--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ smb2 client routines
+ 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/>.
+*/
+
+#ifndef __SMB2CLI_H__
+#define __SMB2CLI_H__
+
+struct tevent_req *smb2cli_negprot_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct cli_state *cli);
+NTSTATUS smb2cli_negprot_recv(struct tevent_req *req);
+NTSTATUS smb2cli_negprot(struct cli_state *cli);
+
+#endif /* __SMB2CLI_H__ */
--- /dev/null
+/*
+ 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 "client.h"
+#include "async_smb.h"
+#include "smb2cli_base.h"
+#include "smb2cli.h"
+#include "libsmb/proto.h"
+#include "librpc/ndr/libndr.h"
+#include "lib/util/tevent_ntstatus.h"
+
+struct smb2cli_negprot_state {
+ struct cli_state *cli;
+ uint8_t fixed[36];
+ uint8_t dyn[4];
+};
+
+static void smb2cli_negprot_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_negprot_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct cli_state *cli)
+{
+ struct tevent_req *req, *subreq;
+ struct smb2cli_negprot_state *state;
+ uint8_t *buf;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct smb2cli_negprot_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->cli = cli;
+
+ buf = state->fixed;
+ SSVAL(buf, 0, 36);
+ SSVAL(buf, 2, 2); /* DialectCount */
+ if (client_is_signing_mandatory(cli)) {
+ SSVAL(buf, 4, SMB2_NEGOTIATE_SIGNING_REQUIRED);
+ } else {
+ SSVAL(buf, 4, SMB2_NEGOTIATE_SIGNING_ENABLED);
+ }
+ SSVAL(buf, 6, 0); /* Reserved */
+ SSVAL(buf, 8, 0); /* Capabilities */
+ memset(buf+12, 0, 16); /* ClientGuid */
+ SBVAL(buf, 28, 0); /* ClientStartTime */
+
+ buf = state->dyn;
+ SSVAL(buf, 0, 0x202); /* SMB2.002 */
+ SSVAL(buf, 2, 0x210); /* SMB2.1 */
+
+ subreq = smb2cli_req_send(state, ev, cli, SMB2_OP_NEGPROT, 0,
+ state->fixed, sizeof(state->fixed),
+ state->dyn, sizeof(state->dyn));
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, smb2cli_negprot_done, req);
+ return req;
+}
+
+static void smb2cli_negprot_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req =
+ tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct smb2cli_negprot_state *state =
+ tevent_req_data(req,
+ struct smb2cli_negprot_state);
+ struct cli_state *cli = state->cli;
+ size_t security_offset, security_length;
+ DATA_BLOB blob;
+ NTSTATUS status;
+ struct iovec *iov;
+ uint8_t *body;
+
+ status = smb2cli_req_recv(subreq, talloc_tos(), &iov, 65);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(subreq);
+ tevent_req_nterror(req, status);
+ return;
+ }
+ body = (uint8_t *)iov[1].iov_base;
+
+ cli->smb2.security_mode = SVAL(body, 2);
+ cli->smb2.dialect_revision = SVAL(body, 4);
+
+ blob = data_blob_const(body + 8, 16);
+ GUID_from_data_blob(&blob, &cli->smb2.server_guid);
+
+ cli->smb2.server_capabilities = IVAL(body, 24);
+ cli->smb2.max_transact_size = IVAL(body, 28);
+ cli->smb2.max_read_size = IVAL(body, 32);
+ cli->smb2.max_write_size = IVAL(body, 36);
+ cli->smb2.system_time = interpret_long_date((char *)body + 40);
+ cli->smb2.server_start_time = interpret_long_date((char *)body + 48);
+
+ security_offset = SVAL(body, 56);
+ security_length = SVAL(body, 58);
+
+ if ((security_offset != SMB2_HDR_BODY + iov[1].iov_len) ||
+ (security_length > iov[2].iov_len)) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+ cli->secblob = data_blob(iov[1].iov_base, security_length);
+
+ tevent_req_done(req);
+}
+
+NTSTATUS smb2cli_negprot_recv(struct tevent_req *req)
+{
+ return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS smb2cli_negprot(struct cli_state *cli)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct event_context *ev;
+ struct tevent_req *req;
+ NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+ if (cli_has_async_calls(cli)) {
+ /*
+ * Can't use sync call while an async call is in flight
+ */
+ status = NT_STATUS_INVALID_PARAMETER;
+ goto fail;
+ }
+ ev = event_context_init(frame);
+ if (ev == NULL) {
+ goto fail;
+ }
+ req = smb2cli_negprot_send(frame, ev, cli);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = smb2cli_negprot_recv(req);
+ fail:
+ TALLOC_FREE(frame);
+ return status;
+}
+
git.samba.org / rusty / samba.git / commitdiff