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-rw-r--r--source3/include/vfs.h10
-rw-r--r--source3/include/vfs_macros.h3
-rw-r--r--source3/modules/vfs_default.c59
-rw-r--r--source3/smbd/trans2.c112
4 files changed, 171 insertions, 13 deletions
diff --git a/source3/include/vfs.h b/source3/include/vfs.h
index 3109a5c3e4..cda28a1680 100644
--- a/source3/include/vfs.h
+++ b/source3/include/vfs.h
@@ -104,6 +104,7 @@
/* Leave at 22 - not yet released. Remove parameter fromfd from sendfile. - obnox */
/* Leave at 22 - not yet released. Remove parameter fromfd from recvfile. - obnox */
/* Leave at 22 - not yet released. Additional change: add operations for offline files -- ab */
+/* Leave at 22 - not yet released. Add the streaminfo call. -- jpeach, vl */
#define SMB_VFS_INTERFACE_VERSION 22
@@ -198,6 +199,7 @@ typedef enum _vfs_op_type {
SMB_VFS_OP_NOTIFY_WATCH,
SMB_VFS_OP_CHFLAGS,
SMB_VFS_OP_FILE_ID_CREATE,
+ SMB_VFS_OP_STREAMINFO,
/* NT ACL operations. */
@@ -339,6 +341,13 @@ struct vfs_ops {
int (*chflags)(struct vfs_handle_struct *handle, const char *path, unsigned int flags);
struct file_id (*file_id_create)(struct vfs_handle_struct *handle, SMB_DEV_T dev, SMB_INO_T inode);
+ NTSTATUS (*streaminfo)(struct vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ const char *fname,
+ TALLOC_CTX *mem_ctx,
+ unsigned int *num_streams,
+ struct stream_struct **streams);
+
/* NT ACL operations. */
NTSTATUS (*fget_nt_acl)(struct vfs_handle_struct *handle,
@@ -476,6 +485,7 @@ struct vfs_ops {
struct vfs_handle_struct *notify_watch;
struct vfs_handle_struct *chflags;
struct vfs_handle_struct *file_id_create;
+ struct vfs_handle_struct *streaminfo;
/* NT ACL operations. */
diff --git a/source3/include/vfs_macros.h b/source3/include/vfs_macros.h
index dd30f977dc..1674f26326 100644
--- a/source3/include/vfs_macros.h
+++ b/source3/include/vfs_macros.h
@@ -82,6 +82,7 @@
#define SMB_VFS_NOTIFY_WATCH(conn, ctx, e, callback, private_data, handle_p) ((conn)->vfs.ops.notify_watch((conn)->vfs.handles.notify_watch, (ctx), (e), (callback), (private_data), (handle_p)))
#define SMB_VFS_CHFLAGS(conn, path, flags) ((conn)->vfs.ops.chflags((conn)->vfs.handles.chflags, (path), (flags)))
#define SMB_VFS_FILE_ID_CREATE(conn, dev, inode) ((conn)->vfs.ops.file_id_create((conn)->vfs.handles.file_id_create, (dev), (inode)))
+#define SMB_VFS_STREAMINFO(conn, fsp, fname, mem_ctx, num_streams, streams) ((conn)->vfs.ops.streaminfo((conn)->vfs.handles.streaminfo, (fsp), (fname), (mem_ctx), (num_streams), (streams)))
/* NT ACL operations. */
#define SMB_VFS_FGET_NT_ACL(fsp, security_info, ppdesc) ((fsp)->conn->vfs.ops.fget_nt_acl((fsp)->conn->vfs.handles.fget_nt_acl, (fsp), (security_info), (ppdesc)))
@@ -206,6 +207,7 @@
#define SMB_VFS_OPAQUE_NOTIFY_WATCH(conn, ctx, e, callback, private_data, handle_p) ((conn)->vfs_opaque.ops.notify_watch((conn)->vfs_opaque.handles.notify_watch, (ctx), (e), (callback), (private_data), (handle_p)))
#define SMB_VFS_OPAQUE_CHFLAGS(conn, path, flags) ((conn)->vfs_opaque.ops.chflags((conn)->vfs_opaque.handles.chflags, (path), (flags)))
#define SMB_VFS_OPAQUE_FILE_ID_CREATE(conn, dev, inode) ((conn)->vfs.ops_opaque.file_id_create((conn)->vfs_opaque.handles.file_id_create, (dev), (inode)))
+#define SMB_VFS_OPAQUE_STREAMINFO(conn, fsp, fname, mem_ctx, num_streams, streams) ((conn)->vfs_opaque.ops.streaminfo((conn)->vfs_opaque.handles.streaminfo, (fsp), (fname), (mem_ctx), (num_streams), (streams)))
/* NT ACL operations. */
#define SMB_VFS_OPAQUE_FGET_NT_ACL(fsp, security_info, ppdesc) ((fsp)->conn->vfs_opaque.ops.fget_nt_acl((fsp)->conn->vfs_opaque.handles.fget_nt_acl, (fsp), (security_info), (ppdesc)))
@@ -331,6 +333,7 @@
#define SMB_VFS_NEXT_NOTIFY_WATCH(conn, ctx, e, callback, private_data, handle_p) ((conn)->vfs_next.ops.notify_watch((conn)->vfs_next.handles.notify_watch, (ctx), (e), (callback), (private_data), (handle_p)))
#define SMB_VFS_NEXT_CHFLAGS(handle, path, flags) ((handle)->vfs_next.ops.chflags((handle)->vfs_next.handles.chflags, (path), (flags)))
#define SMB_VFS_NEXT_FILE_ID_CREATE(handle, dev, inode) ((handle)->vfs_next.ops.file_id_create((handle)->vfs_next.handles.file_id_create, (dev), (inode)))
+#define SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx, num_streams, streams) ((handle)->vfs.ops.streaminfo((handle)->vfs.handles.streaminfo, (fsp), (fname), (mem_ctx), (num_streams), (streams)))
/* NT ACL operations. */
#define SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, ppdesc) ((handle)->vfs_next.ops.fget_nt_acl((handle)->vfs_next.handles.fget_nt_acl, (fsp), (security_info), (ppdesc)))
diff --git a/source3/modules/vfs_default.c b/source3/modules/vfs_default.c
index 31234f23ec..2e620d04cc 100644
--- a/source3/modules/vfs_default.c
+++ b/source3/modules/vfs_default.c
@@ -942,6 +942,63 @@ static struct file_id vfswrap_file_id_create(struct vfs_handle_struct *handle, S
return file_id_create_dev(dev, inode);
}
+static NTSTATUS vfswrap_streaminfo(vfs_handle_struct *handle,
+ struct files_struct *fsp,
+ const char *fname,
+ TALLOC_CTX *mem_ctx,
+ unsigned int *pnum_streams,
+ struct stream_struct **pstreams)
+{
+ SMB_STRUCT_STAT sbuf;
+ NTSTATUS status;
+ unsigned int num_streams = 0;
+ struct stream_struct *streams = NULL;
+ int ret;
+
+ if ((fsp != NULL) && (fsp->is_directory)) {
+ /*
+ * No default streams on directories
+ */
+ goto done;
+ }
+
+ if ((fsp != NULL) && (fsp->fh->fd != -1)) {
+ ret = SMB_VFS_FSTAT(fsp, &sbuf);
+ }
+ else {
+ ret = SMB_VFS_STAT(handle->conn, fname, &sbuf);
+ }
+
+ if (ret == -1) {
+ return map_nt_error_from_unix(errno);
+ }
+
+ if (S_ISDIR(sbuf.st_mode)) {
+ goto done;
+ }
+
+ streams = talloc(mem_ctx, struct stream_struct);
+
+ if (streams == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ streams->size = sbuf.st_size;
+ streams->alloc_size = get_allocation_size(handle->conn, fsp, &sbuf);
+
+ streams->name = talloc_strdup(streams, "::$DATA");
+ if (streams->name == NULL) {
+ TALLOC_FREE(streams);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ num_streams = 1;
+ done:
+ *pnum_streams = num_streams;
+ *pstreams = streams;
+ return NT_STATUS_OK;
+}
+
static NTSTATUS vfswrap_fget_nt_acl(vfs_handle_struct *handle,
files_struct *fsp,
uint32 security_info, SEC_DESC **ppdesc)
@@ -1367,6 +1424,8 @@ static vfs_op_tuple vfs_default_ops[] = {
SMB_VFS_LAYER_OPAQUE},
{SMB_VFS_OP(vfswrap_file_id_create), SMB_VFS_OP_FILE_ID_CREATE,
SMB_VFS_LAYER_OPAQUE},
+ {SMB_VFS_OP(vfswrap_streaminfo), SMB_VFS_OP_STREAMINFO,
+ SMB_VFS_LAYER_OPAQUE},
/* NT ACL operations. */
diff --git a/source3/smbd/trans2.c b/source3/smbd/trans2.c
index 53eff65b54..d56a0dab09 100644
--- a/source3/smbd/trans2.c
+++ b/source3/smbd/trans2.c
@@ -5,7 +5,7 @@
Copyright (C) Stefan (metze) Metzmacher 2003
Copyright (C) Volker Lendecke 2005-2007
Copyright (C) Steve French 2005
- Copyright (C) James Peach 2007
+ Copyright (C) James Peach 2006-2007
Extensively modified by Andrew Tridgell, 1995
@@ -3568,6 +3568,72 @@ static char *store_file_unix_basic_info2(connection_struct *conn,
return pdata;
}
+static NTSTATUS marshall_stream_info(unsigned int num_streams,
+ const struct stream_struct *streams,
+ char *data,
+ unsigned int max_data_bytes,
+ unsigned int *data_size)
+{
+ unsigned int i;
+ unsigned int ofs = 0;
+
+ for (i=0; i<num_streams; i++) {
+ unsigned int next_offset;
+ size_t namelen;
+ smb_ucs2_t *namebuf;
+
+ namelen = push_ucs2_talloc(talloc_tos(), &namebuf,
+ streams[i].name);
+
+ if ((namelen == (size_t)-1) || (namelen <= 2)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /*
+ * name_buf is now null-terminated, we need to marshall as not
+ * terminated
+ */
+
+ namelen -= 2;
+
+ if (ofs + 24 + namelen > max_data_bytes) {
+ TALLOC_FREE(namebuf);
+ return NT_STATUS_BUFFER_TOO_SMALL;
+ }
+
+ SIVAL(data, ofs+4, namelen);
+ SOFF_T(data, ofs+8, streams[i].size);
+ SOFF_T(data, ofs+16, streams[i].alloc_size);
+ memcpy(data+ofs+24, namebuf, namelen);
+ TALLOC_FREE(namebuf);
+
+ next_offset = ofs + 24 + namelen;
+
+ if (i == num_streams-1) {
+ SIVAL(data, ofs, 0);
+ }
+ else {
+ unsigned int align = ndr_align_size(next_offset, 8);
+
+ if (next_offset + align > max_data_bytes) {
+ return NT_STATUS_BUFFER_TOO_SMALL;
+ }
+
+ memset(data+next_offset, 0, align);
+ next_offset += align;
+
+ SIVAL(data, ofs, next_offset - ofs);
+ ofs = next_offset;
+ }
+
+ ofs = next_offset;
+ }
+
+ *data_size = ofs;
+
+ return NT_STATUS_OK;
+}
+
/****************************************************************************
Reply to a TRANSACT2_QFILEINFO on a PIPE !
****************************************************************************/
@@ -4273,20 +4339,40 @@ total_data=%u (should be %u)\n", (unsigned int)total_data, (unsigned int)IVAL(pd
*/
case SMB_QUERY_FILE_STREAM_INFO:
#endif
- case SMB_FILE_STREAM_INFORMATION:
- DEBUG(10,("call_trans2qfilepathinfo: SMB_FILE_STREAM_INFORMATION\n"));
- if (mode & aDIR) {
- data_size = 0;
- } else {
- size_t byte_len = dos_PutUniCode(pdata+24,"::$DATA", (size_t)0xE, False);
- SIVAL(pdata,0,0); /* ??? */
- SIVAL(pdata,4,byte_len); /* Byte length of unicode string ::$DATA */
- SOFF_T(pdata,8,file_size);
- SOFF_T(pdata,16,allocation_size);
- data_size = 24 + byte_len;
+ case SMB_FILE_STREAM_INFORMATION: {
+ unsigned int num_streams;
+ struct stream_struct *streams;
+ NTSTATUS status;
+
+ DEBUG(10,("call_trans2qfilepathinfo: "
+ "SMB_FILE_STREAM_INFORMATION\n"));
+
+ status = SMB_VFS_STREAMINFO(
+ conn, fsp, fname, talloc_tos(),
+ &num_streams, &streams);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("could not get stream info: %s\n",
+ nt_errstr(status)));
+ reply_nterror(req, status);
+ return;
}
- break;
+ status = marshall_stream_info(num_streams, streams,
+ pdata, max_data_bytes,
+ &data_size);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("marshall_stream_info failed: %s\n",
+ nt_errstr(status)));
+ reply_nterror(req, status);
+ return;
+ }
+
+ TALLOC_FREE(streams);
+
+ break;
+ }
case SMB_QUERY_COMPRESSION_INFO:
case SMB_FILE_COMPRESSION_INFORMATION:
DEBUG(10,("call_trans2qfilepathinfo: SMB_FILE_COMPRESSION_INFORMATION\n"));
generated by cgit (git 2.34.1) at 2024-12-14 15:56:37 +0000