1 files changed, 89 insertions, 0 deletions
diff --git a/source4/libcli/smb2/read.c b/source4/libcli/smb2/read.c
new file mode 100644
index 0000000..ca487a7
--- /dev/null
+++ b/source4/libcli/smb2/read.c
@@ -0,0 +1,89 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   SMB2 client read call
+
+   Copyright (C) Andrew Tridgell 2005
+   
+   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 "libcli/smb2/smb2.h"
+#include "libcli/smb2/smb2_calls.h"
+
+/*
+  send a read request
+*/
+struct smb2_request *smb2_read_send(struct smb2_tree *tree, struct smb2_read *io)
+{
+	struct smb2_request *req;
+
+	req = smb2_request_init_tree(tree, SMB2_OP_READ, 0x30, true, 0);
+	if (req == NULL) return NULL;
+
+	SCVAL(req->out.body, 0x02, 0); /* pad */
+	SCVAL(req->out.body, 0x03, 0); /* reserved */
+	SIVAL(req->out.body, 0x04, io->in.length);
+	SBVAL(req->out.body, 0x08, io->in.offset);
+	smb2_push_handle(req->out.body+0x10, &io->in.file.handle);
+	SIVAL(req->out.body, 0x20, io->in.min_count);
+	SIVAL(req->out.body, 0x24, io->in.channel);
+	SIVAL(req->out.body, 0x28, io->in.remaining);
+	SSVAL(req->out.body, 0x2C, io->in.channel_offset);
+	SSVAL(req->out.body, 0x2E, io->in.channel_length);
+
+	req->credit_charge = (MAX(io->in.length, 1) - 1)/ 65536 + 1;
+
+	smb2_transport_send(req);
+
+	return req;
+}
+
+
+/*
+  recv a read reply
+*/
+NTSTATUS smb2_read_recv(struct smb2_request *req, 
+			TALLOC_CTX *mem_ctx, struct smb2_read *io)
+{
+	NTSTATUS status;
+
+	if (!smb2_request_receive(req) || 
+	    !smb2_request_is_ok(req)) {
+		return smb2_request_destroy(req);
+	}
+
+	SMB2_CHECK_PACKET_RECV(req, 0x10, true);
+
+	status = smb2_pull_o16s32_blob(&req->in, mem_ctx, req->in.body+0x02, &io->out.data);
+	if (!NT_STATUS_IS_OK(status)) {
+		smb2_request_destroy(req);
+		return status;
+	}
+
+	io->out.remaining = IVAL(req->in.body, 0x08);
+	io->out.reserved  = IVAL(req->in.body, 0x0C);
+
+	return smb2_request_destroy(req);
+}
+
+/*
+  sync read request
+*/
+NTSTATUS smb2_read(struct smb2_tree *tree, TALLOC_CTX *mem_ctx, struct smb2_read *io)
+{
+	struct smb2_request *req = smb2_read_send(tree, io);
+	return smb2_read_recv(req, mem_ctx, io);
+}