5 files changed, 174 insertions, 1 deletions

diff --git a/source4/libcli/smb2/config.mk b/source4/libcli/smb2/config.mk
index 4879dfb5df..63cb6c6140 100644
--- a/source4/libcli/smb2/config.mk
+++ b/source4/libcli/smb2/config.mk
@@ -3,5 +3,6 @@ OBJ_FILES = \
 	transport.o \
 	request.o \
 	negprot.o \
-	session.o
+	session.o \
+	tcon.o
 REQUIRED_SUBSYSTEMS = LIBCLI_RAW LIBPACKET
diff --git a/source4/libcli/smb2/request.c b/source4/libcli/smb2/request.c
index 28e7018ecc..deadd1794f 100644
--- a/source4/libcli/smb2/request.c
+++ b/source4/libcli/smb2/request.c
@@ -204,3 +204,40 @@ NTSTATUS smb2_push_ofs_blob(struct smb2_request *req, uint8_t *ptr, DATA_BLOB bl
 	memcpy(ptr+4, blob.data, blob.length);
 	return NT_STATUS_OK;
 }
+
+/*
+  pull a string in a ofs/length/blob format
+*/
+NTSTATUS smb2_pull_ofs_string(struct smb2_request *req, uint8_t *ptr, 
+			      const char **str)
+{
+	DATA_BLOB blob;
+	NTSTATUS status;
+	ssize_t size;
+	void *vstr;
+	status = smb2_pull_ofs_blob(req, ptr, &blob);
+	NT_STATUS_NOT_OK_RETURN(status);
+	size = convert_string_talloc(req, CH_UTF16, CH_UNIX, 
+				     blob.data, blob.length, &vstr);
+	data_blob_free(&blob);
+	(*str) = vstr;
+	if (size == -1) {
+		return NT_STATUS_ILLEGAL_CHARACTER;
+	}
+	return NT_STATUS_OK;
+}
+
+/*
+  create a UTF16 string in a blob from a char*
+*/
+NTSTATUS smb2_string_blob(TALLOC_CTX *mem_ctx, const char *str, DATA_BLOB *blob)
+{
+	ssize_t size;
+	size = convert_string_talloc(mem_ctx, CH_UNIX, CH_UTF16, 
+				     str, strlen(str), (void **)&blob->data);
+	if (size == -1) {
+		return NT_STATUS_ILLEGAL_CHARACTER;
+	}
+	blob->length = size;
+	return NT_STATUS_OK;	
+}
diff --git a/source4/libcli/smb2/smb2.h b/source4/libcli/smb2/smb2.h
index 8ed51b2351..353f9687d7 100644
--- a/source4/libcli/smb2/smb2.h
+++ b/source4/libcli/smb2/smb2.h
@@ -52,6 +52,14 @@ struct smb2_transport {
 
 
 /*
+  SMB2 tree context
+*/
+struct smb2_tree {
+	struct smb2_session *session;
+	uint64_t tid;
+};
+
+/*
   SMB2 session context
 */
 struct smb2_session {
@@ -60,6 +68,7 @@ struct smb2_session {
 	uint64_t uid;
 };
 
+
 struct smb2_request_buffer {
 	/* the raw SMB2 buffer, including the 4 byte length header */
 	uint8_t *buffer;
diff --git a/source4/libcli/smb2/smb2_calls.h b/source4/libcli/smb2/smb2_calls.h
index 3ee8f90bc9..523f314cbf 100644
--- a/source4/libcli/smb2/smb2_calls.h
+++ b/source4/libcli/smb2/smb2_calls.h
@@ -60,3 +60,17 @@ struct smb2_session_setup {
 		uint64_t uid; /* returned in header */
 	} out;
 };
+
+struct smb2_tree_connect {
+	struct {
+		uint32_t unknown1; /* 0x09 */
+		const char *path;
+	} in;
+	struct {
+		uint32_t unknown1; /* 0x00020010 */
+		uint32_t unknown2; /* 0x00 */
+		uint32_t unknown3; /* 0x00 */
+		uint32_t unknown4; /* 0x1f01ff */ /* capabilities?? */
+		uint64_t tid;
+	} out;
+};
diff --git a/source4/libcli/smb2/tcon.c b/source4/libcli/smb2/tcon.c
new file mode 100644
index 0000000000..7b13750cfe
--- /dev/null
+++ b/source4/libcli/smb2/tcon.c
@@ -0,0 +1,112 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   SMB2 client tree handling
+
+   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.
+*/
+
+#include "includes.h"
+#include "libcli/raw/libcliraw.h"
+#include "libcli/smb2/smb2.h"
+#include "libcli/smb2/smb2_calls.h"
+
+/*
+  initialise a smb2_session structure
+ */
+struct smb2_tree *smb2_tree_init(struct smb2_session *session,
+				 TALLOC_CTX *parent_ctx, BOOL primary)
+{
+	struct smb2_tree *tree;
+
+	tree = talloc_zero(parent_ctx, struct smb2_tree);
+	if (!session) {
+		return NULL;
+	}
+	if (primary) {
+		tree->session = talloc_steal(tree, session);
+	} else {
+		tree->session = talloc_reference(tree, session);
+	}
+	return tree;
+}
+
+/*
+  send a tree connect
+*/
+struct smb2_request *smb2_tree_connect_send(struct smb2_tree *tree, 
+					    struct smb2_tree_connect *io)
+{
+	struct smb2_request *req;
+	NTSTATUS status;
+	DATA_BLOB path;
+
+	status = smb2_string_blob(tree, io->in.path, &path);
+	if (!NT_STATUS_IS_OK(status)) {
+		return NULL;
+	}
+	
+	req = smb2_request_init(tree->session->transport, SMB2_OP_TCON, 
+				0x8 + path.length);
+	if (req == NULL) return NULL;
+
+	SBVAL(req->out.hdr,  SMB2_HDR_UID, tree->session->uid);
+	SIVAL(req->out.body, 0x00, io->in.unknown1);
+	status = smb2_push_ofs_blob(req, req->out.body+0x04, path);
+	if (!NT_STATUS_IS_OK(status)) {
+		talloc_free(req);
+		return NULL;
+	}
+
+	smb2_transport_send(req);
+
+	return req;
+}
+
+
+/*
+  recv a tree connect reply
+*/
+NTSTATUS smb2_tree_connect_recv(struct smb2_request *req, struct smb2_tree_connect *io)
+{
+	if (!smb2_request_receive(req) || 
+	    smb2_request_is_error(req)) {
+		return smb2_request_destroy(req);
+	}
+
+	if (req->in.body_size < 0x10) {
+		return NT_STATUS_BUFFER_TOO_SMALL;
+	}
+
+	io->out.tid      = BVAL(req->in.hdr,  SMB2_HDR_TID);
+
+	io->out.unknown1 = IVAL(req->in.body, 0x00);
+	io->out.unknown2 = IVAL(req->in.body, 0x04);
+	io->out.unknown3 = IVAL(req->in.body, 0x08);
+	io->out.unknown4 = IVAL(req->in.body, 0x0C);
+	
+	return smb2_request_destroy(req);
+}
+
+/*
+  sync session setup request
+*/
+NTSTATUS smb2_tree_connect(struct smb2_tree *tree, struct smb2_tree_connect *io)
+{
+	struct smb2_request *req = smb2_tree_connect_send(tree, io);
+	return smb2_tree_connect_recv(req, io);
+}