle_struct *handle,
files_struct *fsp,
off_t len)
{
struct vfs_ceph_fh *cfh = NULL;
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 = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_ftruncate(handle, cfh, len);
out:
return status_code(result);
}
static int vfs_ceph_fallocate(struct vfs_handle_struct *handle,
struct files_struct *fsp,
uint32_t mode,
off_t offset,
off_t len)
{
struct vfs_ceph_fh *cfh = NULL;
int result;
DBG_DEBUG("[CEPH] fallocate(%p, %p, %u, %llu, %llu\n",
handle, fsp, mode, llu(offset), llu(len));
result = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (result != 0) {
goto out;
}
/* unsupported mode flags are rejected by libcephfs */
result = vfs_ceph_ll_fallocate(handle, cfh, mode, offset, len);
out:
DBG_DEBUG("[CEPH] fallocate(...) = %d\n", result);
return status_code(result);
}
static bool vfs_ceph_lock(struct vfs_handle_struct *handle,
files_struct *fsp,
int op,
off_t offset,
off_t count,
int type)
{
DBG_DEBUG("[CEPH] lock(%p, %p, %d, %zd, %zd, %d)\n",
handle,
fsp,
op,
offset,
count,
type);
return true;
}
static int vfs_ceph_filesystem_sharemode(struct vfs_handle_struct *handle,
files_struct *fsp,
uint32_t share_access,
uint32_t access_mask)
{
DBG_ERR("[CEPH] filesystem sharemodes unsupported! Consider setting "
"\"kernel share modes = no\"\n");
return vfs_not_implemented_filesystem_sharemode(handle,
fsp,
share_access,
access_mask);
}
static int vfs_ceph_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 vfs_ceph_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;
}
static int vfs_ceph_symlinkat(struct vfs_handle_struct *handle,
const struct smb_filename *link_target,
struct files_struct *dirfsp,
const struct smb_filename *new_smb_fname)
{
struct vfs_ceph_iref iref = {0};
struct vfs_ceph_fh *dircfh = NULL;
int result = -1;
DBG_DEBUG("[CEPH] symlinkat(%p, %s, %s)\n",
handle,
link_target->base_name,
new_smb_fname->base_name);
result = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_symlinkat(handle,
dircfh,
new_smb_fname->base_name,
link_target->base_name,
&iref);
if (result != 0) {
goto out;
}
vfs_ceph_iput(handle, &iref);
out:
DBG_DEBUG("[CEPH] symlinkat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_readlinkat(struct vfs_handle_struct *handle,
const struct files_struct *dirfsp,
const struct smb_filename *smb_fname,
char *buf,
size_t bufsiz)
{
int result = -1;
struct vfs_ceph_fh *dircfh = NULL;
DBG_DEBUG("[CEPH] readlinkat(%p, %s, %p, %llu)\n",
handle,
smb_fname->base_name,
buf,
llu(bufsiz));
result = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (result != 0) {
goto out;
}
if (strcmp(smb_fname->base_name, "") != 0) {
struct vfs_ceph_iref iref = {0};
result = vfs_ceph_ll_lookupat(handle,
dircfh,
smb_fname->base_name,
&iref);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_readlinkat(handle,
dircfh,
&iref,
buf,
bufsiz);
vfs_ceph_iput(handle, &iref);
} else {
result = vfs_ceph_ll_readlinkat(handle,
dircfh,
&dircfh->iref,
buf,
bufsiz);
}
out:
DBG_DEBUG("[CEPH] readlinkat(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_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 vfs_ceph_fh *src_dircfh = NULL;
struct vfs_ceph_fh *dst_dircfh = NULL;
struct vfs_ceph_iref iref = {0};
const char *name = old_smb_fname->base_name;
const char *newname = new_smb_fname->base_name;
int result = -1;
/* Prevent special linkat modes until it is required by VFS layer */
if (flags & (AT_EMPTY_PATH | AT_SYMLINK_FOLLOW)) {
errno = ENOTSUP;
return -1;
}
DBG_DEBUG("[CEPH] link(%p, %s, %s)\n", handle, name, newname);
result = vfs_ceph_fetch_fh(handle, srcfsp, &src_dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_fetch_fh(handle, dstfsp, &dst_dircfh);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_lookupat(handle, src_dircfh, name, &iref);
if (result != 0) {
goto out;
}
result = vfs_ceph_ll_link(handle, dst_dircfh, newname, &iref);
if (result != 0) {
goto out;
}
vfs_ceph_iput(handle, &iref);
out:
DBG_DEBUG("[CEPH] link(...) = %d\n", result);
return status_code(result);
}
static int vfs_ceph_mknodat(struct vfs_handle_struct *handle,
files_struct *dirfsp,
const struct smb_filename *smb_fname,
mode_t mode,
SMB_DEV_T dev)
{
struct vfs_ceph_iref iref = {0};
struct vfs_ceph_fh *dircfh = NULL;
const char *name = smb_fname->base_name;
int result = -1;
result = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (result != 0) {
goto out;
}
DBG_DEBUG("[CEPH] mknodat(%p, %s)\n", handle, name);
result = vfs_ceph_ll_mknod(handle, dircfh, name, mode, dev, &iref);
if (result != 0) {
goto out;
}
vfs_ceph_iput(handle, &iref);
out:
DBG_DEBUG("[CEPH] mknodat(...) = %d\n", result);
return status_code(result);
}
/*
* This is a simple version of real-path ... a better version is needed to
* ask libcephfs about symbolic links.
*/
static struct smb_filename *vfs_ceph_realpath(struct vfs_handle_struct *handle,
TALLOC_CTX *ctx,
const struct smb_filename *smb_fname)
{
char *result = NULL;
const char *cwd = handle->conn->cwd_fsp->fsp_name->base_name;
const char *path = smb_fname->base_name;
size_t len = strlen(path);
struct smb_filename *result_fname = NULL;
if (path[0] == '/') {
result = talloc_strdup(ctx, path);
} else if ((len >= 2) && (path[0] == '.') && (path[1] == '/')) {
if (len == 2) {
result = talloc_strdup(ctx, cwd);
} else {
result = talloc_asprintf(ctx, "%s/%s", cwd, &path[2]);
}
} else {
result = talloc_asprintf(ctx, "%s/%s", cwd, path);
}
if (result == NULL) {
return NULL;
}
DBG_DEBUG("[CEPH] realpath(%p, %s) = %s\n", handle, path, result);
result_fname = synthetic_smb_fname(ctx, result, NULL, NULL, 0, 0);
TALLOC_FREE(result);
return result_fname;
}
static NTSTATUS vfs_ceph_get_real_filename_at(
struct vfs_handle_struct *handle,
struct files_struct *dirfsp,
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.
*/
return NT_STATUS_NOT_SUPPORTED;
}
static const char *vfs_ceph_connectpath(
struct vfs_handle_struct *handle,
const struct files_struct *dirfsp,
const struct smb_filename *smb_fname)
{
return handle->conn->connectpath;
}
static NTSTATUS vfs_ceph_fget_dos_attributes(struct vfs_handle_struct *handle,
struct files_struct *fsp,
uint32_t *dosmode)
{
struct timespec saved_btime = fsp->fsp_name->st.st_ex_btime;
NTSTATUS status;
status = fget_ea_dos_attribute(fsp, dosmode);
/*
* Restore previously stored btime from statx timestamps as it should be
* the only source of truth. create_time from dos attribute, if any, may
* have older values which isn't trustworthy to be looked at for other
* open file handle operations.
*/
fsp->fsp_name->st.st_ex_btime = saved_btime;
return status;
}
static NTSTATUS vfs_ceph_fset_dos_attributes(struct vfs_handle_struct *handle,
struct files_struct *fsp,
uint32_t dosmode)
{
struct timespec saved_btime = fsp->fsp_name->st.st_ex_btime;
NTSTATUS status;
status = set_ea_dos_attribute(handle->conn, fsp->fsp_name, dosmode);
/*
* Restore previously stored btime from statx timestamps. This is done
* to ensure that we have the exact btime in fsp stat information while
* the file handle is still open since the create_time stored as part of
* dos attributes can loose its precision when converted back to btime.
*/
fsp->fsp_name->st.st_ex_btime = saved_btime;
return status;
}
/****************************************************************
Extended attribute operations.
*****************************************************************/
static ssize_t vfs_ceph_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));
if (!fsp->fsp_flags.is_pathref) {
struct vfs_ceph_fh *cfh = NULL;
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_fgetxattr(handle, cfh, name, value, size);
} else {
struct vfs_ceph_iref iref = {0};
ret = vfs_ceph_igetf(handle, fsp, &iref);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_getxattr(handle, &iref, name, value, size);
vfs_ceph_iput(handle, &iref);
}
out:
DBG_DEBUG("[CEPH] fgetxattr(...) = %d\n", ret);
return lstatus_code(ret);
}
static ssize_t vfs_ceph_flistxattr(struct vfs_handle_struct *handle,
struct files_struct *fsp,
char *list,
size_t size)
{
size_t list_size = 0;
int ret;
DBG_DEBUG("[CEPH] flistxattr(%p, %p, %p, %llu)\n",
handle, fsp, list, llu(size));
if (!fsp->fsp_flags.is_pathref) {
struct vfs_ceph_fh *cfh = NULL;
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_flistxattr(handle,
cfh,
list,
size,
&list_size);
if (ret != 0) {
goto out;
}
} else {
struct vfs_ceph_iref iref = {0};
ret = vfs_ceph_igetf(handle, fsp, &iref);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_listxattr(handle,
&iref,
list,
size,
&list_size);
if (ret != 0) {
goto out;
}
vfs_ceph_iput(handle, &iref);
}
ret = (int)list_size;
out:
DBG_DEBUG("[CEPH] flistxattr(...) = %d\n", ret);
return lstatus_code(ret);
}
static int vfs_ceph_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) {
struct vfs_ceph_fh *cfh = NULL;
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_fremovexattr(handle, cfh, name);
} else {
struct vfs_ceph_iref iref = {0};
ret = vfs_ceph_igetf(handle, fsp, &iref);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_removexattr(handle, &iref, name);
vfs_ceph_iput(handle, &iref);
}
out:
DBG_DEBUG("[CEPH] fremovexattr(...) = %d\n", ret);
return status_code(ret);
}
static int vfs_ceph_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) {
struct vfs_ceph_fh *cfh = NULL;
ret = vfs_ceph_fetch_io_fh(handle, fsp, &cfh);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_fsetxattr(handle,
cfh,
name,
value,
size,
flags);
} else {
struct vfs_ceph_iref iref = {0};
ret = vfs_ceph_igetf(handle, fsp, &iref);
if (ret != 0) {
goto out;
}
ret = vfs_ceph_ll_setxattr(handle,
&iref,
name,
value,
size,
flags);
vfs_ceph_iput(handle, &iref);
}
out:
DBG_DEBUG("[CEPH] fsetxattr(...) = %d\n", ret);
return status_code(ret);
}
static NTSTATUS vfs_ceph_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 vfs_ceph_fh *dircfh = NULL;
struct vfs_ceph_iref iref = {0};
ret = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (ret != 0) {
status = map_nt_error_from_unix(-ret);
goto out;
}
/* Form the msdfs_link contents */
msdfs_link = msdfs_link_string(frame,
reflist,
referral_count);
if (msdfs_link == NULL) {
goto out;
}
ret = vfs_ceph_ll_symlinkat(handle,
dircfh,
smb_fname->base_name,
msdfs_link,
&iref);
if (ret == 0) {
vfs_ceph_iput(handle, &iref);
status = NT_STATUS_OK;
} else {
status = map_nt_error_from_unix(-ret);
}
out:
DBG_DEBUG("[CEPH] create_dfs_pathat(...) = %s\n", 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 vfs_ceph_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 = 0;
char *link_target = NULL;
int referral_len = 0;
bool ok;
#if defined(HAVE_BROKEN_READLINK)
char link_target_buf[PATH_MAX];
#else
char link_target_buf[7];
#endif
SMB_STRUCT_STAT st = {0};
struct vfs_ceph_fh *dircfh = NULL;
struct vfs_ceph_iref iref = {0};
int ret;
if (is_named_stream(smb_fname)) {
status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
goto out;
}
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 out;
}
}
ret = vfs_ceph_fetch_fh(handle, dirfsp, &dircfh);
if (ret != 0) {
status = map_nt_error_from_unix(-ret);
goto out;
}
ret = vfs_ceph_ll_lookupat2(handle,
dircfh,
smb_fname->base_name,
&iref,
&st);
if (ret != 0) {
status = map_nt_error_from_unix(-ret);
goto out;
}
if (!S_ISLNK(st.st_ex_mode)) {
DBG_INFO("%s is not a link.\n", smb_fname->base_name);
status = NT_STATUS_OBJECT_TYPE_MISMATCH;
goto out;
}
ret = vfs_ceph_ll_readlinkat(handle,
dircfh,
&iref,
link_target,
bufsize - 1);
if (ret < 0) {
DBG_ERR("Error reading msdfs link %s: %d\n",
smb_fname->base_name, ret);
status = map_nt_error_from_unix(-ret);
goto out;
}
referral_len = ret;
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 out;
}
status = NT_STATUS_OK;
if (ppreflist == NULL && preferral_count == NULL) {
/* Early return for checking if this is a DFS link. */
goto out;
}
ok = parse_msdfs_symlink(mem_ctx,
lp_msdfs_shuffle_referrals(SNUM(handle->conn)),
link_target,
ppreflist,
preferral_count);
if (!ok) {
status = NT_STATUS_NO_MEMORY;
}
out:
DBG_DEBUG("[CEPH] read_dfs_pathat(...) = %s\n", nt_errstr(status));
vfs_ceph_iput(handle, &iref);
if ((link_target != NULL) && (link_target != link_target_buf)) {
TALLOC_FREE(link_target);
}
if (NT_STATUS_IS_OK(status)) {
memcpy(&smb_fname->st, &st, sizeof(smb_fname->st));
}
return status;
}
static struct vfs_fn_pointers ceph_new_fns = {
/* Disk operations */
.connect_fn = vfs_ceph_connect,
.disconnect_fn = vfs_ceph_disconnect,
.disk_free_fn = vfs_ceph_disk_free,
.get_quota_fn = vfs_not_implemented_get_quota,
.set_quota_fn = vfs_not_implemented_set_quota,
.statvfs_fn = vfs_ceph_statvfs,
.fs_capabilities_fn = vfs_ceph_fs_capabilities,
/* Directory operations */
.fdopendir_fn = vfs_ceph_fdopendir,
.readdir_fn = vfs_ceph_readdir,
.rewind_dir_fn = vfs_ceph_rewinddir,
.mkdirat_fn = vfs_ceph_mkdirat,
.closedir_fn = vfs_ceph_closedir,
/* File operations */
.create_dfs_pathat_fn = vfs_ceph_create_dfs_pathat,
.read_dfs_pathat_fn = vfs_ceph_read_dfs_pathat,
.openat_fn = vfs_ceph_openat,
.close_fn = vfs_ceph_close,
.pread_fn = vfs_ceph_pread,
.pread_send_fn = vfs_ceph_pread_send,
.pread_recv_fn = vfs_ceph_pread_recv,
.pwrite_fn = vfs_ceph_pwrite,
.pwrite_send_fn = vfs_ceph_pwrite_send,
.pwrite_recv_fn = vfs_ceph_pwrite_recv,
.lseek_fn = vfs_ceph_lseek,
.sendfile_fn = vfs_ceph_sendfile,
.recvfile_fn = vfs_ceph_recvfile,
.renameat_fn = vfs_ceph_renameat,
.fsync_send_fn = vfs_ceph_fsync_send,
.fsync_recv_fn = vfs_ceph_fsync_recv,
.stat_fn = vfs_ceph_stat,
.fstat_fn = vfs_ceph_fstat,
.lstat_fn = vfs_ceph_lstat,
.fstatat_fn = vfs_ceph_fstatat,
.unlinkat_fn = vfs_ceph_unlinkat,
.fchmod_fn = vfs_ceph_fchmod,
.fchown_fn = vfs_ceph_fchown,
.lchown_fn = vfs_ceph_lchown,
.chdir_fn = vfs_ceph_chdir,
.getwd_fn = vfs_ceph_getwd,
.fntimes_fn = vfs_ceph_fntimes,
.ftruncate_fn = vfs_ceph_ftruncate,
.fallocate_fn = vfs_ceph_fallocate,
.lock_fn = vfs_ceph_lock,
.filesystem_sharemode_fn = vfs_ceph_filesystem_sharemode,
.fcntl_fn = vfs_ceph_fcntl,
.linux_setlease_fn = vfs_not_implemented_linux_setlease,
.getlock_fn = vfs_ceph_getlock,
.symlinkat_fn = vfs_ceph_symlinkat,
.readlinkat_fn = vfs_ceph_readlinkat,
.linkat_fn = vfs_ceph_linkat,
.mknodat_fn = vfs_ceph_mknodat,
.realpath_fn = vfs_ceph_realpath,
.fchflags_fn = vfs_not_implemented_fchflags,
.get_real_filename_at_fn = vfs_ceph_get_real_filename_at,
.connectpath_fn = vfs_ceph_connectpath,
.fget_dos_attributes_fn = vfs_ceph_fget_dos_attributes,
.fset_dos_attributes_fn = vfs_ceph_fset_dos_attributes,
/* EA operations. */
.getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
.getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
.fgetxattr_fn = vfs_ceph_fgetxattr,
.flistxattr_fn = vfs_ceph_flistxattr,
.fremovexattr_fn = vfs_ceph_fremovexattr,
.fsetxattr_fn = vfs_ceph_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 = vfs_not_implemented_aio_force,
};
static_decl_vfs;
NTSTATUS vfs_ceph_new_init(TALLOC_CTX *ctx)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
"ceph_new", &ceph_new_fns);
}
View Git Blame Copy Permalink