updated SMB2 tcon as per WSPP docs

(This used to be commit 5913e3e549e71affc66c28cacb6563331fb0c790)

7 files changed, 58 insertions, 33 deletions

diff --git a/source4/libcli/raw/interfaces.h b/source4/libcli/raw/interfaces.h
index 4211dadb2d..ddbddf4c59 100644
--- a/source4/libcli/raw/interfaces.h
+++ b/source4/libcli/raw/interfaces.h
@@ -260,20 +260,19 @@ union smb_tcon {
 
 		struct {
 			/* static body buffer 8 (0x08) bytes */
-			/* uint16_t buffer_code; 0x09 = 0x08 + 1 */
-			uint16_t unknown1; /* 0x0000 */
+			uint16_t reserved;
 			/* uint16_t path_ofs */
 			/* uint16_t path_size */
-	
-			/* dynamic body */
+				/* dynamic body */
 			const char *path; /* as non-terminated UTF-16 on the wire */
 		} in;
 		struct {
 			/* static body buffer 16 (0x10) bytes */
 			/* uint16_t buffer_code;  0x10 */
-			uint16_t unknown1; /* 0x02 */
-			uint32_t unknown2; /* 0x00 */
-			uint32_t unknown3; /* 0x00 */
+			uint8_t share_type;
+			uint8_t reserved;
+			uint32_t flags;
+			uint32_t capabilities;
 			uint32_t access_mask;
 	
 			/* extracted from the SMB2 header */
diff --git a/source4/libcli/smb2/connect.c b/source4/libcli/smb2/connect.c
index a2ae828fa5..535df11d9d 100644
--- a/source4/libcli/smb2/connect.c
+++ b/source4/libcli/smb2/connect.c
@@ -73,7 +73,7 @@ static void continue_session(struct composite_context *creq)
 	state->tree = smb2_tree_init(state->session, state, true);
 	if (composite_nomem(state->tree, c)) return;
 
-	state->tcon.in.unknown1 = 0x09;
+	state->tcon.in.reserved = 0;
 	state->tcon.in.path     = talloc_asprintf(state, "\\\\%s\\%s", 
 						  state->host, state->share);
 	if (composite_nomem(state->tcon.in.path, c)) return;
diff --git a/source4/libcli/smb2/smb2.h b/source4/libcli/smb2/smb2.h
index 60cf3e0173..549b477ffd 100644
--- a/source4/libcli/smb2/smb2.h
+++ b/source4/libcli/smb2/smb2.h
@@ -195,6 +195,28 @@ struct smb2_request {
 
 #define SMB2_MAGIC 0x424D53FE /* 0xFE 'S' 'M' 'B' */
 
+/* SMB2 negotiate security_mode */
+#define SMB2_NEGOTIATE_SIGNING_ENABLED   0x01
+#define SMB2_NEGOTIATE_SIGNING_REQUIRED  0x02
+
+/* SMB2 capabilities - only 1 so far. I'm sure more will be added */
+#define SMB2_CAP_DFS                     0x0
+/* so we can spot new caps as added */
+#define SMB2_CAP_ALL                     SMB2_CAP_DFS 
+
+/* SMB2 share flags */
+#define SMB2_SHAREFLAG_MANUAL_CACHING                    0x0000
+#define SMB2_SHAREFLAG_AUTO_CACHING                      0x0010
+#define SMB2_SHAREFLAG_VDO_CACHING                       0x0020
+#define SMB2_SHAREFLAG_NO_CACHING                        0x0030
+#define SMB2_SHAREFLAG_DFS                               0x0001
+#define SMB2_SHAREFLAG_DFS_ROOT                          0x0002
+#define SMB2_SHAREFLAG_RESTRICT_EXCLUSIVE_OPENS          0x0100
+#define SMB2_SHAREFLAG_FORCE_SHARED_DELETE               0x0200
+#define SMB2_SHAREFLAG_ALLOW_NAMESPACE_CACHING           0x0400
+#define SMB2_SHAREFLAG_ACCESS_BASED_DIRECTORY_ENUM       0x0800
+#define SMB2_SHAREFLAG_ALL                               0x0F33
+
 /*
   check that a body has the expected size
 */
diff --git a/source4/libcli/smb2/smb2_calls.h b/source4/libcli/smb2/smb2_calls.h
index 423d9d1579..f2e3019d83 100644
--- a/source4/libcli/smb2/smb2_calls.h
+++ b/source4/libcli/smb2/smb2_calls.h
@@ -35,7 +35,7 @@ struct smb2_negprot {
 	struct {
 		/* static body buffer 64 (0x40) bytes */
 		/* uint16_t buffer_code;  0x41 = 0x40 + 1 */
-		uint16_t security_mode;
+		uint16_t security_mode; /* SMB2_NEGOTIATE_SIGNING_* */
 		uint16_t dialect_revision;
 		uint16_t reserved;
 		struct GUID server_guid;
diff --git a/source4/libcli/smb2/tcon.c b/source4/libcli/smb2/tcon.c
index 5a09970584..db35669d41 100644
--- a/source4/libcli/smb2/tcon.c
+++ b/source4/libcli/smb2/tcon.c
@@ -58,7 +58,7 @@ struct smb2_request *smb2_tree_connect_send(struct smb2_tree *tree,
 
 	SBVAL(req->out.hdr,  SMB2_HDR_SESSION_ID, tree->session->uid);
 
-	SSVAL(req->out.body, 0x02, io->in.unknown1);
+	SSVAL(req->out.body, 0x02, io->in.reserved);
 	status = smb2_push_o16s16_string(&req->out, 0x04, io->in.path);
 	if (!NT_STATUS_IS_OK(status)) {
 		talloc_free(req);
@@ -85,10 +85,18 @@ NTSTATUS smb2_tree_connect_recv(struct smb2_request *req, struct smb2_tree_conne
 
 	io->out.tid      = IVAL(req->in.hdr,  SMB2_HDR_TID);
 
-	io->out.unknown1    = SVAL(req->in.body, 0x02);
-	io->out.unknown2    = IVAL(req->in.body, 0x04);
-	io->out.unknown3    = IVAL(req->in.body, 0x08);
+	io->out.share_type  = CVAL(req->in.body, 0x02);
+	io->out.reserved    = CVAL(req->in.body, 0x03);
+	io->out.flags       = IVAL(req->in.body, 0x04);
+	io->out.capabilities= IVAL(req->in.body, 0x08);
 	io->out.access_mask = IVAL(req->in.body, 0x0C);
+
+	if (io->out.capabilities & ~SMB2_CAP_ALL) {
+		DEBUG(0,("Unknown capabilities mask 0x%x\n", io->out.capabilities));
+	}
+	if (io->out.flags & ~SMB2_SHAREFLAG_ALL) {
+		DEBUG(0,("Unknown tcon shareflag 0x%x\n", io->out.flags));
+	}
 	
 	return smb2_request_destroy(req);
 }
diff --git a/source4/ntvfs/ntvfs.h b/source4/ntvfs/ntvfs.h
index fe5f956426..a708dbff51 100644
--- a/source4/ntvfs/ntvfs.h
+++ b/source4/ntvfs/ntvfs.h
@@ -32,9 +32,11 @@ struct ntvfs_module_context;
 struct ntvfs_request;
 
 /* each backend has to be one one of the following 3 basic types. In
- * earlier versions of Samba backends needed to handle all types, now
- * we implement them separately. */
-enum ntvfs_type {NTVFS_DISK, NTVFS_PRINT, NTVFS_IPC};
+   earlier versions of Samba backends needed to handle all types, now
+   we implement them separately.
+   The values 1..3 match the SMB2 SMB2_SHARE_TYPE_* values
+ */
+enum ntvfs_type {NTVFS_DISK=1, NTVFS_IPC=2, NTVFS_PRINT=3};
 
 /* the ntvfs operations structure - contains function pointers to 
    the backend implementations of each operation */
diff --git a/source4/smb_server/smb2/tcon.c b/source4/smb_server/smb2/tcon.c
index 824a57b4a1..b375ce6b4b 100644
--- a/source4/smb_server/smb2/tcon.c
+++ b/source4/smb_server/smb2/tcon.c
@@ -240,8 +240,6 @@ static NTSTATUS smb2srv_tcon_backend(struct smb2srv_request *req, union smb_tcon
 	struct smbsrv_tcon *tcon;
 	NTSTATUS status;
 	enum ntvfs_type type;
-	uint16_t type_smb2;
-	uint32_t unknown2;
 	const char *service = io->smb2.in.path;
 	struct share_config *scfg;
 	const char *sharetype;
@@ -270,16 +268,10 @@ static NTSTATUS smb2srv_tcon_backend(struct smb2srv_request *req, union smb_tcon
 	sharetype = share_string_option(scfg, SHARE_TYPE, "DISK");
 	if (sharetype && strcmp(sharetype, "IPC") == 0) {
 		type = NTVFS_IPC;
-		type_smb2 = 0x0002;
-		unknown2 = 0x00000030;
 	} else if (sharetype && strcmp(sharetype, "PRINTER") == 0) {
 		type = NTVFS_PRINT;
-		type_smb2 = 0x0003;
-		unknown2 = 0x00000000;
 	} else {
 		type = NTVFS_DISK;
-		type_smb2 = 0x0001;
-		unknown2 = 0x00000800;
 	}
 
 	tcon = smbsrv_smb2_tcon_new(req->session, scfg->name);
@@ -344,10 +336,11 @@ static NTSTATUS smb2srv_tcon_backend(struct smb2srv_request *req, union smb_tcon
 		goto failed;
 	}
 
-	io->smb2.out.unknown1	= type_smb2; /* 1 - DISK, 2 - Print, 3 - IPC */
-	io->smb2.out.unknown2	= unknown2;
-	io->smb2.out.unknown3	= 0x00000000;
-	io->smb2.out.access_mask= SEC_RIGHTS_FILE_ALL;
+	io->smb2.out.share_type	  = (unsigned)type; /* 1 - DISK, 2 - Print, 3 - IPC */
+	io->smb2.out.reserved	  = 0;
+	io->smb2.out.flags	  = 0x00000000;
+	io->smb2.out.capabilities = 0;
+	io->smb2.out.access_mask  = SEC_RIGHTS_FILE_ALL;
 
 	io->smb2.out.tid	= tcon->tid;
 
@@ -367,7 +360,7 @@ static void smb2srv_tcon_send(struct smb2srv_request *req, union smb_tcon *io)
 		smb2srv_send_error(req, req->status);
 		return;
 	}
-	if (io->smb2.out.unknown1 == 0x0002) {
+	if (io->smb2.out.share_type == NTVFS_IPC) {
 		/* if it's an IPC share vista returns 0x0005 */
 		credit = 0x0005;
 	} else {
@@ -379,9 +372,10 @@ static void smb2srv_tcon_send(struct smb2srv_request *req, union smb_tcon *io)
 	SIVAL(req->out.hdr,	SMB2_HDR_TID,	io->smb2.out.tid);
 	SSVAL(req->out.hdr,	SMB2_HDR_CREDIT,credit);
 
-	SSVAL(req->out.body,	0x02,		io->smb2.out.unknown1);
-	SIVAL(req->out.body,	0x04,		io->smb2.out.unknown2);
-	SIVAL(req->out.body,	0x08,		io->smb2.out.unknown3);
+	SCVAL(req->out.body,	0x02,		io->smb2.out.share_type);
+	SCVAL(req->out.body,	0x03,		io->smb2.out.reserved);
+	SIVAL(req->out.body,	0x04,		io->smb2.out.flags);
+	SIVAL(req->out.body,	0x08,		io->smb2.out.capabilities);
 	SIVAL(req->out.body,	0x0C,		io->smb2.out.access_mask);
 
 	smb2srv_send_reply(req);
@@ -395,7 +389,7 @@ void smb2srv_tcon_recv(struct smb2srv_request *req)
 	SMB2SRV_TALLOC_IO_PTR(io, union smb_tcon);
 
 	io->smb2.level		= RAW_TCON_SMB2;
-	io->smb2.in.unknown1	= SVAL(req->in.body, 0x02);
+	io->smb2.in.reserved	= SVAL(req->in.body, 0x02);
 	SMB2SRV_CHECK(smb2_pull_o16s16_string(&req->in, io, req->in.body+0x04, &io->smb2.in.path));
 
 	req->status = smb2srv_tcon_backend(req, io);