r16989: implement SMB2 Notify in the frontend

metze
(This used to be commit 156bd4620c5b0f917a2ab6be5e6a2fdcf9403676)

1 files changed, 75 insertions, 1 deletions

diff --git a/source4/smb_server/smb2/fileio.c b/source4/smb_server/smb2/fileio.c
index fa35afce7e..948c53d9e6 100644
--- a/source4/smb_server/smb2/fileio.c
+++ b/source4/smb_server/smb2/fileio.c
@@ -291,9 +291,83 @@ void smb2srv_cancel_recv(struct smb2srv_request *req)
 	smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED);
 }
 
+static void smb2srv_notify_send(struct ntvfs_request *ntvfs)
+{
+	struct smb2srv_request *req;
+	union smb_notify *io;
+	size_t size = 0;
+	int i;
+	uint8_t *p;
+	DATA_BLOB blob = data_blob(NULL, 0);
+
+	SMB2SRV_CHECK_ASYNC_STATUS(io, union smb_notify);
+	SMB2SRV_CHECK(smb2srv_setup_reply(req, 0x08, True, 0));
+
+#define MAX_BYTES_PER_CHAR 3
+	
+	/* work out how big the reply buffer could be */
+	for (i=0;i<io->smb2.out.num_changes;i++) {
+		size += 12 + 3 + (1+strlen(io->smb2.out.changes[i].name.s)) * MAX_BYTES_PER_CHAR;
+	}
+
+	blob = data_blob_talloc(req, NULL, size);
+	if (size > 0 && !blob.data) {
+		SMB2SRV_CHECK(NT_STATUS_NO_MEMORY);
+	}
+
+	p = blob.data;
+
+	/* construct the changes buffer */
+	for (i=0;i<io->smb2.out.num_changes;i++) {
+		uint32_t ofs;
+		ssize_t len;
+
+		SIVAL(p, 4, io->smb2.out.changes[i].action);
+		len = push_string(p + 12, io->smb2.out.changes[i].name.s, 
+				  blob.length - (p+12 - blob.data), STR_UNICODE);
+		SIVAL(p, 8, len);
+
+		ofs = len + 12;
+
+		if (ofs & 3) {
+			int pad = 4 - (ofs & 3);
+			memset(p+ofs, 0, pad);
+			ofs += pad;
+		}
+
+		if (i == io->smb2.out.num_changes-1) {
+			SIVAL(p, 0, 0);
+		} else {
+			SIVAL(p, 0, ofs);
+		}
+
+		p += ofs;
+	}
+
+	blob.length = p - blob.data;
+
+	SMB2SRV_CHECK(smb2_push_o16s32_blob(&req->out, 0x02, blob));
+
+	smb2srv_send_reply(req);
+}
+
 void smb2srv_notify_recv(struct smb2srv_request *req)
 {
-	smb2srv_send_error(req, NT_STATUS_NOT_IMPLEMENTED);
+	union smb_notify *io;
+
+	SMB2SRV_CHECK_BODY_SIZE(req, 0x20, False);
+	SMB2SRV_TALLOC_IO_PTR(io, union smb_notify);
+	SMB2SRV_SETUP_NTVFS_REQUEST(smb2srv_notify_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
+
+	io->smb2.level			= RAW_NOTIFY_SMB2;
+	io->smb2.in.recursive		= SVAL(req->in.body, 0x02);
+	io->smb2.in.buffer_size		= IVAL(req->in.body, 0x04);
+	io->smb2.in.file.ntvfs		= smb2srv_pull_handle(req, req->in.body, 0x08);
+	io->smb2.in.completion_filter	= IVAL(req->in.body, 0x18);
+	io->smb2.in.unknown		= BVAL(req->in.body, 0x1C);
+
+	SMB2SRV_CHECK_FILE_HANDLE(io->smb2.in.file.ntvfs);
+	SMB2SRV_CALL_NTVFS_BACKEND(ntvfs_notify(req->ntvfs, io));
 }
 
 void smb2srv_break_recv(struct smb2srv_request *req)