Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 204 insertions, 0 deletions

diff --git a/source4/libcli/smb2/smb2.h b/source4/libcli/smb2/smb2.h
new file mode 100644
index 0000000..4aadab2
--- /dev/null
+++ b/source4/libcli/smb2/smb2.h
@@ -0,0 +1,204 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   SMB2 client library header
+
+   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/>.
+*/
+
+#ifndef __LIBCLI_SMB2_SMB2_H__
+#define __LIBCLI_SMB2_SMB2_H__
+
+#include "libcli/raw/request.h"
+#include "libcli/raw/libcliraw.h"
+
+struct smb2_handle;
+struct smb2_lease_break;
+
+struct smb2_request_buffer {
+	/* the raw SMB2 buffer, including the 4 byte length header */
+	uint8_t *buffer;
+
+	/* the size of the raw buffer, including 4 byte header */
+	size_t size;
+
+	/* how much has been allocated - on reply the buffer is over-allocated to
+	   prevent too many realloc() calls
+	*/
+	size_t allocated;
+
+	/* the start of the SMB2 header - this is always buffer+4 */
+	uint8_t *hdr;
+
+	/* the packet body */
+	uint8_t *body;
+	size_t body_fixed;
+	size_t body_size;
+
+	/* this point to the next dynamic byte that can be used
+	 * this will be moved when some dynamic data is pushed
+	 */
+	uint8_t *dynamic;
+
+	/* this is used to range check and align strings and buffers */
+	struct request_bufinfo bufinfo;
+};
+
+/* this is the context for the smb2 transport layer */
+struct smb2_transport {
+	struct tevent_context *ev; /* TODO: remove this !!! */
+	struct smbXcli_conn *conn;
+
+	/* the details for coumpounded requests */
+	struct {
+		bool related;
+		struct tevent_req **reqs;
+	} compound;
+
+	/* an idle function - if this is defined then it will be
+	   called once every period microseconds while we are waiting
+	   for a packet */
+	struct {
+		void (*func)(struct smb2_transport *, void *);
+		void *private_data;
+		unsigned int period;
+		struct tevent_timer *te;
+	} idle;
+
+	struct {
+		/* a oplock break request handler */
+		bool (*handler)(struct smb2_transport *transport,
+				const struct smb2_handle *handle,
+				uint8_t level, void *private_data);
+		/* private data passed to the oplock handler */
+		void *private_data;
+	} oplock;
+
+	struct {
+		/* a lease break request handler */
+		bool (*handler)(struct smb2_transport *transport,
+				const struct smb2_lease_break *lease_break,
+				void *private_data);
+		/* private data passed to the oplock handler */
+		void *private_data;
+	} lease;
+	struct tevent_req *break_subreq;
+
+	struct smbcli_options options;
+};
+
+
+/*
+  SMB2 LSA state
+*/
+struct smb2lsa_state {
+	struct dcerpc_binding_handle *binding_handle;
+	struct smb2_tree *ipc_tree;
+	struct policy_handle handle;
+};
+
+
+/*
+  SMB2 tree context
+*/
+struct smb2_tree {
+	struct smb2_session *session;
+	struct smbXcli_tcon *smbXcli;
+	struct smb2lsa_state *lsa;
+};
+
+/*
+  SMB2 session context
+*/
+struct smb2_session {
+	struct smb2_transport *transport;
+	struct gensec_security *gensec;
+	struct smbXcli_session *smbXcli;
+	bool needs_bind;
+};
+
+
+
+/*
+  a client request moves between the following 4 states.
+*/
+enum smb2_request_state {SMB2_REQUEST_INIT, /* we are creating the request */
+			SMB2_REQUEST_RECV, /* we are waiting for a matching reply */
+			SMB2_REQUEST_DONE, /* the request is finished */
+			SMB2_REQUEST_ERROR}; /* a packet or transport level error has occurred */
+
+/* the context for a single SMB2 request */
+struct smb2_request {
+	/* each request is in one of 3 possible states */
+	enum smb2_request_state state;
+
+	struct tevent_req *subreq;
+
+	struct smb2_transport *transport;
+	struct smb2_session   *session;
+	struct smb2_tree      *tree;
+
+	struct {
+		bool can_cancel;
+	} cancel;
+
+	/* the NT status for this request. Set by packet receive code
+	   or code detecting error. */
+	NTSTATUS status;
+
+	struct smb2_request_buffer in;
+	struct smb2_request_buffer out;
+	struct iovec *recv_iov;
+
+	uint16_t credit_charge;
+
+	/* information on what to do with a reply when it is received
+	   asyncronously. If this is not setup when a reply is received then
+	   the reply is discarded
+
+	   The private pointer is private to the caller of the client
+	   library (the application), not private to the library
+	*/
+	struct {
+		void (*fn)(struct smb2_request *);
+		void *private_data;
+	} async;
+};
+
+
+#define SMB2_MIN_SIZE 0x42
+#define SMB2_MIN_SIZE_NO_BODY 0x40
+
+/*
+  check that a body has the expected size
+*/
+#define SMB2_CHECK_PACKET_RECV(req, size, dynamic) do { \
+	size_t is_size = req->in.body_size; \
+	uint16_t field_size = SVAL(req->in.body, 0); \
+	uint16_t want_size = ((dynamic)?(size)+1:(size)); \
+	if (is_size < (size)) { \
+		DEBUG(0,("%s: buffer too small 0x%x. Expected 0x%x\n", \
+			 __location__, (unsigned)is_size, (unsigned)want_size)); \
+		return NT_STATUS_BUFFER_TOO_SMALL; \
+	}\
+	if (field_size != want_size) { \
+		DEBUG(0,("%s: unexpected fixed body size 0x%x. Expected 0x%x\n", \
+			 __location__, (unsigned)field_size, (unsigned)want_size)); \
+		return NT_STATUS_INVALID_PARAMETER; \
+	} \
+} while (0)
+
+#endif