#include "includes.h"
#include "smbd/smbd.h"
#include "system/filesys.h"
-#include "../lib/crypto/md5.h"
#include "lib/util/tevent_unix.h"
#include "librpc/gen_ndr/ioctl.h"
+#include "hash_inode.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_VFS
vfs_handle_struct *handle;
};
-static SMB_INO_T stream_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
-{
- MD5_CTX ctx;
- unsigned char hash[16];
- SMB_INO_T result;
- char *upper_sname;
-
- DEBUG(10, ("stream_inode called for %lu/%lu [%s]\n",
- (unsigned long)sbuf->st_ex_dev,
- (unsigned long)sbuf->st_ex_ino, sname));
-
- upper_sname = talloc_strdup_upper(talloc_tos(), sname);
- SMB_ASSERT(upper_sname != NULL);
-
- MD5Init(&ctx);
- MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
- sizeof(sbuf->st_ex_dev));
- MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
- sizeof(sbuf->st_ex_ino));
- MD5Update(&ctx, (unsigned char *)upper_sname,
- talloc_get_size(upper_sname)-1);
- MD5Final(hash, &ctx);
-
- TALLOC_FREE(upper_sname);
-
- /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
- memcpy(&result, hash, sizeof(result));
-
- DEBUG(10, ("stream_inode returns %lu\n", (unsigned long)result));
-
- return result;
-}
-
static ssize_t get_xattr_size(connection_struct *conn,
const struct smb_filename *smb_fname,
const char *xattr_name)
TALLOC_FREE(sio->base);
sio->xattr_name = talloc_strdup(VFS_MEMCTX_FSP_EXTENSION(sio->handle, sio->fsp),
xattr_name);
- sio->base = talloc_strdup(VFS_MEMCTX_FSP_EXTENSION(sio->handle, sio->fsp),
- sio->fsp->fsp_name->base_name);
- sio->fsp_name_ptr = sio->fsp->fsp_name;
-
+ if (sio->xattr_name == NULL) {
+ DBG_DEBUG("sio->xattr_name==NULL\n");
+ return false;
+ }
TALLOC_FREE(xattr_name);
- if ((sio->xattr_name == NULL) || (sio->base == NULL)) {
+ sio->base = talloc_strdup(VFS_MEMCTX_FSP_EXTENSION(sio->handle, sio->fsp),
+ sio->fsp->fsp_name->base_name);
+ if (sio->base == NULL) {
+ DBG_DEBUG("sio->base==NULL\n");
return false;
}
+ sio->fsp_name_ptr = sio->fsp->fsp_name;
+
return true;
}
struct stream_io *io = (struct stream_io *)
VFS_FETCH_FSP_EXTENSION(handle, fsp);
- DBG_DEBUG("streams_xattr_fstat called for %s\n", fsp_str_dbg(io->fsp));
-
if (io == NULL || fsp->base_fsp == NULL) {
return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
}
+ DBG_DEBUG("streams_xattr_fstat called for %s\n", fsp_str_dbg(io->fsp));
+
if (!streams_xattr_recheck(io)) {
return -1;
}
io->base,
NULL,
NULL,
+ fsp->fsp_name->twrp,
fsp->fsp_name->flags);
if (smb_fname_base == NULL) {
errno = ENOMEM;
DEBUG(10, ("sbuf->st_ex_size = %d\n", (int)sbuf->st_ex_size));
- sbuf->st_ex_ino = stream_inode(sbuf, io->xattr_name);
+ sbuf->st_ex_ino = hash_inode(sbuf, io->xattr_name);
sbuf->st_ex_mode &= ~S_IFMT;
+ sbuf->st_ex_mode &= ~S_IFDIR;
sbuf->st_ex_mode |= S_IFREG;
sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
int result = -1;
char *xattr_name = NULL;
- if (!is_ntfs_stream_smb_fname(smb_fname)) {
+ if (!is_named_stream(smb_fname)) {
return SMB_VFS_NEXT_STAT(handle, smb_fname);
}
/* Note if lp_posix_paths() is true, we can never
- * get here as is_ntfs_stream_smb_fname() is
+ * get here as is_named_stream() is
* always false. So we never need worry about
* not following links here. */
- /* If the default stream is requested, just stat the base file. */
- if (is_ntfs_default_stream_smb_fname(smb_fname)) {
- return streams_xattr_stat_base(handle, smb_fname, true);
- }
-
/* Populate the stat struct with info from the base file. */
if (streams_xattr_stat_base(handle, smb_fname, true) == -1) {
return -1;
goto fail;
}
- smb_fname->st.st_ex_ino = stream_inode(&smb_fname->st, xattr_name);
+ smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st, xattr_name);
smb_fname->st.st_ex_mode &= ~S_IFMT;
+ smb_fname->st.st_ex_mode &= ~S_IFDIR;
smb_fname->st.st_ex_mode |= S_IFREG;
smb_fname->st.st_ex_blocks =
smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
int result = -1;
char *xattr_name = NULL;
- if (!is_ntfs_stream_smb_fname(smb_fname)) {
+ if (!is_named_stream(smb_fname)) {
return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
}
- /* If the default stream is requested, just stat the base file. */
- if (is_ntfs_default_stream_smb_fname(smb_fname)) {
- return streams_xattr_stat_base(handle, smb_fname, false);
- }
-
/* Populate the stat struct with info from the base file. */
if (streams_xattr_stat_base(handle, smb_fname, false) == -1) {
return -1;
goto fail;
}
- smb_fname->st.st_ex_ino = stream_inode(&smb_fname->st, xattr_name);
+ smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st, xattr_name);
smb_fname->st.st_ex_mode &= ~S_IFMT;
smb_fname->st.st_ex_mode |= S_IFREG;
smb_fname->st.st_ex_blocks =
return result;
}
-static int streams_xattr_open(vfs_handle_struct *handle,
- struct smb_filename *smb_fname,
- files_struct *fsp, int flags, mode_t mode)
+static int streams_xattr_openat(struct vfs_handle_struct *handle,
+ const struct files_struct *dirfsp,
+ const struct smb_filename *smb_fname,
+ files_struct *fsp,
+ int flags,
+ mode_t mode)
{
NTSTATUS status;
- struct smb_filename *smb_fname_base = NULL;
- struct stream_io *sio;
+ struct streams_xattr_config *config = NULL;
+ struct stream_io *sio = NULL;
struct ea_struct ea;
char *xattr_name = NULL;
- int baseflags;
- int hostfd = -1;
+ int pipe_fds[2];
+ int fakefd = -1;
+ bool set_empty_xattr = false;
int ret;
- DEBUG(10, ("streams_xattr_open called for %s with flags 0x%x\n",
- smb_fname_str_dbg(smb_fname), flags));
-
- if (!is_ntfs_stream_smb_fname(smb_fname)) {
- return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
- }
-
- /* If the default stream is requested, just open the base file. */
- if (is_ntfs_default_stream_smb_fname(smb_fname)) {
- char *tmp_stream_name;
-
- tmp_stream_name = smb_fname->stream_name;
- smb_fname->stream_name = NULL;
+ /*
+ * For now assert this, so the below SMB_VFS_SETXATTR() works.
+ */
+ SMB_ASSERT(dirfsp->fh->fd == AT_FDCWD);
- ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
+ SMB_VFS_HANDLE_GET_DATA(handle, config, struct streams_xattr_config,
+ return -1);
- smb_fname->stream_name = tmp_stream_name;
+ DEBUG(10, ("streams_xattr_open called for %s with flags 0x%x\n",
+ smb_fname_str_dbg(smb_fname), flags));
- return ret;
+ if (!is_named_stream(smb_fname)) {
+ return SMB_VFS_NEXT_OPENAT(handle,
+ dirfsp,
+ smb_fname,
+ fsp,
+ flags,
+ mode);
}
status = streams_xattr_get_name(handle, talloc_tos(),
goto fail;
}
- /* Create an smb_filename with stream_name == NULL. */
- smb_fname_base = synthetic_smb_fname(talloc_tos(),
- smb_fname->base_name,
- NULL,
- NULL,
- smb_fname->flags);
- if (smb_fname_base == NULL) {
- errno = ENOMEM;
- goto fail;
- }
-
- /*
- * We use baseflags to turn off nasty side-effects when opening the
- * underlying file.
- */
- baseflags = flags;
- baseflags &= ~O_TRUNC;
- baseflags &= ~O_EXCL;
- baseflags &= ~O_CREAT;
-
- hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname_base, fsp,
- baseflags, mode);
-
- /* It is legit to open a stream on a directory, but the base
- * fd has to be read-only.
- */
- if ((hostfd == -1) && (errno == EISDIR)) {
- baseflags &= ~O_ACCMODE;
- baseflags |= O_RDONLY;
- hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname_base, fsp, baseflags,
- mode);
- }
-
- TALLOC_FREE(smb_fname_base);
-
- if (hostfd == -1) {
- goto fail;
- }
-
status = get_ea_value(talloc_tos(), handle->conn, NULL,
smb_fname, xattr_name, &ea);
DEBUG(10, ("get_ea_value returned %s\n", nt_errstr(status)));
- if (!NT_STATUS_IS_OK(status)
- && !NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
- /*
- * The base file is not there. This is an error even if we got
- * O_CREAT, the higher levels should have created the base
- * file for us.
- */
- DEBUG(10, ("streams_xattr_open: base file %s not around, "
- "returning ENOENT\n", smb_fname->base_name));
- errno = ENOENT;
- goto fail;
+ if (!NT_STATUS_IS_OK(status)) {
+ if (!NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
+ /*
+ * The base file is not there. This is an error even if
+ * we got O_CREAT, the higher levels should have created
+ * the base file for us.
+ */
+ DBG_DEBUG("streams_xattr_open: base file %s not around, "
+ "returning ENOENT\n", smb_fname->base_name);
+ errno = ENOENT;
+ goto fail;
+ }
+
+ if (!(flags & O_CREAT)) {
+ errno = ENOATTR;
+ goto fail;
+ }
+
+ set_empty_xattr = true;
+ }
+
+ if (flags & O_TRUNC) {
+ set_empty_xattr = true;
}
- if ((!NT_STATUS_IS_OK(status) && (flags & O_CREAT)) ||
- (flags & O_TRUNC)) {
+ if (set_empty_xattr) {
/*
* The attribute does not exist or needs to be truncated
*/
}
}
- sio = (struct stream_io *)VFS_ADD_FSP_EXTENSION(handle, fsp,
- struct stream_io,
- NULL);
+ /*
+ * Return a valid fd, but ensure any attempt to use it returns an error
+ * (EPIPE).
+ */
+ ret = pipe(pipe_fds);
+ if (ret != 0) {
+ goto fail;
+ }
+
+ close(pipe_fds[1]);
+ pipe_fds[1] = -1;
+ fakefd = pipe_fds[0];
+
+ sio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct stream_io, NULL);
if (sio == NULL) {
errno = ENOMEM;
goto fail;
sio->xattr_name = talloc_strdup(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
xattr_name);
+ if (sio->xattr_name == NULL) {
+ errno = ENOMEM;
+ goto fail;
+ }
+
/*
* so->base needs to be a copy of fsp->fsp_name->base_name,
* making it identical to streams_xattr_recheck(). If the
*/
sio->base = talloc_strdup(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
fsp->fsp_name->base_name);
- sio->fsp_name_ptr = fsp->fsp_name;
- sio->handle = handle;
- sio->fsp = fsp;
-
- if ((sio->xattr_name == NULL) || (sio->base == NULL)) {
+ if (sio->base == NULL) {
errno = ENOMEM;
goto fail;
}
- return hostfd;
+ sio->fsp_name_ptr = fsp->fsp_name;
+ sio->handle = handle;
+ sio->fsp = fsp;
+
+ return fakefd;
fail:
- if (hostfd >= 0) {
- /*
- * BUGBUGBUG -- we would need to call fd_close_posix here, but
- * we don't have a full fsp yet
- */
- fsp->fh->fd = hostfd;
- SMB_VFS_NEXT_CLOSE(handle, fsp);
+ if (fakefd >= 0) {
+ close(fakefd);
+ fakefd = -1;
}
return -1;
}
-static int streams_xattr_unlink(vfs_handle_struct *handle,
- const struct smb_filename *smb_fname)
+static int streams_xattr_close(vfs_handle_struct *handle,
+ files_struct *fsp)
{
- NTSTATUS status;
- int ret = -1;
- char *xattr_name = NULL;
+ int ret;
+ int fd;
+
+ fd = fsp->fh->fd;
+
+ DBG_DEBUG("streams_xattr_close called [%s] fd [%d]\n",
+ smb_fname_str_dbg(fsp->fsp_name), fd);
- if (!is_ntfs_stream_smb_fname(smb_fname)) {
- return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
+ if (!is_named_stream(fsp->fsp_name)) {
+ return SMB_VFS_NEXT_CLOSE(handle, fsp);
}
- /* If the default stream is requested, just open the base file. */
- if (is_ntfs_default_stream_smb_fname(smb_fname)) {
- struct smb_filename *smb_fname_base = NULL;
+ ret = close(fd);
+ fsp->fh->fd = -1;
- smb_fname_base = cp_smb_filename(talloc_tos(), smb_fname);
- if (smb_fname_base == NULL) {
- errno = ENOMEM;
- return -1;
- }
+ return ret;
+}
- ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname_base);
+static int streams_xattr_unlink_internal(vfs_handle_struct *handle,
+ struct files_struct *dirfsp,
+ const struct smb_filename *smb_fname,
+ int flags)
+{
+ NTSTATUS status;
+ int ret = -1;
+ char *xattr_name = NULL;
- TALLOC_FREE(smb_fname_base);
- return ret;
+ if (!is_named_stream(smb_fname)) {
+ return SMB_VFS_NEXT_UNLINKAT(handle,
+ dirfsp,
+ smb_fname,
+ flags);
}
status = streams_xattr_get_name(handle, talloc_tos(),
return ret;
}
-static int streams_xattr_rename(vfs_handle_struct *handle,
+static int streams_xattr_unlinkat(vfs_handle_struct *handle,
+ struct files_struct *dirfsp,
+ const struct smb_filename *smb_fname,
+ int flags)
+{
+ int ret;
+ if (flags & AT_REMOVEDIR) {
+ ret = SMB_VFS_NEXT_UNLINKAT(handle,
+ dirfsp,
+ smb_fname,
+ flags);
+ } else {
+ ret = streams_xattr_unlink_internal(handle,
+ dirfsp,
+ smb_fname,
+ flags);
+ }
+ return ret;
+}
+
+static int streams_xattr_renameat(vfs_handle_struct *handle,
+ files_struct *srcfsp,
const struct smb_filename *smb_fname_src,
+ files_struct *dstfsp,
const struct smb_filename *smb_fname_dst)
{
NTSTATUS status;
dst_is_stream = is_ntfs_stream_smb_fname(smb_fname_dst);
if (!src_is_stream && !dst_is_stream) {
- return SMB_VFS_NEXT_RENAME(handle, smb_fname_src,
- smb_fname_dst);
+ return SMB_VFS_NEXT_RENAMEAT(handle,
+ srcfsp,
+ smb_fname_src,
+ dstfsp,
+ smb_fname_dst);
}
/* For now don't allow renames from or to the default stream. */
sio->base,
NULL,
NULL,
+ fsp->fsp_name->twrp,
fsp->fsp_name->flags);
if (smb_fname_base == NULL) {
errno = ENOMEM;
sio->base,
NULL,
NULL,
+ fsp->fsp_name->twrp,
fsp->fsp_name->flags);
if (smb_fname_base == NULL) {
errno = ENOMEM;
sio->base,
NULL,
NULL,
+ fsp->fsp_name->twrp,
fsp->fsp_name->flags);
if (smb_fname_base == NULL) {
errno = ENOMEM;
return 0;
}
-static int streams_xattr_fsync(vfs_handle_struct *handle, files_struct *fsp)
-{
- struct stream_io *sio =
- (struct stream_io *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
-
- if (sio == NULL) {
- return SMB_VFS_NEXT_FSYNC(handle, fsp);
- }
-
- return 0;
-}
-
static ssize_t streams_xattr_fgetxattr(struct vfs_handle_struct *handle,
struct files_struct *fsp,
const char *name,
return -1;
}
-static int streams_xattr_fchmod_acl(vfs_handle_struct *handle,
- files_struct *fsp,
- mode_t mode)
-{
- struct stream_io *sio =
- (struct stream_io *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
-
- if (sio == NULL) {
- return SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, mode);
- }
-
- return 0;
-}
-
static SMB_ACL_T streams_xattr_sys_acl_get_fd(vfs_handle_struct *handle,
files_struct *fsp,
TALLOC_CTX *mem_ctx)
mem_ctx, ppdesc);
}
- return SMB_VFS_NEXT_GET_NT_ACL(handle, fsp->base_fsp->fsp_name,
- security_info, mem_ctx, ppdesc);
+ return SMB_VFS_NEXT_GET_NT_ACL_AT(handle,
+ handle->conn->cwd_fsp,
+ fsp->base_fsp->fsp_name,
+ security_info,
+ mem_ctx,
+ ppdesc);
}
static NTSTATUS streams_xattr_fset_nt_acl(vfs_handle_struct *handle,
static int streams_xattr_kernel_flock(vfs_handle_struct *handle,
files_struct *fsp,
- uint32_t share_mode,
+ uint32_t share_access,
uint32_t access_mask)
{
struct stream_io *sio =
if (sio == NULL) {
return SMB_VFS_NEXT_KERNEL_FLOCK(handle, fsp,
- share_mode, access_mask);
+ share_access, access_mask);
}
return 0;
return true;
}
-static NTSTATUS streams_xattr_get_compression(struct vfs_handle_struct *handle,
- TALLOC_CTX *mem_ctx,
- struct files_struct *fsp,
- struct smb_filename *smb_fname,
- uint16_t *_compression_fmt)
-{
- struct stream_io *sio =
- (struct stream_io *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
-
- if (sio == NULL) {
- return SMB_VFS_NEXT_GET_COMPRESSION(handle, mem_ctx, fsp,
- smb_fname, _compression_fmt);
- }
-
- *_compression_fmt = COMPRESSION_FORMAT_NONE;
- return NT_STATUS_OK;
-}
-
-static NTSTATUS streams_xattr_set_compression(struct vfs_handle_struct *handle,
- TALLOC_CTX *mem_ctx,
- struct files_struct *fsp,
- uint16_t compression_fmt)
-{
- struct stream_io *sio =
- (struct stream_io *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
-
- if (sio == NULL) {
- return SMB_VFS_NEXT_SET_COMPRESSION(handle, mem_ctx, fsp,
- compression_fmt);
- }
-
- return NT_STATUS_NOT_SUPPORTED;
-}
-
static struct vfs_fn_pointers vfs_streams_xattr_fns = {
.fs_capabilities_fn = streams_xattr_fs_capabilities,
.connect_fn = streams_xattr_connect,
- .open_fn = streams_xattr_open,
+ .openat_fn = streams_xattr_openat,
+ .close_fn = streams_xattr_close,
.stat_fn = streams_xattr_stat,
.fstat_fn = streams_xattr_fstat,
.lstat_fn = streams_xattr_lstat,
.pread_recv_fn = streams_xattr_pread_recv,
.pwrite_send_fn = streams_xattr_pwrite_send,
.pwrite_recv_fn = streams_xattr_pwrite_recv,
- .unlink_fn = streams_xattr_unlink,
- .rename_fn = streams_xattr_rename,
+ .unlinkat_fn = streams_xattr_unlinkat,
+ .renameat_fn = streams_xattr_renameat,
.ftruncate_fn = streams_xattr_ftruncate,
.fallocate_fn = streams_xattr_fallocate,
.streaminfo_fn = streams_xattr_streaminfo,
.linux_setlease_fn = streams_xattr_linux_setlease,
.strict_lock_check_fn = streams_xattr_strict_lock_check,
- .get_compression_fn = streams_xattr_get_compression,
- .set_compression_fn = streams_xattr_set_compression,
-
.fchown_fn = streams_xattr_fchown,
.fchmod_fn = streams_xattr_fchmod,
- .fsync_fn = streams_xattr_fsync,
.fgetxattr_fn = streams_xattr_fgetxattr,
.flistxattr_fn = streams_xattr_flistxattr,
.fremovexattr_fn = streams_xattr_fremovexattr,
.fsetxattr_fn = streams_xattr_fsetxattr,
- .fchmod_acl_fn = streams_xattr_fchmod_acl,
-
.sys_acl_get_fd_fn = streams_xattr_sys_acl_get_fd,
.sys_acl_blob_get_fd_fn = streams_xattr_sys_acl_blob_get_fd,
.sys_acl_set_fd_fn = streams_xattr_sys_acl_set_fd,
.fset_nt_acl_fn = streams_xattr_fset_nt_acl,
};
-NTSTATUS vfs_streams_xattr_init(TALLOC_CTX *);
+static_decl_vfs;
NTSTATUS vfs_streams_xattr_init(TALLOC_CTX *ctx)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "streams_xattr",
git.samba.org / amitay / samba.git / blobdiff