r11662: the beginnings of a SMB2 client library. Very hackish, meant for experimentation

(This used to be commit 68422dc73f6ea51bf906f3db223ae8abf077aba1)

1 files changed, 154 insertions, 0 deletions

diff --git a/source4/libcli/smb2/smb2.h b/source4/libcli/smb2/smb2.h
new file mode 100644
index 0000000000..2e01159355
--- /dev/null
+++ b/source4/libcli/smb2/smb2.h
@@ -0,0 +1,154 @@
+/* 
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+struct smb2_options {
+	uint32_t timeout;
+};
+
+/*
+  information returned from the negotiate response
+*/
+struct smb2_negotiate {
+	DATA_BLOB secblob;
+	
+};
+
+/* this is the context for the smb2 transport layer */
+struct smb2_transport {
+	/* socket level info */
+	struct smbcli_socket *socket;
+
+	struct smb2_options options;
+	struct smb2_negotiate negotiate;
+
+	/* next seqnum to allocate */
+	uint64_t seqnum;
+
+	/* a list of requests that are pending for receive on this
+	   connection */
+	struct smb2_request *pending_recv;
+
+	/* context of the stream -> packet parser */
+	struct packet_context *packet;
+};
+
+
+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 */
+	uint_t size;
+	
+	/* how much has been allocated - on reply the buffer is over-allocated to 
+	   prevent too many realloc() calls 
+	*/
+	uint_t allocated;
+	
+	/* the start of the SMB2 header - this is always buffer+4 */
+	uint8_t *hdr;
+	
+	/* the packet body */
+	uint8_t *body;
+	uint_t body_size;
+	
+	/* ptr is used as a moving pointer into the data area
+	 * of the packet. The reason its here and not a local
+	 * variable in each function is that when a realloc of
+	 * a send packet is done we need to move this
+	 * pointer */
+	uint8_t *ptr;
+};
+
+
+/*
+  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 {
+	/* allow a request to be part of a list of requests */
+	struct smb2_request *next, *prev;
+
+	/* each request is in one of 3 possible states */
+	enum smb2_request_state state;
+	
+	struct smb2_transport *transport;
+
+	uint64_t seqnum;
+
+	/* 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;
+
+	/* 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;
+	} async;
+};
+
+
+#define SMB2_MIN_SIZE 0x40
+
+/* offsets into header elements */
+#define SMB2_HDR_LENGTH  0x04
+#define SMB2_HDR_PAD1    0x06
+#define SMB2_HDR_STATUS  0x08
+#define SMB2_HDR_OPCODE  0x0c
+#define SMB2_HDR_PAD2    0x0e
+#define SMB2_HDR_FLAGS   0x10
+#define SMB2_HDR_UNKNOWN 0x14
+#define SMB2_HDR_SEQNUM  0x18
+#define SMB2_HDR_PID     0x20
+#define SMB2_HDR_TID     0x24
+#define SMB2_HDR_UID     0x28
+#define SMB2_HDR_UID2    0x2c /* whats this? */
+#define SMB2_HDR_SIG     0x30 /* guess ... */
+#define SMB2_HDR_BODY    0x40
+
+/* SMB2 opcodes */
+#define SMB2_OP_NEGPROT   0x00
+#define SMB2_OP_SESSSETUP 0x01
+#define SMB2_OP_TCON      0x03
+#define SMB2_OP_TDIS      0x04
+#define SMB2_OP_CREATE    0x05
+#define SMB2_OP_CLOSE     0x06
+#define SMB2_OP_READ      0x08
+#define SMB2_OP_WRITE     0x09
+#define SMB2_OP_FIND      0x0e
+
+#define SMB2_MAGIC 0x424D53FE /* 0xFE 'S' 'M' 'B' */
+