[Gluster-devel] [PATCH 3/3 v5] vfs_glusterfs: Samba VFS module for glusterfs
Anand Avati
avati at redhat.com
Fri May 24 05:54:21 UTC 2013
Implement a Samba VFS plugin for glusterfs based on gluster's gfapi.
This is a "bottom" vfs plugin (not something to be stacked on top of
another module), and translates (most) calls into closest actions
on gfapi.
Signed-off-by: Anand Avati <avati at redhat.com>
---
source3/Makefile.in | 5 +
source3/configure.in | 11 +
source3/modules/vfs_glusterfs.c | 1237 +++++++++++++++++++++++++++++++++++++++
source3/modules/wscript_build | 9 +
source3/wscript | 6 +
5 files changed, 1268 insertions(+), 0 deletions(-)
create mode 100644 source3/modules/vfs_glusterfs.c
diff --git a/source3/Makefile.in b/source3/Makefile.in
index efe0694..a12887d 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -915,6 +915,7 @@ VFS_TIME_AUDIT_OBJ = modules/vfs_time_audit.o
VFS_MEDIA_HARMONY_OBJ = modules/vfs_media_harmony.o
VFS_BTRFS_OBJ = modules/vfs_btrfs.o
VFS_CEPH_OBJ = modules/vfs_ceph.o
+VFS_GLUSTERFS_OBJ = modules/vfs_glusterfs.o
PAM_ERRORS_OBJ = ../libcli/auth/pam_errors.o
PLAINTEXT_AUTH_OBJ = auth/pampass.o auth/pass_check.o $(PAM_ERRORS_OBJ)
@@ -2963,6 +2964,10 @@ bin/ceph. at SHLIBEXT@: $(BINARY_PREREQS) $(VFS_CEPH_OBJ)
@echo "Building plugin $@"
@$(SHLD_MODULE) $(VFS_CEPH_OBJ)
+bin/glusterfs. at SHLIBEXT@: $(BINARY_PREREQS) $(VFS_GLUSTERFS_OBJ)
+ @echo "Building plugin $@"
+ $(SHLD_MODULE) $(VFS_GLUSTERFS_OBJ)
+
#########################################################
## IdMap NSS plugins
diff --git a/source3/configure.in b/source3/configure.in
index 0e2f126..3fc742c 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -1051,6 +1051,16 @@ CFLAGS="$save_CFLAGS"
LDFLAGS="$save_LDFLAGS"
LIBS="$save_LIBS"
+
+###################
+PKG_CHECK_MODULES([GLFS], [glusterfs-api >= 4], glfs_found=yes, glfs_found=no)
+if test "x$glfs_found" = "xyes"; then
+ CFLAGS="$CFLAGS $GLFS_CFLAGS"
+ LDFLAGS="$LDFLAGS $GLFS_LDFLAGS"
+ LIBS="$LIBS $GLFS_LIBS"
+ default_shared_modules="$default_shared_modules vfs_glusterfs"
+fi
+
# Note that all the libunwind symbols in the API are defined to internal
# platform-specific version, so we must include libunwind.h before checking
# any of them.
@@ -6485,6 +6495,7 @@ SMB_MODULE(vfs_time_audit, \$(VFS_TIME_AUDIT_OBJ), "bin/time_audit.$SHLIBEXT", V
SMB_MODULE(vfs_media_harmony, \$(VFS_MEDIA_HARMONY_OBJ), "bin/media_harmony.$SHLIBEXT", VFS)
SMB_MODULE(vfs_btrfs, \$(VFS_BTRFS_OBJ), "bin/btrfs.$SHLIBEXT", VFS)
SMB_MODULE(vfs_ceph, \$(VFS_CEPH_OBJ), "bin/ceph.$SHLIBEXT", VFS)
+SMB_MODULE(vfs_glusterfs, \$(VFS_GLUSTERFS_OBJ), "bin/glusterfs.$SHLIBEXT", VFS)
SMB_SUBSYSTEM(VFS,smbd/vfs.o)
diff --git a/source3/modules/vfs_glusterfs.c b/source3/modules/vfs_glusterfs.c
new file mode 100644
index 0000000..2c46652
--- /dev/null
+++ b/source3/modules/vfs_glusterfs.c
@@ -0,0 +1,1237 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Wrap GlusterFS GFAPI calls in vfs functions.
+
+ Copyright (c) 2013 Anand Avati <avati at redhat.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/>.
+*/
+
+#include "includes.h"
+#include "smbd/smbd.h"
+#include <stdio.h>
+#include <sys/acl.h>
+#include "api/glfs.h"
+#include "modules/vfs_posixacl.h"
+
+#define DEFAULT_VOLFILE_SERVER "localhost"
+
+/*
+ TODO
+ ----
+ Short term:
+ - AIO support
+ - sendfile/recvfile support
+ - vfs_gluster_sys_acl_get_file dynamic xattr size
+*/
+
+/* Helpers to provide 'integer' fds */
+
+/* This is global. gfapi's FD operations do not
+ require filesystem context.
+*/
+
+static glfs_fd_t **glfd_fd;
+static int glfd_fd_size;
+static int glfd_fd_used;
+
+static int glfd_fd_store(glfs_fd_t *glfd)
+{
+ int i;
+ void *tmp;
+
+ if (glfd_fd_size == glfd_fd_used) {
+ if (glfd_fd_size >= INT_MAX - 1) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ tmp = talloc_realloc(glfd_fd, glfd_fd, glfs_fd_t *,
+ glfd_fd_size + 1);
+ if (!tmp) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ glfd_fd = tmp;
+ glfd_fd[glfd_fd_size] = 0;
+ glfd_fd_size++;
+ }
+
+ for (i = 0; i < glfd_fd_size; i++)
+ if (!glfd_fd[i])
+ break;
+ glfd_fd_used++;
+ glfd_fd[i] = glfd;
+ return i;
+}
+
+static glfs_fd_t *glfd_fd_get(int i)
+{
+ if (i < 0 || i >= glfd_fd_size)
+ return NULL;
+ return glfd_fd[i];
+}
+
+static glfs_fd_t *glfd_fd_clear(int i)
+{
+ glfs_fd_t *glfd = NULL;
+
+ if (i < 0 || i >= glfd_fd_size)
+ return NULL;
+
+ glfd = glfd_fd[i];
+
+ glfd_fd[i] = 0;
+ glfd_fd_used--;
+ return glfd;
+}
+
+/* Helper to convert stat to stat_ex */
+
+static void smb_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
+{
+ ZERO_STRUCTP(dst);
+
+ dst->st_ex_dev = src->st_dev;
+ dst->st_ex_ino = src->st_ino;
+ dst->st_ex_mode = src->st_mode;
+ dst->st_ex_nlink = src->st_nlink;
+ dst->st_ex_uid = src->st_uid;
+ dst->st_ex_gid = src->st_gid;
+ dst->st_ex_rdev = src->st_rdev;
+ dst->st_ex_size = src->st_size;
+ dst->st_ex_atime.tv_sec = src->st_atime;
+#ifdef STAT_HAVE_NSEC
+ dst->st_ex_atime.tv_nsec = src->st_atime_nsec;
+#endif
+ dst->st_ex_mtime.tv_sec = src->st_mtime;
+#ifdef STAT_HAVE_NSEC
+ dst->st_ex_mtime.tv_nsec = src->st_mtime_nsec;
+#endif
+ dst->st_ex_ctime.tv_sec = src->st_ctime;
+#ifdef STAT_HAVE_NSEC
+ dst->st_ex_ctime.tv_nsec = src->st_ctime_nsec;
+#endif
+ dst->st_ex_btime.tv_sec = src->st_mtime;
+#ifdef STAT_HAVE_NSEC
+ dst->st_ex_btime.tv_nsec = src->st_mtime_nsec;
+#endif
+ dst->st_ex_blksize = src->st_blksize;
+ dst->st_ex_blocks = src->st_blocks;
+}
+
+/* pre-opened glfs_t */
+
+static struct {
+ char *volume;
+ glfs_t *fs;
+ int ref;
+} *glfs_preopened;
+static int glfs_preopened_size;
+static int glfs_preopened_used;
+
+int glfs_set_preopened(const char *volume, glfs_t *fs)
+{
+ int i;
+
+ if (glfs_preopened_size == glfs_preopened_used) {
+ void *tmp;
+
+ if (glfs_preopened_size >= INT_MAX - 1) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ tmp = talloc_realloc(glfs_preopened, glfs_preopened,
+ typeof(*glfs_preopened),
+ (glfs_preopened_size + 1));
+ if (!tmp) {
+ errno = ENOMEM;
+ return -1;
+ }
+ glfs_preopened = tmp;
+ glfs_preopened[glfs_preopened_size].volume = 0;
+ glfs_preopened_size++;
+ }
+
+ for (i = 0; i < glfs_preopened_size; i++)
+ if (!glfs_preopened[i].volume)
+ break;
+
+ glfs_preopened[i].volume = talloc_strdup(NULL, volume);
+ glfs_preopened[i].fs = fs;
+ glfs_preopened[i].ref = 1;
+
+ return i;
+}
+
+static glfs_t *glfs_find_preopened(const char *volume)
+{
+ int i;
+
+ for (i = 0; i < glfs_preopened_size; i++) {
+ if (glfs_preopened[i].volume &&
+ strcmp(glfs_preopened[i].volume, volume) == 0) {
+ glfs_preopened[i].ref++;
+ return glfs_preopened[i].fs;
+ }
+ }
+
+ return NULL;
+}
+
+static void glfs_clear_preopened(glfs_t *fs)
+{
+ int i;
+
+ for (i = 0; i < glfs_preopened_size; i++) {
+ if (glfs_preopened[i].fs == fs) {
+ if (--glfs_preopened[i].ref)
+ return;
+
+ talloc_free(glfs_preopened[i].volume);
+ glfs_fini(glfs_preopened[i].fs);
+ ZERO_STRUCTP(&glfs_preopened[i]);
+ return;
+ }
+ }
+
+ assert(!"filesystem context not found");
+}
+
+/* Disk Operations */
+
+static int vfs_gluster_connect(struct vfs_handle_struct *handle,
+ const char *service,
+ const char *user)
+{
+ const char *volfile_server;
+ const char *volume;
+ const char *logfile;
+ int loglevel;
+ glfs_t *fs;
+ int ret;
+
+ logfile = lp_parm_const_string(SNUM(handle->conn), "glusterfs",
+ "logfile", NULL);
+
+ loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", 0);
+
+ volfile_server = lp_parm_const_string(SNUM(handle->conn), "glusterfs",
+ "volfile_server", NULL);
+ if (!volfile_server)
+ volfile_server = DEFAULT_VOLFILE_SERVER;
+
+ volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
+ NULL);
+ if (!volume)
+ volume = service;
+
+ fs = glfs_find_preopened(volume);
+ if (fs)
+ goto found;
+
+ fs = glfs_new(volume);
+ if (!fs)
+ return -1;
+
+ ret = glfs_set_volfile_server(fs, "tcp", volfile_server, 0);
+ if (ret) {
+ glfs_fini(fs);
+ return -1;
+ }
+
+ ret =
+ glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl", "true");
+ if (ret) {
+ glfs_fini(fs);
+ return -1;
+ }
+
+ ret = glfs_set_logging(fs, logfile, loglevel);
+ if (ret) {
+ glfs_fini(fs);
+ return -1;
+ }
+
+ ret = glfs_init(fs);
+ if (ret) {
+ glfs_fini(fs);
+ return -1;
+ }
+
+ ret = glfs_set_preopened(volume, fs);
+ if (ret == -1) {
+ glfs_fini(fs);
+ return -1;
+ }
+found:
+ handle->data = fs;
+ return 0;
+}
+
+static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
+{
+ glfs_t *fs = NULL;
+
+ fs = handle->data;
+
+ glfs_clear_preopened(fs);
+}
+
+static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
+ const char *path, bool small_query,
+ uint64_t *bsize_p, uint64_t *dfree_p,
+ uint64_t *dsize_p)
+{
+ struct statvfs statvfs = { 0, };
+ uint64_t dfree = 0;
+ int ret;
+
+ ret = glfs_statvfs(handle->data, path, &statvfs);
+ if (ret)
+ return -1;
+
+ dfree = statvfs.f_bsize * statvfs.f_bavail;
+
+ if (bsize_p)
+ *bsize_p = statvfs.f_bsize;
+ if (dfree_p)
+ *dfree_p = dfree;
+ if (dsize_p)
+ *dsize_p = statvfs.f_bsize * statvfs.f_blocks;
+
+ return dfree;
+}
+
+static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
+ enum SMB_QUOTA_TYPE qtype, unid_t id,
+ SMB_DISK_QUOTA *qt)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+static int
+vfs_gluster_set_quota(struct vfs_handle_struct *handle,
+ enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
+ const char *path,
+ struct vfs_statvfs_struct *vfs_statvfs)
+{
+ struct statvfs statvfs = { 0, };
+ int ret;
+
+ ret = glfs_statvfs(handle->data, path, &statvfs);
+ if (ret)
+ return -1;
+
+ ZERO_STRUCTP(vfs_statvfs);
+
+ vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
+ vfs_statvfs->BlockSize = statvfs.f_bsize;
+ vfs_statvfs->TotalBlocks = statvfs.f_blocks;
+ vfs_statvfs->BlocksAvail = statvfs.f_bfree;
+ vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
+ vfs_statvfs->TotalFileNodes = statvfs.f_files;
+ vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
+ vfs_statvfs->FsIdentifier = statvfs.f_fsid;
+ vfs_statvfs->FsCapabilities =
+ FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
+
+ return ret;
+}
+
+static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
+ enum timestamp_set_resolution *p_ts_res)
+{
+ uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
+
+#ifdef STAT_HAVE_NSEC
+ *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
+#endif
+
+ return caps;
+}
+
+static DIR *vfs_gluster_opendir(struct vfs_handle_struct *handle,
+ const char *path, const char *mask,
+ uint32 attributes)
+{
+ glfs_fd_t *fd;
+
+ fd = glfs_opendir(handle->data, path);
+
+ return (DIR *) fd;
+}
+
+static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
+ files_struct *fsp, const char *mask,
+ uint32 attributes)
+{
+ return (DIR *) glfd_fd_get(fsp->fh->fd);
+}
+
+static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
+{
+ return glfs_closedir((void *)dirp);
+}
+
+static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
+ DIR *dirp, SMB_STRUCT_STAT *sbuf)
+{
+ static char direntbuf[512];
+ int ret;
+ struct stat stat;
+ struct dirent *dirent = 0;
+
+ if (sbuf)
+ ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
+ &dirent);
+ else
+ ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
+
+ if (ret || !dirent)
+ return NULL;
+
+ if (sbuf)
+ smb_stat_ex_from_stat(sbuf, &stat);
+
+ return dirent;
+}
+
+static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
+{
+ return glfs_telldir((void *)dirp);
+}
+
+static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
+ long offset)
+{
+ glfs_seekdir((void *)dirp, offset);
+}
+
+static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
+{
+ glfs_seekdir((void *)dirp, 0);
+}
+
+static void vfs_gluster_init_search_op(struct vfs_handle_struct *handle,
+ DIR *dirp)
+{
+ return;
+}
+
+static int vfs_gluster_mkdir(struct vfs_handle_struct *handle, const char *path,
+ mode_t mode)
+{
+ return glfs_mkdir(handle->data, path, mode);
+}
+
+static int vfs_gluster_rmdir(struct vfs_handle_struct *handle, const char *path)
+{
+ return glfs_rmdir(handle->data, path);
+}
+
+static int vfs_gluster_open(struct vfs_handle_struct *handle,
+ struct smb_filename *smb_fname, files_struct *fsp,
+ int flags, mode_t mode)
+{
+ glfs_fd_t *glfd;
+
+ if (flags & O_DIRECTORY)
+ glfd = glfs_opendir(handle->data, smb_fname->base_name);
+ else if (flags & O_CREAT)
+ glfd =
+ glfs_creat(handle->data, smb_fname->base_name, flags, mode);
+ else
+ glfd = glfs_open(handle->data, smb_fname->base_name, flags);
+
+ if (!glfd)
+ return -1;
+
+ return glfd_fd_store(glfd);
+}
+
+static int vfs_gluster_close(struct vfs_handle_struct *handle,
+ files_struct *fsp)
+{
+ return glfs_close(glfd_fd_clear(fsp->fh->fd));
+}
+
+static ssize_t vfs_gluster_read(struct vfs_handle_struct *handle,
+ files_struct *fsp, void *data, size_t n)
+{
+ return glfs_read(glfd_fd_get(fsp->fh->fd), data, n, 0);
+}
+
+static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
+ files_struct *fsp, void *data, size_t n,
+ off_t offset)
+{
+ return glfs_pread(glfd_fd_get(fsp->fh->fd), data, n, offset, 0);
+}
+
+static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
+ *handle, TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ files_struct *fsp, void *data,
+ size_t n, off_t offset)
+{
+ errno = ENOTSUP;
+ return NULL;
+}
+
+static ssize_t vfs_gluster_pread_recv(struct tevent_req *req, int *err)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static ssize_t vfs_gluster_write(struct vfs_handle_struct *handle,
+ files_struct *fsp, const void *data, size_t n)
+{
+ return glfs_write(glfd_fd_get(fsp->fh->fd), data, n, 0);
+}
+
+static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
+ files_struct *fsp, const void *data,
+ size_t n, off_t offset)
+{
+ return glfs_pwrite(glfd_fd_get(fsp->fh->fd), data, n, offset, 0);
+}
+
+static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
+ *handle, TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ files_struct *fsp,
+ const void *data, size_t n,
+ off_t offset)
+{
+ errno = ENOTSUP;
+ return NULL;
+}
+
+static ssize_t vfs_gluster_pwrite_recv(struct tevent_req *req, int *err)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
+ files_struct *fsp, off_t offset, int whence)
+{
+ return glfs_lseek(glfd_fd_get(fsp->fh->fd), offset, whence);
+}
+
+static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
+ files_struct *fromfsp,
+ const DATA_BLOB *hdr,
+ off_t offset, size_t n)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
+ int fromfd, files_struct *tofsp,
+ off_t offset, size_t n)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static int vfs_gluster_rename(struct vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname_src,
+ const struct smb_filename *smb_fname_dst)
+{
+ return glfs_rename(handle->data, smb_fname_src->base_name,
+ smb_fname_dst->base_name);
+}
+
+static int vfs_gluster_fsync(struct vfs_handle_struct *handle,
+ files_struct *fsp)
+{
+ return glfs_fsync(glfd_fd_get(fsp->fh->fd));
+}
+
+static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
+ *handle, TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ files_struct *fsp)
+{
+ errno = ENOTSUP;
+ return NULL;
+}
+
+static int vfs_gluster_fsync_recv(struct tevent_req *req, int *err)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static int vfs_gluster_stat(struct vfs_handle_struct *handle,
+ struct smb_filename *smb_fname)
+{
+ struct stat st;
+ int ret;
+
+ ret = glfs_stat(handle->data, smb_fname->base_name, &st);
+ if (ret == 0)
+ smb_stat_ex_from_stat(&smb_fname->st, &st);
+ return ret;
+}
+
+static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
+ files_struct *fsp, SMB_STRUCT_STAT *sbuf)
+{
+ struct stat st;
+ int ret;
+
+ ret = glfs_fstat(glfd_fd_get(fsp->fh->fd), &st);
+ if (ret == 0)
+ smb_stat_ex_from_stat(sbuf, &st);
+ return ret;
+}
+
+static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
+ struct smb_filename *smb_fname)
+{
+ struct stat st;
+ int ret;
+
+ ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
+ if (ret == 0)
+ smb_stat_ex_from_stat(&smb_fname->st, &st);
+ return ret;
+}
+
+static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
+ files_struct *fsp,
+ const SMB_STRUCT_STAT *sbuf)
+{
+ return sbuf->st_ex_blocks * 512;
+}
+
+static int vfs_gluster_unlink(struct vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname)
+{
+ return glfs_unlink(handle->data, smb_fname->base_name);
+}
+
+static int vfs_gluster_chmod(struct vfs_handle_struct *handle,
+ const char *path, mode_t mode)
+{
+ return glfs_chmod(handle->data, path, mode);
+}
+
+static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
+ files_struct *fsp, mode_t mode)
+{
+ return glfs_fchmod(glfd_fd_get(fsp->fh->fd), mode);
+}
+
+static int vfs_gluster_chown(struct vfs_handle_struct *handle,
+ const char *path, uid_t uid, gid_t gid)
+{
+ return glfs_chown(handle->data, path, uid, gid);
+}
+
+static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
+ files_struct *fsp, uid_t uid, gid_t gid)
+{
+ return glfs_fchown(glfd_fd_get(fsp->fh->fd), uid, gid);
+}
+
+static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
+ const char *path, uid_t uid, gid_t gid)
+{
+ return glfs_lchown(handle->data, path, uid, gid);
+}
+
+static int vfs_gluster_chdir(struct vfs_handle_struct *handle, const char *path)
+{
+ return glfs_chdir(handle->data, path);
+}
+
+static char *vfs_gluster_getwd(struct vfs_handle_struct *handle)
+{
+ char *cwd;
+ char *ret;
+
+ cwd = calloc(1, PATH_MAX + 1);
+ if (!cwd)
+ return NULL;
+
+ ret = glfs_getcwd(handle->data, cwd, PATH_MAX);
+ if (!ret)
+ free(cwd);
+ return ret;
+}
+
+static int vfs_gluster_ntimes(struct vfs_handle_struct *handle,
+ const struct smb_filename *smb_fname,
+ struct smb_file_time *ft)
+{
+ struct timespec times[2];
+
+ times[0].tv_sec = ft->atime.tv_sec;
+ times[0].tv_nsec = ft->atime.tv_nsec;
+ times[1].tv_sec = ft->mtime.tv_sec;
+ times[1].tv_nsec = ft->mtime.tv_nsec;
+
+ return glfs_utimens(handle->data, smb_fname->base_name, times);
+}
+
+static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
+ files_struct *fsp, off_t offset)
+{
+ return glfs_ftruncate(glfd_fd_get(fsp->fh->fd), offset);
+}
+
+static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ enum vfs_fallocate_mode mode,
+ off_t offset, off_t len)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+static char *vfs_gluster_realpath(struct vfs_handle_struct *handle,
+ const char *path)
+{
+ return glfs_realpath(handle->data, path, 0);
+}
+
+static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
+ files_struct *fsp, int op, off_t offset,
+ off_t count, int type)
+{
+ struct flock flock = { 0, };
+ int ret;
+
+ flock.l_type = type;
+ flock.l_whence = SEEK_SET;
+ flock.l_start = offset;
+ flock.l_len = count;
+ flock.l_pid = 0;
+
+ ret = glfs_posix_lock(glfd_fd_get(fsp->fh->fd), op, &flock);
+
+ if (op == F_GETLK) {
+ /* lock query, true if someone else has locked */
+ if ((ret != -1) &&
+ (flock.l_type != F_UNLCK) &&
+ (flock.l_pid != 0) && (flock.l_pid != getpid()))
+ return true;
+ /* not me */
+ return false;
+ }
+
+ if (ret == -1)
+ return false;
+
+ return true;
+}
+
+static int vfs_gluster_kernel_flock(struct vfs_handle_struct *handle,
+ files_struct *fsp, uint32 share_mode,
+ uint32_t access_mask)
+{
+ return 0;
+}
+
+static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
+ files_struct *fsp, int leasetype)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
+ files_struct *fsp, off_t *poffset,
+ off_t *pcount, int *ptype, pid_t *ppid)
+{
+ struct flock flock = { 0, };
+ int ret;
+
+ flock.l_type = *ptype;
+ flock.l_whence = SEEK_SET;
+ flock.l_start = *poffset;
+ flock.l_len = *pcount;
+ flock.l_pid = 0;
+
+ ret = glfs_posix_lock(glfd_fd_get(fsp->fh->fd), F_GETLK, &flock);
+
+ if (ret == -1)
+ return false;
+
+ *ptype = flock.l_type;
+ *poffset = flock.l_start;
+ *pcount = flock.l_len;
+ *ppid = flock.l_pid;
+
+ return true;
+}
+
+static int vfs_gluster_symlink(struct vfs_handle_struct *handle,
+ const char *oldpath, const char *newpath)
+{
+ return glfs_symlink(handle->data, oldpath, newpath);
+}
+
+static int vfs_gluster_readlink(struct vfs_handle_struct *handle,
+ const char *path, char *buf, size_t bufsiz)
+{
+ return glfs_readlink(handle->data, path, buf, bufsiz);
+}
+
+static int vfs_gluster_link(struct vfs_handle_struct *handle,
+ const char *oldpath, const char *newpath)
+{
+ return glfs_link(handle->data, oldpath, newpath);
+}
+
+static int vfs_gluster_mknod(struct vfs_handle_struct *handle, const char *path,
+ mode_t mode, SMB_DEV_T dev)
+{
+ return glfs_mknod(handle->data, path, mode, dev);
+}
+
+static NTSTATUS vfs_gluster_notify_watch(struct vfs_handle_struct *handle,
+ struct sys_notify_context *ctx,
+ const char *path, uint32_t *filter,
+ uint32_t *subdir_filter,
+ void (*callback) (struct sys_notify_context *ctx,
+ void *private_data,
+ struct notify_event *ev),
+ void *private_data, void *handle_p)
+{
+ return NT_STATUS_OK;
+}
+
+static int vfs_gluster_chflags(struct vfs_handle_struct *handle,
+ const char *path, unsigned int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+static int vfs_gluster_get_real_filename(struct vfs_handle_struct *handle,
+ const char *path, const char *name,
+ TALLOC_CTX *mem_ctx, char **found_name)
+{
+ int ret;
+ char key_buf[NAME_MAX + 64];
+ char val_buf[NAME_MAX + 1];
+
+ if (strlen(name) >= NAME_MAX) {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+
+ snprintf(key_buf, NAME_MAX + 64,
+ "trusted.glusterfs.get_real_filename:%s", name);
+
+ ret = glfs_getxattr(handle->data, path, key_buf, val_buf, NAME_MAX + 1);
+ if (ret == -1 && errno == ENODATA) {
+ errno = EOPNOTSUPP;
+ return -1;
+ }
+
+ *found_name = talloc_strdup(mem_ctx, val_buf);
+ if (!*found_name) {
+ errno = ENOMEM;
+ return -1;
+ }
+ return 0;
+}
+
+static const char *vfs_gluster_connectpath(struct vfs_handle_struct *handle,
+ const char *filename)
+{
+ return handle->conn->connectpath;
+}
+
+/* EA Operations */
+
+static ssize_t vfs_gluster_getxattr(struct vfs_handle_struct *handle,
+ const char *path, const char *name,
+ void *value, size_t size)
+{
+ return glfs_getxattr(handle->data, path, name, value, size);
+}
+
+static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
+ files_struct *fsp, const char *name,
+ void *value, size_t size)
+{
+ return glfs_fgetxattr(glfd_fd_get(fsp->fh->fd), name, value, size);
+}
+
+static ssize_t vfs_gluster_listxattr(struct vfs_handle_struct *handle,
+ const char *path, char *list, size_t size)
+{
+ return glfs_listxattr(handle->data, path, list, size);
+}
+
+static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
+ files_struct *fsp, char *list,
+ size_t size)
+{
+ return glfs_flistxattr(glfd_fd_get(fsp->fh->fd), list, size);
+}
+
+static int vfs_gluster_removexattr(struct vfs_handle_struct *handle,
+ const char *path, const char *name)
+{
+ return glfs_removexattr(handle->data, path, name);
+}
+
+static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
+ files_struct *fsp, const char *name)
+{
+ return glfs_fremovexattr(glfd_fd_get(fsp->fh->fd), name);
+}
+
+static int vfs_gluster_setxattr(struct vfs_handle_struct *handle,
+ const char *path, const char *name,
+ const void *value, size_t size, int flags)
+{
+ return glfs_setxattr(handle->data, path, name, value, size, flags);
+}
+
+static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
+ files_struct *fsp, const char *name,
+ const void *value, size_t size, int flags)
+{
+ return glfs_fsetxattr(glfd_fd_get(fsp->fh->fd), name, value, size,
+ flags);
+}
+
+/* AIO Operations */
+
+static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
+ files_struct *fsp)
+{
+ return false;
+}
+
+/* Offline Operations */
+
+static bool vfs_gluster_is_offline(struct vfs_handle_struct *handle,
+ const struct smb_filename *fname,
+ SMB_STRUCT_STAT *sbuf)
+{
+ return false;
+}
+
+static int vfs_gluster_set_offline(struct vfs_handle_struct *handle,
+ const struct smb_filename *fname)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+
+/* Posix ACL Operations */
+
+static SMB_ACL_T vfs_gluster_sys_acl_get_file(struct vfs_handle_struct *handle,
+ const char *path_p,
+ SMB_ACL_TYPE_T type,
+ TALLOC_CTX *mem_ctx)
+{
+ struct smb_acl_t *result;
+ acl_t acl;
+ char *buf;
+ char *key;
+ ssize_t ret;
+
+ switch (type) {
+ case SMB_ACL_TYPE_ACCESS:
+ key = "system.posix_acl_access";
+ break;
+ case SMB_ACL_TYPE_DEFAULT:
+ key = "system.posix_acl_default";
+ break;
+ default:
+ errno = EINVAL;
+ return NULL;
+ }
+
+ ret = glfs_getxattr(handle->data, path_p, key, 0, 0);
+ if (ret <= 0)
+ return NULL;
+
+ buf = alloca(ret);
+ ret = glfs_getxattr(handle->data, path_p, key, buf, ret);
+ if (ret <= 0)
+ return NULL;
+
+ acl = acl_copy_int(buf);
+
+ if (!acl)
+ return NULL;
+
+ result = smb_acl_to_internal(acl, mem_ctx);
+ acl_free(acl);
+ return result;
+}
+
+static SMB_ACL_T vfs_gluster_sys_acl_get_fd(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ TALLOC_CTX *mem_ctx)
+{
+ struct smb_acl_t *result;
+ acl_t acl;
+ int ret;
+ char *buf;
+
+ ret = glfs_fgetxattr(glfd_fd_get(fsp->fh->fd),
+ "system.posix_acl_access", 0, 0);
+ if (ret <= 0)
+ return NULL;
+
+ buf = alloca(ret);
+ ret = glfs_fgetxattr(glfd_fd_get(fsp->fh->fd),
+ "system.posix_acl_access", buf, ret);
+ if (ret <= 0)
+ return NULL;
+
+ acl = acl_copy_int(buf);
+ if (!acl)
+ return NULL;
+
+ result = smb_acl_to_internal(acl, mem_ctx);
+ acl_free(acl);
+ return result;
+}
+
+static int vfs_gluster_sys_acl_set_file(struct vfs_handle_struct *handle,
+ const char *name,
+ SMB_ACL_TYPE_T acltype,
+ SMB_ACL_T theacl)
+{
+ int ret;
+ char *key;
+ char *buf;
+ acl_t acl;
+ ssize_t size;
+
+ switch (acltype) {
+ case SMB_ACL_TYPE_ACCESS:
+ key = "system.posix_acl_access";
+ break;
+ case SMB_ACL_TYPE_DEFAULT:
+ key = "system.posix_acl_default";
+ break;
+ default:
+ errno = EINVAL;
+ return -1;
+ }
+
+ acl = smb_acl_to_posix(theacl);
+ if (!acl)
+ return -1;
+ size = acl_size(acl);
+ buf = alloca(size);
+
+ size = acl_copy_ext(buf, acl, size);
+ if (size == -1)
+ return -1;
+
+ ret = glfs_setxattr(handle->data, name, key, buf, size, 0);
+
+ acl_free(acl);
+
+ return ret;
+}
+
+static int vfs_gluster_sys_acl_set_fd(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ SMB_ACL_T theacl)
+{
+ int ret;
+ char *key;
+ char *buf;
+ acl_t acl;
+ ssize_t size;
+
+ acl = smb_acl_to_posix(theacl);
+ if (!acl)
+ return -1;
+
+ size = acl_size(acl);
+ buf = alloca(size);
+
+ size = acl_copy_ext(buf, acl, size);
+ if (size == -1)
+ return -1;
+
+ ret = glfs_fsetxattr(glfd_fd_get(fsp->fh->fd),
+ "system.posix_acl_access", buf, size, 0);
+ acl_free(acl);
+
+ return ret;
+}
+
+static int vfs_gluster_sys_acl_delete_def_file(struct vfs_handle_struct *handle,
+ const char *path)
+{
+ return glfs_removexattr(handle->data, path, "system.posix_acl_default");
+}
+
+static struct vfs_fn_pointers glusterfs_fns = {
+
+ /* Disk Operations */
+
+ .connect_fn = vfs_gluster_connect,
+ .disconnect_fn = vfs_gluster_disconnect,
+ .disk_free_fn = vfs_gluster_disk_free,
+ .get_quota_fn = vfs_gluster_get_quota,
+ .set_quota_fn = vfs_gluster_set_quota,
+ .statvfs_fn = vfs_gluster_statvfs,
+ .fs_capabilities_fn = vfs_gluster_fs_capabilities,
+
+ .get_dfs_referrals_fn = NULL,
+
+ /* Directory Operations */
+
+ .opendir_fn = vfs_gluster_opendir,
+ .fdopendir_fn = vfs_gluster_fdopendir,
+ .readdir_fn = vfs_gluster_readdir,
+ .seekdir_fn = vfs_gluster_seekdir,
+ .telldir_fn = vfs_gluster_telldir,
+ .rewind_dir_fn = vfs_gluster_rewinddir,
+ .mkdir_fn = vfs_gluster_mkdir,
+ .rmdir_fn = vfs_gluster_rmdir,
+ .closedir_fn = vfs_gluster_closedir,
+ .init_search_op_fn = vfs_gluster_init_search_op,
+
+ /* File Operations */
+
+ .open_fn = vfs_gluster_open,
+ .create_file_fn = NULL,
+ .close_fn = vfs_gluster_close,
+ .read_fn = vfs_gluster_read,
+ .pread_fn = vfs_gluster_pread,
+ .pread_send_fn = vfs_gluster_pread_send,
+ .pread_recv_fn = vfs_gluster_pread_recv,
+ .write_fn = vfs_gluster_write,
+ .pwrite_fn = vfs_gluster_pwrite,
+ .pwrite_send_fn = vfs_gluster_pwrite_send,
+ .pwrite_recv_fn = vfs_gluster_pwrite_recv,
+ .lseek_fn = vfs_gluster_lseek,
+ .sendfile_fn = vfs_gluster_sendfile,
+ .recvfile_fn = vfs_gluster_recvfile,
+ .rename_fn = vfs_gluster_rename,
+ .fsync_fn = vfs_gluster_fsync,
+ .fsync_send_fn = vfs_gluster_fsync_send,
+ .fsync_recv_fn = vfs_gluster_fsync_recv,
+
+ .stat_fn = vfs_gluster_stat,
+ .fstat_fn = vfs_gluster_fstat,
+ .lstat_fn = vfs_gluster_lstat,
+ .get_alloc_size_fn = vfs_gluster_get_alloc_size,
+ .unlink_fn = vfs_gluster_unlink,
+
+ .chmod_fn = vfs_gluster_chmod,
+ .fchmod_fn = vfs_gluster_fchmod,
+ .chown_fn = vfs_gluster_chown,
+ .fchown_fn = vfs_gluster_fchown,
+ .lchown_fn = vfs_gluster_lchown,
+ .chdir_fn = vfs_gluster_chdir,
+ .getwd_fn = vfs_gluster_getwd,
+ .ntimes_fn = vfs_gluster_ntimes,
+ .ftruncate_fn = vfs_gluster_ftruncate,
+ .fallocate_fn = vfs_gluster_fallocate,
+ .lock_fn = vfs_gluster_lock,
+ .kernel_flock_fn = vfs_gluster_kernel_flock,
+ .linux_setlease_fn = vfs_gluster_linux_setlease,
+ .getlock_fn = vfs_gluster_getlock,
+ .symlink_fn = vfs_gluster_symlink,
+ .readlink_fn = vfs_gluster_readlink,
+ .link_fn = vfs_gluster_link,
+ .mknod_fn = vfs_gluster_mknod,
+ .realpath_fn = vfs_gluster_realpath,
+ .notify_watch_fn = vfs_gluster_notify_watch,
+ .chflags_fn = vfs_gluster_chflags,
+ .file_id_create_fn = NULL,
+ .copy_chunk_send_fn = NULL,
+ .copy_chunk_recv_fn = NULL,
+ .streaminfo_fn = NULL,
+ .get_real_filename_fn = vfs_gluster_get_real_filename,
+ .connectpath_fn = vfs_gluster_connectpath,
+
+ .brl_lock_windows_fn = NULL,
+ .brl_unlock_windows_fn = NULL,
+ .brl_cancel_windows_fn = NULL,
+ .strict_lock_fn = NULL,
+ .strict_unlock_fn = NULL,
+ .translate_name_fn = NULL,
+ .fsctl_fn = NULL,
+
+ /* NT ACL Operations */
+ .fget_nt_acl_fn = NULL,
+ .get_nt_acl_fn = NULL,
+ .fset_nt_acl_fn = NULL,
+ .audit_file_fn = NULL,
+
+ /* Posix ACL Operations */
+ .chmod_acl_fn = NULL, /* passthrough to default */
+ .fchmod_acl_fn = NULL, /* passthrough to default */
+ .sys_acl_get_file_fn = vfs_gluster_sys_acl_get_file,
+ .sys_acl_get_fd_fn = vfs_gluster_sys_acl_get_fd,
+ .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
+ .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
+ .sys_acl_set_file_fn = vfs_gluster_sys_acl_set_file,
+ .sys_acl_set_fd_fn = vfs_gluster_sys_acl_set_fd,
+ .sys_acl_delete_def_file_fn = vfs_gluster_sys_acl_delete_def_file,
+
+ /* EA Operations */
+ .getxattr_fn = vfs_gluster_getxattr,
+ .fgetxattr_fn = vfs_gluster_fgetxattr,
+ .listxattr_fn = vfs_gluster_listxattr,
+ .flistxattr_fn = vfs_gluster_flistxattr,
+ .removexattr_fn = vfs_gluster_removexattr,
+ .fremovexattr_fn = vfs_gluster_fremovexattr,
+ .setxattr_fn = vfs_gluster_setxattr,
+ .fsetxattr_fn = vfs_gluster_fsetxattr,
+
+ /* AIO Operations */
+ .aio_force_fn = vfs_gluster_aio_force,
+
+ /* Offline Operations */
+ .is_offline_fn = vfs_gluster_is_offline,
+ .set_offline_fn = vfs_gluster_set_offline,
+
+ /* Durable handle Operations */
+ .durable_cookie_fn = NULL,
+ .durable_disconnect_fn = NULL,
+ .durable_reconnect_fn = NULL,
+};
+
+NTSTATUS vfs_glusterfs_init(void);
+NTSTATUS vfs_glusterfs_init(void)
+{
+ return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
+ "glusterfs", &glusterfs_fns);
+}
diff --git a/source3/modules/wscript_build b/source3/modules/wscript_build
index 937dbde..7586e30 100644
--- a/source3/modules/wscript_build
+++ b/source3/modules/wscript_build
@@ -52,6 +52,7 @@ VFS_TIME_AUDIT_SRC = 'vfs_time_audit.c'
VFS_MEDIA_HARMONY_SRC = 'vfs_media_harmony.c'
VFS_BTRFS_SRC = 'vfs_btrfs.c'
VFS_CEPH_SRC = 'vfs_ceph.c'
+VFS_GLUSTERFS_SRC = 'vfs_glusterfs.c'
bld.SAMBA3_SUBSYSTEM('NFS4_ACLS',
@@ -522,3 +523,11 @@ bld.SAMBA3_MODULE('vfs_ceph',
internal_module=bld.SAMBA3_IS_STATIC_MODULE('vfs_ceph'),
enabled=bld.SAMBA3_IS_ENABLED_MODULE('vfs_ceph'),
cflags=bld.CONFIG_GET('CCFLAGS_CEPHFS'))
+
+bld.SAMBA3_MODULE('vfs_glusterfs',
+ subsystem='vfs',
+ source=VFS_GLUSTERFS_SRC,
+ deps='samba-util',
+ init_function='',
+ internal_module=bld.SAMBA3_IS_STATIC_MODULE('vfs_glusterfs'),
+ enabled=bld.SAMBA3_IS_ENABLED_MODULE('vfs_glusterfs'))
diff --git a/source3/wscript b/source3/wscript
index dba6cdc..eeec842 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -1727,6 +1727,9 @@ main() {
Logs.info("ncurses not available, not building regedit")
+ if conf.CHECK_HEADERS('api/glfs.h'):
+ conf.DEFINE('HAVE_GLUSTERFS', '1')
+
default_static_modules.extend(TO_LIST('''pdb_smbpasswd pdb_tdbsam pdb_wbc_sam
auth_sam auth_unix auth_winbind auth_wbc
auth_domain auth_builtin vfs_default
@@ -1797,6 +1800,9 @@ main() {
if conf.CONFIG_SET("HAVE_CEPH"):
default_shared_modules.extend(TO_LIST('vfs_ceph'))
+ if conf.CONFIG_SET('HAVE_GLUSTERFS'):
+ default_shared_modules.extend(TO_LIST('vfs_glusterfs'))
+
explicit_shared_modules = TO_LIST(Options.options.shared_modules, delimiter=',')
explicit_static_modules = TO_LIST(Options.options.static_modules, delimiter=',')
--
1.7.1
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