[Gluster-devel] [PATCH 3/3] vfs_glusterfs: Samba VFS module for glusterfs
Anand Avati
avati at redhat.com
Thu May 2 18:36:32 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 | 1315 +++++++++++++++++++++++++++++++++++++++
source3/modules/vfs_posixacl.h | 2 +
source3/modules/wscript_build | 9 +
source3/wscript | 7 +
6 files changed, 1349 insertions(+), 0 deletions(-)
create mode 100644 source3/modules/vfs_glusterfs.c
diff --git a/source3/Makefile.in b/source3/Makefile.in
index c701fd1..5eefe79 100644
--- a/source3/Makefile.in
+++ b/source3/Makefile.in
@@ -914,6 +914,7 @@ 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)
@@ -2970,6 +2971,10 @@ 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) $(VFS_GLUSTERFS_OBJ)
+
#########################################################
## IdMap NSS plugins
diff --git a/source3/configure.in b/source3/configure.in
index d2aa215..556d117 100644
--- a/source3/configure.in
+++ b/source3/configure.in
@@ -1053,6 +1053,16 @@ CFLAGS="$save_CFLAGS"
LDFLAGS="$save_LDFLAGS"
LIBS="$save_LIBS"
+
+###################
+PKG_CHECK_MODULES([GLFS], [glusterfs-api >= 3], 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.
@@ -6486,6 +6496,7 @@ 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..3ab0d75
--- /dev/null
+++ b/source3/modules/vfs_glusterfs.c
@@ -0,0 +1,1315 @@
+/*
+ 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) {
+ tmp = realloc (glfd_fd, (glfd_fd_size + 1024) * sizeof (glfs_fd_t *));
+ if (!tmp) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ glfd_fd = tmp;
+ memset(glfd_fd+glfd_fd_size, 0, 1024 * sizeof(glfs_fd_t *));
+ glfd_fd_size += 1024;
+ }
+
+ 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 = 42;
+ 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;
+ tmp = realloc(glfs_preopened,
+ (glfs_preopened_size + 16) *
+ sizeof(*glfs_preopened));
+ if (!tmp) {
+ errno = ENOMEM;
+ return -1;
+ }
+ glfs_preopened = tmp;
+ memset(glfs_preopened+glfs_preopened_size, 0,
+ 16 * sizeof(*glfs_preopened));
+ glfs_preopened_size += 16;
+ }
+
+ for (i = 0; i < glfs_preopened_size; i++)
+ if (!glfs_preopened[i].volume)
+ break;
+
+ glfs_preopened[i].volume = strdup (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;
+
+ 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;
+ glfs_t *fs;
+ int ret;
+
+ 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_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 = malloc(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[1024];
+ 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, buf, 1024);
+ 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[1024];
+
+ ret = glfs_fgetxattr (glfd_fd_get (fsp->fh->fd), "system.posix_acl_access",
+ buf, 1024);
+ 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[1024];
+ 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_copy_ext (buf, acl, 1024);
+ 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[1024];
+ acl_t acl;
+ ssize_t size;
+
+ acl = smb_acl_to_posix (theacl);
+ if (!acl)
+ return -1;
+
+ size = acl_copy_ext (buf, acl, 1024);
+ 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/vfs_posixacl.h b/source3/modules/vfs_posixacl.h
index 424cfe9..2259912 100644
--- a/source3/modules/vfs_posixacl.h
+++ b/source3/modules/vfs_posixacl.h
@@ -21,6 +21,8 @@
#ifndef __VFS_POSIXACL_H__
#define __VFS_POSIXACL_H__
+#include <sys/acl.h>
+
SMB_ACL_T posixacl_sys_acl_get_file(vfs_handle_struct *handle,
const char *path_p,
SMB_ACL_TYPE_T type,
diff --git a/source3/modules/wscript_build b/source3/modules/wscript_build
index df4f59a..45654e7 100644
--- a/source3/modules/wscript_build
+++ b/source3/modules/wscript_build
@@ -51,6 +51,7 @@ 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',
@@ -513,3 +514,11 @@ 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 28fa11f..d7e0234 100644
--- a/source3/wscript
+++ b/source3/wscript
@@ -1713,9 +1713,13 @@ main() {
if conf.CHECK_HEADERS('cephfs/libcephfs.h', False, False, 'cephfs') and conf.CHECK_LIB('cephfs'):
conf.DEFINE('HAVE_CEPH', '1')
+
if Options.options.with_regedit:
conf.PROCESS_SEPARATE_RULE('system_ncurses')
+ 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
@@ -1786,6 +1790,9 @@ 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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