Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

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

1 files changed, 461 insertions, 0 deletions

diff --git a/libcli/smb/smb2cli_tcon.c b/libcli/smb/smb2cli_tcon.c
new file mode 100644
index 0000000..d5e4fc3
--- /dev/null
+++ b/libcli/smb/smb2cli_tcon.c
@@ -0,0 +1,461 @@
+/*
+   Unix SMB/CIFS implementation.
+   smb2 lib
+   Copyright (C) Volker Lendecke 2011
+
+   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 "system/network.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "../libcli/smb/smb_common.h"
+#include "../libcli/smb/smbXcli_base.h"
+
+struct smb2cli_raw_tcon_state {
+	struct smbXcli_session *session;
+	struct smbXcli_tcon *tcon;
+	uint8_t fixed[8];
+	uint8_t dyn_pad[1];
+};
+
+static void smb2cli_raw_tcon_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_raw_tcon_send(TALLOC_CTX *mem_ctx,
+					 struct tevent_context *ev,
+					 struct smbXcli_conn *conn,
+					 uint32_t additional_flags,
+					 uint32_t clear_flags,
+					 uint32_t timeout_msec,
+					 struct smbXcli_session *session,
+					 struct smbXcli_tcon *tcon,
+					 uint16_t tcon_flags,
+					 const char *unc)
+{
+	struct tevent_req *req = NULL;
+	struct smb2cli_raw_tcon_state *state = NULL;
+	struct tevent_req *subreq = NULL;
+	uint8_t *fixed = NULL;
+	uint8_t *dyn = NULL;
+	size_t dyn_len;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct smb2cli_raw_tcon_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->session = session;
+	state->tcon = tcon;
+
+	if (!convert_string_talloc(state, CH_UNIX, CH_UTF16,
+				   unc, strlen(unc),
+				   &dyn, &dyn_len)) {
+		tevent_req_oom(req);
+		return tevent_req_post(req, ev);
+	}
+
+	if (strlen(unc) == 0) {
+		TALLOC_FREE(dyn);
+		dyn_len = 0;
+	}
+
+	fixed = state->fixed;
+	SSVAL(fixed, 0, 9);
+	if (smbXcli_conn_protocol(conn) >= PROTOCOL_SMB3_11) {
+		SSVAL(fixed, 2, tcon_flags);
+	} else {
+		SSVAL(fixed, 2, 0); /* Reserved */
+	}
+	SSVAL(fixed, 4, SMB2_HDR_BODY + 8);
+	SSVAL(fixed, 6, dyn_len);
+
+	if (dyn_len == 0) {
+		dyn = state->dyn_pad;
+		dyn_len = sizeof(state->dyn_pad);
+	}
+
+	subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_TCON,
+				  additional_flags, clear_flags,
+				  timeout_msec,
+				  NULL, /* tcon */
+				  session,
+				  state->fixed, sizeof(state->fixed),
+				  dyn, dyn_len,
+				  0); /* max_dyn_len */
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, smb2cli_raw_tcon_done, req);
+
+	return req;
+}
+
+static void smb2cli_raw_tcon_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct smb2cli_raw_tcon_state *state = tevent_req_data(
+		req, struct smb2cli_raw_tcon_state);
+	NTSTATUS status;
+	struct iovec *iov;
+	uint8_t *body;
+	uint32_t tcon_id;
+	uint8_t share_type;
+	uint32_t share_flags;
+	uint32_t share_capabilities;
+	uint32_t maximal_access;
+	static const struct smb2cli_req_expected_response expected[] = {
+	{
+		.status = NT_STATUS_OK,
+		.body_size = 0x10
+	}
+	};
+
+	status = smb2cli_req_recv(subreq, state, &iov,
+				  expected, ARRAY_SIZE(expected));
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		tevent_req_nterror(req, status);
+		return;
+	}
+
+	tcon_id = IVAL(iov[0].iov_base, SMB2_HDR_TID);
+
+	body = (uint8_t *)iov[1].iov_base;
+	share_type		= CVAL(body, 0x02);
+	share_flags		= IVAL(body, 0x04);
+	share_capabilities	= IVAL(body, 0x08);
+	maximal_access		= IVAL(body, 0x0C);
+
+	smb2cli_tcon_set_values(state->tcon,
+				state->session,
+				tcon_id,
+				share_type,
+				share_flags,
+				share_capabilities,
+				maximal_access);
+
+	tevent_req_done(req);
+}
+
+NTSTATUS smb2cli_raw_tcon_recv(struct tevent_req *req)
+{
+	return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS smb2cli_raw_tcon(struct smbXcli_conn *conn,
+			  uint32_t additional_flags,
+			  uint32_t clear_flags,
+			  uint32_t timeout_msec,
+			  struct smbXcli_session *session,
+			  struct smbXcli_tcon *tcon,
+			  uint16_t tcon_flags,
+			  const char *unc)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+	if (smbXcli_conn_has_async_calls(conn)) {
+		/*
+		 * Can't use sync call while an async call is in flight
+		 */
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+	ev = samba_tevent_context_init(frame);
+	if (ev == NULL) {
+		goto fail;
+	}
+	req = smb2cli_raw_tcon_send(frame, ev, conn,
+				    additional_flags, clear_flags,
+				    timeout_msec, session, tcon,
+				    tcon_flags, unc);
+	if (req == NULL) {
+		goto fail;
+	}
+	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+		goto fail;
+	}
+	status = smb2cli_raw_tcon_recv(req);
+ fail:
+	TALLOC_FREE(frame);
+	return status;
+}
+
+struct smb2cli_tcon_state {
+	struct tevent_context *ev;
+	struct smbXcli_conn *conn;
+	uint32_t timeout_msec;
+	struct smbXcli_session *session;
+	struct smbXcli_tcon *tcon;
+	uint8_t fixed[8];
+	uint8_t dyn_pad[1];
+};
+
+static void smb2cli_tcon_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_tcon_send(TALLOC_CTX *mem_ctx,
+				     struct tevent_context *ev,
+				     struct smbXcli_conn *conn,
+				     uint32_t timeout_msec,
+				     struct smbXcli_session *session,
+				     struct smbXcli_tcon *tcon,
+				     uint16_t flags,
+				     const char *unc)
+{
+	struct tevent_req *req, *subreq;
+	struct smb2cli_tcon_state *state;
+	uint32_t additional_flags = 0;
+	uint32_t clear_flags = 0;
+
+	req = tevent_req_create(mem_ctx, &state, struct smb2cli_tcon_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->ev = ev;
+	state->conn = conn;
+	state->timeout_msec = timeout_msec;
+	state->session = session;
+	state->tcon = tcon;
+
+	if (smbXcli_session_is_authenticated(state->session)) {
+		additional_flags |= SMB2_HDR_FLAG_SIGNED;
+	}
+
+	subreq = smb2cli_raw_tcon_send(state,
+				       state->ev,
+				       state->conn,
+				       additional_flags,
+				       clear_flags,
+				       state->timeout_msec,
+				       state->session,
+				       state->tcon,
+				       flags,
+				       unc);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, smb2cli_tcon_done, req);
+
+	return req;
+}
+
+static void smb2cli_tcon_validate(struct tevent_req *subreq);
+
+static void smb2cli_tcon_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct smb2cli_tcon_state *state = tevent_req_data(
+		req, struct smb2cli_tcon_state);
+	NTSTATUS status;
+
+	status = smb2cli_raw_tcon_recv(subreq);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+
+	if (!smbXcli_session_is_authenticated(state->session)) {
+		tevent_req_done(req);
+		return;
+	}
+
+	if (smbXcli_conn_protocol(state->conn) >= PROTOCOL_SMB3_11) {
+		tevent_req_done(req);
+		return;
+	}
+
+	subreq = smb2cli_validate_negotiate_info_send(state, state->ev,
+						      state->conn,
+						      state->timeout_msec,
+						      state->session,
+						      state->tcon);
+	if (tevent_req_nomem(subreq, req)) {
+		return;
+	}
+	tevent_req_set_callback(subreq, smb2cli_tcon_validate, req);
+}
+
+static void smb2cli_tcon_validate(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct smb2cli_tcon_state *state = tevent_req_data(
+		req, struct smb2cli_tcon_state);
+	NTSTATUS status;
+
+	status = smb2cli_validate_negotiate_info_recv(subreq);
+	TALLOC_FREE(subreq);
+	if (!NT_STATUS_IS_OK(status)) {
+		smb2cli_tcon_set_values(state->tcon, NULL,
+					UINT32_MAX, 0, 0, 0, 0);
+		tevent_req_nterror(req, status);
+		return;
+	}
+
+	tevent_req_done(req);
+}
+
+NTSTATUS smb2cli_tcon_recv(struct tevent_req *req)
+{
+	return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS smb2cli_tcon(struct smbXcli_conn *conn,
+		      uint32_t timeout_msec,
+		      struct smbXcli_session *session,
+		      struct smbXcli_tcon *tcon,
+		      uint16_t flags,
+		      const char *unc)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+	if (smbXcli_conn_has_async_calls(conn)) {
+		/*
+		 * Can't use sync call while an async call is in flight
+		 */
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+	ev = samba_tevent_context_init(frame);
+	if (ev == NULL) {
+		goto fail;
+	}
+	req = smb2cli_tcon_send(frame, ev, conn,
+				timeout_msec, session, tcon,
+				flags, unc);
+	if (req == NULL) {
+		goto fail;
+	}
+	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+		goto fail;
+	}
+	status = smb2cli_tcon_recv(req);
+ fail:
+	TALLOC_FREE(frame);
+	return status;
+}
+
+struct smb2cli_tdis_state {
+	struct smbXcli_tcon *tcon;
+	uint8_t fixed[4];
+};
+
+static void smb2cli_tdis_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_tdis_send(TALLOC_CTX *mem_ctx,
+				     struct tevent_context *ev,
+				     struct smbXcli_conn *conn,
+				     uint32_t timeout_msec,
+				     struct smbXcli_session *session,
+				     struct smbXcli_tcon *tcon)
+{
+	struct tevent_req *req, *subreq;
+	struct smb2cli_tdis_state *state;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct smb2cli_tdis_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->tcon = tcon;
+
+	SSVAL(state->fixed, 0, 4);
+
+	subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_TDIS,
+				  0, 0, /* flags */
+				  timeout_msec,
+				  tcon, session,
+				  state->fixed, sizeof(state->fixed),
+				  NULL, 0, /* dyn* */
+				  0); /* max_dyn_len */
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, smb2cli_tdis_done, req);
+	return req;
+}
+
+static void smb2cli_tdis_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req =
+		tevent_req_callback_data(subreq,
+		struct tevent_req);
+	struct smb2cli_tdis_state *state =
+		tevent_req_data(req,
+		struct smb2cli_tdis_state);
+	NTSTATUS status;
+	static const struct smb2cli_req_expected_response expected[] = {
+	{
+		.status = NT_STATUS_OK,
+		.body_size = 0x04
+	}
+	};
+
+	status = smb2cli_req_recv(subreq, NULL, NULL,
+				  expected, ARRAY_SIZE(expected));
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+	smb2cli_tcon_set_values(state->tcon, NULL,
+				UINT32_MAX, 0, 0, 0, 0);
+	tevent_req_done(req);
+}
+
+NTSTATUS smb2cli_tdis_recv(struct tevent_req *req)
+{
+	return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS smb2cli_tdis(struct smbXcli_conn *conn,
+		      uint32_t timeout_msec,
+		      struct smbXcli_session *session,
+		      struct smbXcli_tcon *tcon)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+	if (smbXcli_conn_has_async_calls(conn)) {
+		/*
+		 * Can't use sync call while an async call is in flight
+		 */
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+	ev = samba_tevent_context_init(frame);
+	if (ev == NULL) {
+		goto fail;
+	}
+	req = smb2cli_tdis_send(frame, ev, conn,
+				timeout_msec, session, tcon);
+	if (req == NULL) {
+		goto fail;
+	}
+	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+		goto fail;
+	}
+	status = smb2cli_tdis_recv(req);
+ fail:
+	TALLOC_FREE(frame);
+	return status;
+}