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-rw-r--r--source3/libsmb/smb2cli.h32
-rw-r--r--source3/libsmb/smb2cli_query_info.c254
2 files changed, 286 insertions, 0 deletions
diff --git a/source3/libsmb/smb2cli.h b/source3/libsmb/smb2cli.h
index 132fffdc0b..8ce823b785 100644
--- a/source3/libsmb/smb2cli.h
+++ b/source3/libsmb/smb2cli.h
@@ -188,4 +188,36 @@ NTSTATUS smb2cli_ioctl(struct cli_state *cli,
DATA_BLOB *out_input_buffer,
DATA_BLOB *out_output_buffer);
+struct tevent_req *smb2cli_query_info_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXcli_conn *conn,
+ uint32_t timeout_msec,
+ struct smbXcli_session *session,
+ uint32_t tcon_id,
+ uint8_t in_info_type,
+ uint8_t in_file_info_class,
+ uint32_t in_max_output_length,
+ const DATA_BLOB *in_input_buffer,
+ uint32_t in_additional_info,
+ uint32_t in_flags,
+ uint64_t in_fid_persistent,
+ uint64_t in_fid_volatile);
+NTSTATUS smb2cli_query_info_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out_output_buffer);
+NTSTATUS smb2cli_query_info(struct smbXcli_conn *conn,
+ uint32_t timeout_msec,
+ struct smbXcli_session *session,
+ uint32_t tcon_id,
+ uint8_t in_info_type,
+ uint8_t in_file_info_class,
+ uint32_t in_max_output_length,
+ const DATA_BLOB *in_input_buffer,
+ uint32_t in_additional_info,
+ uint32_t in_flags,
+ uint64_t in_fid_persistent,
+ uint64_t in_fid_volatile,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out_output_buffer);
+
#endif /* __SMB2CLI_H__ */
diff --git a/source3/libsmb/smb2cli_query_info.c b/source3/libsmb/smb2cli_query_info.c
new file mode 100644
index 0000000000..366dc4a960
--- /dev/null
+++ b/source3/libsmb/smb2cli_query_info.c
@@ -0,0 +1,254 @@
+/*
+ Unix SMB/CIFS implementation.
+ smb2 lib
+ Copyright (C) Stefan Metzmacher 2012
+
+ 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 "../libcli/smb/smbXcli_base.h"
+#include "smb2cli.h"
+#include "libsmb/proto.h"
+#include "lib/util/tevent_ntstatus.h"
+#include "../librpc/ndr/libndr.h"
+
+struct smb2cli_query_info_state {
+ uint8_t fixed[0x28];
+ uint8_t dyn_pad[1];
+ uint32_t max_output_length;
+ struct iovec *recv_iov;
+ DATA_BLOB out_output_buffer;
+};
+
+static void smb2cli_query_info_done(struct tevent_req *subreq);
+
+struct tevent_req *smb2cli_query_info_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbXcli_conn *conn,
+ uint32_t timeout_msec,
+ struct smbXcli_session *session,
+ uint32_t tcon_id,
+ uint8_t in_info_type,
+ uint8_t in_file_info_class,
+ uint32_t in_max_output_length,
+ const DATA_BLOB *in_input_buffer,
+ uint32_t in_additional_info,
+ uint32_t in_flags,
+ uint64_t in_fid_persistent,
+ uint64_t in_fid_volatile)
+{
+ struct tevent_req *req, *subreq;
+ struct smb2cli_query_info_state *state;
+ uint8_t *fixed;
+ uint8_t *dyn;
+ size_t dyn_len;
+ uint16_t input_buffer_offset = 0;
+ uint32_t input_buffer_length = 0;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct smb2cli_query_info_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->max_output_length = in_max_output_length;
+
+ if (in_input_buffer) {
+ input_buffer_offset = SMB2_HDR_BODY+0x28;
+ input_buffer_length = in_input_buffer->length;
+ }
+
+ fixed = state->fixed;
+
+ SSVAL(fixed, 0x00, 0x29);
+ SCVAL(fixed, 0x02, in_info_type);
+ SCVAL(fixed, 0x03, in_file_info_class); /* reserved */
+ SIVAL(fixed, 0x04, in_max_output_length);
+ SSVAL(fixed, 0x08, input_buffer_offset);
+ SSVAL(fixed, 0x0A, 0); /* reserved */
+ SIVAL(fixed, 0x0C, input_buffer_length);
+ SIVAL(fixed, 0x10, in_additional_info);
+ SIVAL(fixed, 0x14, in_flags);
+ SBVAL(fixed, 0x18, in_fid_persistent);
+ SBVAL(fixed, 0x20, in_fid_volatile);
+
+ if (input_buffer_length > 0) {
+ dyn = in_input_buffer->data;
+ dyn_len = in_input_buffer->length;
+ } else {
+ dyn = state->dyn_pad;
+ dyn_len = sizeof(state->dyn_pad);
+ }
+
+ subreq = smb2cli_req_send(state, ev, conn, SMB2_OP_GETINFO,
+ 0, 0, /* flags */
+ timeout_msec,
+ 0xFEFF, /* pid */
+ tcon_id,
+ session,
+ state->fixed, sizeof(state->fixed),
+ dyn, dyn_len);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, smb2cli_query_info_done, req);
+ return req;
+}
+
+static void smb2cli_query_info_done(struct tevent_req *subreq)
+{
+ struct tevent_req *req =
+ tevent_req_callback_data(subreq,
+ struct tevent_req);
+ struct smb2cli_query_info_state *state =
+ tevent_req_data(req,
+ struct smb2cli_query_info_state);
+ NTSTATUS status;
+ struct iovec *iov;
+ uint8_t *fixed;
+ uint8_t *dyn;
+ size_t dyn_len;
+ uint32_t dyn_ofs = SMB2_HDR_BODY + 0x08;
+ uint32_t output_buffer_offset;
+ uint32_t output_buffer_length;
+ static const struct smb2cli_req_expected_response expected[] = {
+ {
+ .status = NT_STATUS_OK,
+ .body_size = 0x09
+ },
+ {
+ .status = STATUS_BUFFER_OVERFLOW,
+ .body_size = 0x09
+ }
+ };
+
+ status = smb2cli_req_recv(subreq, state, &iov,
+ expected, ARRAY_SIZE(expected));
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ state->recv_iov = iov;
+ fixed = (uint8_t *)iov[1].iov_base;
+ dyn = (uint8_t *)iov[2].iov_base;
+ dyn_len = iov[2].iov_len;
+
+ output_buffer_offset = SVAL(fixed, 0x02);
+ output_buffer_length = IVAL(fixed, 0x04);
+
+ if ((output_buffer_offset > 0) && (output_buffer_length > 0)) {
+ if (output_buffer_offset != dyn_ofs) {
+ tevent_req_nterror(
+ req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (output_buffer_length < dyn_len) {
+ tevent_req_nterror(
+ req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ if (output_buffer_length > state->max_output_length) {
+ tevent_req_nterror(
+ req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+
+ state->out_output_buffer.data = dyn;
+ state->out_output_buffer.length = output_buffer_length;
+ }
+
+ tevent_req_done(req);
+}
+
+NTSTATUS smb2cli_query_info_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out_output_buffer)
+{
+ struct smb2cli_query_info_state *state =
+ tevent_req_data(req,
+ struct smb2cli_query_info_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+
+ talloc_steal(mem_ctx, state->recv_iov);
+ if (out_output_buffer) {
+ *out_output_buffer = state->out_output_buffer;
+ }
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
+}
+
+NTSTATUS smb2cli_query_info(struct smbXcli_conn *conn,
+ uint32_t timeout_msec,
+ struct smbXcli_session *session,
+ uint32_t tcon_id,
+ uint8_t in_info_type,
+ uint8_t in_file_info_class,
+ uint32_t in_max_output_length,
+ const DATA_BLOB *in_input_buffer,
+ uint32_t in_additional_info,
+ uint32_t in_flags,
+ uint64_t in_fid_persistent,
+ uint64_t in_fid_volatile,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out_output_buffer)
+{
+ 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_MIX;
+ goto fail;
+ }
+ ev = tevent_context_init(frame);
+ if (ev == NULL) {
+ goto fail;
+ }
+ req = smb2cli_query_info_send(frame, ev,
+ conn, timeout_msec,
+ session, tcon_id,
+ in_info_type,
+ in_file_info_class,
+ in_max_output_length,
+ in_input_buffer,
+ in_additional_info,
+ in_flags,
+ in_fid_persistent,
+ in_fid_volatile);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = smb2cli_query_info_recv(req, mem_ctx,
+ out_output_buffer);
+ fail:
+ TALLOC_FREE(frame);
+ return status;
+}
generated by cgit (git 2.34.1) at 2024-11-05 17:27:30 +0000