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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:47:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-05 17:47:29 +0000
commit4f5791ebd03eaec1c7da0865a383175b05102712 (patch)
tree8ce7b00f7a76baa386372422adebbe64510812d4 /source3/libsmb/clitrans.c
parentInitial commit. (diff)
downloadsamba-4f5791ebd03eaec1c7da0865a383175b05102712.tar.xz
samba-4f5791ebd03eaec1c7da0865a383175b05102712.zip
Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'source3/libsmb/clitrans.c')
-rw-r--r--source3/libsmb/clitrans.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/source3/libsmb/clitrans.c b/source3/libsmb/clitrans.c
new file mode 100644
index 0000000..e5b4c4a
--- /dev/null
+++ b/source3/libsmb/clitrans.c
@@ -0,0 +1,224 @@
+/*
+ Unix SMB/CIFS implementation.
+ client transaction calls
+ Copyright (C) Andrew Tridgell 1994-1998
+
+ 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 "libsmb/libsmb.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "async_smb.h"
+#include "../libcli/smb/smbXcli_base.h"
+
+struct cli_trans_state {
+ struct cli_state *cli;
+ struct tevent_req *subreq;
+ uint16_t recv_flags2;
+ uint16_t *setup;
+ uint8_t num_setup;
+ uint8_t *param;
+ uint32_t num_param;
+ uint8_t *data;
+ uint32_t num_data;
+};
+
+static void cli_trans_done(struct tevent_req *subreq);
+static bool cli_trans_cancel(struct tevent_req *req);
+
+struct tevent_req *cli_trans_send(
+ TALLOC_CTX *mem_ctx, struct tevent_context *ev,
+ struct cli_state *cli, uint16_t additional_flags2, uint8_t cmd,
+ const char *pipe_name, uint16_t fid, uint16_t function, int flags,
+ uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
+ uint8_t *param, uint32_t num_param, uint32_t max_param,
+ uint8_t *data, uint32_t num_data, uint32_t max_data)
+{
+ struct tevent_req *req;
+ struct cli_trans_state *state;
+ uint8_t additional_flags = 0;
+ uint8_t clear_flags = 0;
+ uint16_t clear_flags2 = 0;
+
+ req = tevent_req_create(mem_ctx, &state, struct cli_trans_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->cli = cli;
+
+ state->subreq = smb1cli_trans_send(state, ev,
+ cli->conn, cmd,
+ additional_flags, clear_flags,
+ additional_flags2, clear_flags2,
+ cli->timeout,
+ cli->smb1.pid,
+ cli->smb1.tcon,
+ cli->smb1.session,
+ pipe_name, fid, function, flags,
+ setup, num_setup, max_setup,
+ param, num_param, max_param,
+ data, num_data, max_data);
+ if (tevent_req_nomem(state->subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(state->subreq, cli_trans_done, req);
+ tevent_req_set_cancel_fn(req, cli_trans_cancel);
+ return req;
+}
+
+static bool cli_trans_cancel(struct tevent_req *req)
+{
+ struct cli_trans_state *state = tevent_req_data(
+ req, struct cli_trans_state);
+ bool ok;
+
+ ok = tevent_req_cancel(state->subreq);
+ return ok;
+}
+
+static void cli_trans_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct cli_trans_state *state = tevent_req_data(
+ req, struct cli_trans_state);
+ NTSTATUS status;
+
+ status = smb1cli_trans_recv(
+ subreq,
+ state,
+ &state->recv_flags2,
+ &state->setup, 0, &state->num_setup,
+ &state->param, 0, &state->num_param,
+ &state->data, 0, &state->num_data);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+ tevent_req_done(req);
+}
+
+NTSTATUS cli_trans_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ uint16_t *recv_flags2,
+ uint16_t **setup, uint8_t min_setup,
+ uint8_t *num_setup,
+ uint8_t **param, uint32_t min_param,
+ uint32_t *num_param,
+ uint8_t **data, uint32_t min_data,
+ uint32_t *num_data)
+{
+ struct cli_trans_state *state = tevent_req_data(
+ req, struct cli_trans_state);
+ NTSTATUS status = NT_STATUS_OK;
+ bool map_dos_errors = true;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ goto map_error;
+ }
+
+ if ((state->num_setup < min_setup) ||
+ (state->num_param < min_param) ||
+ (state->num_data < min_data)) {
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ }
+
+ if (recv_flags2 != NULL) {
+ *recv_flags2 = state->recv_flags2;
+ }
+ if (setup != NULL) {
+ *setup = talloc_move(mem_ctx, &state->setup);
+ *num_setup = state->num_setup;
+ }
+ if (param != NULL) {
+ *param = talloc_move(mem_ctx, &state->param);
+ *num_param = state->num_param;
+ }
+ if (data != NULL) {
+ *data = talloc_move(mem_ctx, &state->data);
+ *num_data = state->num_data;
+ }
+
+map_error:
+ map_dos_errors = state->cli->map_dos_errors;
+ state->cli->raw_status = status;
+
+ if (NT_STATUS_IS_DOS(status) && map_dos_errors) {
+ uint8_t eclass = NT_STATUS_DOS_CLASS(status);
+ uint16_t ecode = NT_STATUS_DOS_CODE(status);
+ /*
+ * TODO: is it really a good idea to do a mapping here?
+ *
+ * The old cli_pull_error() also does it, so I do not change
+ * the behavior yet.
+ */
+ status = dos_to_ntstatus(eclass, ecode);
+ }
+
+ return status;
+}
+
+NTSTATUS cli_trans(TALLOC_CTX *mem_ctx, struct cli_state *cli,
+ uint8_t trans_cmd,
+ const char *pipe_name, uint16_t fid, uint16_t function,
+ int flags,
+ uint16_t *setup, uint8_t num_setup, uint8_t max_setup,
+ uint8_t *param, uint32_t num_param, uint32_t max_param,
+ uint8_t *data, uint32_t num_data, uint32_t max_data,
+ uint16_t *recv_flags2,
+ uint16_t **rsetup, uint8_t min_rsetup, uint8_t *num_rsetup,
+ uint8_t **rparam, uint32_t min_rparam, uint32_t *num_rparam,
+ uint8_t **rdata, uint32_t min_rdata, uint32_t *num_rdata)
+{
+ 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(cli->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 = cli_trans_send(
+ frame, /* mem_ctx */
+ ev, /* ev */
+ cli, /* cli */
+ 0, /* additional_flags2 */
+ trans_cmd, /* cmd */
+ pipe_name, fid, function, flags,
+ setup, num_setup, max_setup,
+ param, num_param, max_param,
+ data, num_data, max_data);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = cli_trans_recv(
+ req, mem_ctx, recv_flags2,
+ rsetup, min_rsetup, num_rsetup,
+ rparam, min_rparam, num_rparam,
+ rdata, min_rdata, num_rdata);
+fail:
+ TALLOC_FREE(frame);
+ return status;
+}