s3/modules: Ensure vfs_streaminfo gets passed valid pathref smb_filename

[bbaumbach/samba-autobuild/.git] / source3 / smbd / filename.c

diff --git a/source3/smbd/filename.c b/source3/smbd/filename.c
index 9035c7e82c72cba90dfd55db319508d0cb3fc481..3560837ad1e7ae788cebcc15e778e5d2232a7eeb 100644 (file)
--- a/source3/smbd/filename.c
+++ b/source3/smbd/filename.c
@@ -1720,6 +1720,7 @@ static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
        NTSTATUS status;
        unsigned int i, num_streams = 0;
        struct stream_struct *streams = NULL;
+       struct smb_filename *pathref = NULL;
 
        if (SMB_VFS_STAT(conn, smb_fname) == 0) {
                DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
@@ -1732,12 +1733,36 @@ static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
                goto fail;
        }
 
+       if (smb_fname->fsp == NULL) {
+               status = synthetic_pathref(mem_ctx,
+                                       conn->cwd_fsp,
+                                       smb_fname->base_name,
+                                       NULL,
+                                       NULL,
+                                       smb_fname->twrp,
+                                       smb_fname->flags,
+                                       &pathref);
+               if (!NT_STATUS_IS_OK(status)) {
+                       if (NT_STATUS_EQUAL(status,
+                               NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+                               TALLOC_FREE(pathref);
+                               SET_STAT_INVALID(smb_fname->st);
+                               return NT_STATUS_OK;
+                       }
+                       DBG_DEBUG("synthetic_pathref failed: %s\n",
+                                 nt_errstr(status));
+                       goto fail;
+               }
+       } else {
+               pathref = smb_fname;
+       }
+
        /* Fall back to a case-insensitive scan of all streams on the file. */
-       status = vfs_streaminfo(conn, NULL, smb_fname, mem_ctx,
+       status = vfs_streaminfo(conn, NULL, pathref, mem_ctx,
                                &num_streams, &streams);
-
        if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
                SET_STAT_INVALID(smb_fname->st);
+               TALLOC_FREE(pathref);
                return NT_STATUS_OK;
        }
 
@@ -1760,6 +1785,7 @@ static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
        /* Couldn't find the stream. */
        if (i == num_streams) {
                SET_STAT_INVALID(smb_fname->st);
+               TALLOC_FREE(pathref);
                TALLOC_FREE(streams);
                return NT_STATUS_OK;
        }
@@ -1782,6 +1808,7 @@ static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
        }
        status = NT_STATUS_OK;
  fail:
+       TALLOC_FREE(pathref);
        TALLOC_FREE(streams);
        return status;
 }