#include "smbd/globals.h"
#include "../libcli/smb/smb_common.h"
#include "../lib/util/tevent_ntstatus.h"
-#include "rpc_server/srv_pipe_hnd.h"
#include "include/ntioctl.h"
+#include "smb2_ioctl_private.h"
+#include "librpc/gen_ndr/ioctl.h"
static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
+ struct files_struct *in_fsp,
uint32_t in_ctl_code,
- uint64_t in_file_id_volatile,
DATA_BLOB in_input,
uint32_t in_max_output,
uint32_t in_flags);
static NTSTATUS smbd_smb2_ioctl_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
- DATA_BLOB *out_output);
+ DATA_BLOB *out_output,
+ bool *disconnect);
static void smbd_smb2_request_ioctl_done(struct tevent_req *subreq);
NTSTATUS smbd_smb2_request_process_ioctl(struct smbd_smb2_request *req)
{
NTSTATUS status;
const uint8_t *inbody;
- int i = req->current_idx;
+ uint32_t min_buffer_offset;
+ uint32_t max_buffer_offset;
+ uint32_t min_output_offset;
+ uint32_t allowed_length_in;
+ uint32_t allowed_length_out;
uint32_t in_ctl_code;
uint64_t in_file_id_persistent;
uint64_t in_file_id_volatile;
+ struct files_struct *in_fsp = NULL;
uint32_t in_input_offset;
uint32_t in_input_length;
- DATA_BLOB in_input_buffer;
+ DATA_BLOB in_input_buffer = data_blob_null;
+ uint32_t in_max_input_length;
+ uint32_t in_output_offset;
+ uint32_t in_output_length;
+ DATA_BLOB in_output_buffer = data_blob_null;
uint32_t in_max_output_length;
uint32_t in_flags;
+ uint32_t data_length_in;
+ uint32_t data_length_out;
+ uint32_t data_length_tmp;
+ uint32_t data_length_max;
struct tevent_req *subreq;
status = smbd_smb2_request_verify_sizes(req, 0x39);
if (!NT_STATUS_IS_OK(status)) {
return smbd_smb2_request_error(req, status);
}
- inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
+ inbody = SMBD_SMB2_IN_BODY_PTR(req);
in_ctl_code = IVAL(inbody, 0x04);
in_file_id_persistent = BVAL(inbody, 0x08);
in_file_id_volatile = BVAL(inbody, 0x10);
in_input_offset = IVAL(inbody, 0x18);
in_input_length = IVAL(inbody, 0x1C);
+ in_max_input_length = IVAL(inbody, 0x20);
+ in_output_offset = IVAL(inbody, 0x24);
+ in_output_length = IVAL(inbody, 0x28);
in_max_output_length = IVAL(inbody, 0x2C);
in_flags = IVAL(inbody, 0x30);
+ min_buffer_offset = SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(req);
+ max_buffer_offset = min_buffer_offset + SMBD_SMB2_IN_DYN_LEN(req);
+ min_output_offset = min_buffer_offset;
+
/*
* InputOffset (4 bytes): The offset, in bytes, from the beginning of
* the SMB2 header to the input data buffer. If no input data is
* <49> If no input data is required for the FSCTL/IOCTL command being
* issued, Windows-based clients set this field to any value.
*/
- if ((in_input_length > 0)
- && (in_input_offset != (SMB2_HDR_BODY + req->in.vector[i+1].iov_len))) {
+ allowed_length_in = 0;
+ if ((in_input_offset > 0) && (in_input_length > 0)) {
+ uint32_t tmp_ofs;
+
+ if (in_input_offset < min_buffer_offset) {
+ return smbd_smb2_request_error(req,
+ NT_STATUS_INVALID_PARAMETER);
+ }
+ if (in_input_offset > max_buffer_offset) {
+ return smbd_smb2_request_error(req,
+ NT_STATUS_INVALID_PARAMETER);
+ }
+ allowed_length_in = max_buffer_offset - in_input_offset;
+
+ tmp_ofs = in_input_offset - min_buffer_offset;
+ in_input_buffer.data = SMBD_SMB2_IN_DYN_PTR(req);
+ in_input_buffer.data += tmp_ofs;
+ in_input_buffer.length = in_input_length;
+ min_output_offset += tmp_ofs;
+ min_output_offset += in_input_length;
+ }
+
+ if (in_input_length > allowed_length_in) {
+ return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ }
+
+ allowed_length_out = 0;
+ if (in_output_offset > 0) {
+ if (in_output_offset < min_buffer_offset) {
+ return smbd_smb2_request_error(req,
+ NT_STATUS_INVALID_PARAMETER);
+ }
+ if (in_output_offset > max_buffer_offset) {
+ return smbd_smb2_request_error(req,
+ NT_STATUS_INVALID_PARAMETER);
+ }
+ allowed_length_out = max_buffer_offset - in_output_offset;
+ }
+
+ if (in_output_length > allowed_length_out) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
- if (in_input_length > req->in.vector[i+2].iov_len) {
+ if (in_output_length > 0) {
+ uint32_t tmp_ofs;
+
+ if (in_output_offset < min_output_offset) {
+ return smbd_smb2_request_error(req,
+ NT_STATUS_INVALID_PARAMETER);
+ }
+
+ tmp_ofs = in_output_offset - min_buffer_offset;
+ in_output_buffer.data = SMBD_SMB2_IN_DYN_PTR(req);
+ in_output_buffer.data += tmp_ofs;
+ in_output_buffer.length = in_output_length;
+ }
+
+ /*
+ * verify the credits and avoid overflows
+ * in_input_buffer.length and in_output_buffer.length
+ * are already verified.
+ */
+ data_length_in = in_input_buffer.length + in_output_buffer.length;
+
+ data_length_out = in_max_input_length;
+ data_length_tmp = UINT32_MAX - data_length_out;
+ if (data_length_tmp < in_max_output_length) {
return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
}
+ data_length_out += in_max_output_length;
- in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
- in_input_buffer.length = in_input_length;
+ data_length_max = MAX(data_length_in, data_length_out);
- if (req->compat_chain_fsp) {
- /* skip check */
- } else if (in_file_id_persistent == UINT64_MAX &&
- in_file_id_volatile == UINT64_MAX) {
- /* without a handle */
- } else if (in_file_id_persistent != in_file_id_volatile) {
- return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
+ status = smbd_smb2_request_verify_creditcharge(req, data_length_max);
+ if (!NT_STATUS_IS_OK(status)) {
+ return smbd_smb2_request_error(req, status);
}
- subreq = smbd_smb2_ioctl_send(req,
- req->sconn->smb2.event_ctx,
- req,
+ /*
+ * If the Flags field of the request is not SMB2_0_IOCTL_IS_FSCTL the
+ * server MUST fail the request with STATUS_NOT_SUPPORTED.
+ */
+ if (in_flags != SMB2_IOCTL_FLAG_IS_FSCTL) {
+ return smbd_smb2_request_error(req, NT_STATUS_NOT_SUPPORTED);
+ }
+
+ switch (in_ctl_code) {
+ case FSCTL_DFS_GET_REFERRALS:
+ case FSCTL_DFS_GET_REFERRALS_EX:
+ case FSCTL_PIPE_WAIT:
+ case FSCTL_VALIDATE_NEGOTIATE_INFO_224:
+ case FSCTL_VALIDATE_NEGOTIATE_INFO:
+ case FSCTL_QUERY_NETWORK_INTERFACE_INFO:
+ /*
+ * Some SMB2 specific CtlCodes like FSCTL_DFS_GET_REFERRALS or
+ * FSCTL_PIPE_WAIT does not take a file handle.
+ *
+ * If FileId in the SMB2 Header of the request is not
+ * 0xFFFFFFFFFFFFFFFF, then the server MUST fail the request
+ * with STATUS_INVALID_PARAMETER.
+ */
+ if (in_file_id_persistent != UINT64_MAX ||
+ in_file_id_volatile != UINT64_MAX) {
+ return smbd_smb2_request_error(req,
+ NT_STATUS_INVALID_PARAMETER);
+ }
+ break;
+ default:
+ in_fsp = file_fsp_smb2(req, in_file_id_persistent,
+ in_file_id_volatile);
+ if (in_fsp == NULL) {
+ return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
+ }
+ break;
+ }
+
+ subreq = smbd_smb2_ioctl_send(req, req->sconn->ev_ctx,
+ req, in_fsp,
in_ctl_code,
- in_file_id_volatile,
in_input_buffer,
in_max_output_length,
in_flags);
}
tevent_req_set_callback(subreq, smbd_smb2_request_ioctl_done, req);
- return smbd_smb2_request_pending_queue(req, subreq);
+ return smbd_smb2_request_pending_queue(req, subreq, 1000);
+}
+
+/*
+ * 3.3.4.4 Sending an Error Response
+ * An error code other than one of the following indicates a failure:
+ */
+static bool smbd_smb2_ioctl_is_failure(uint32_t ctl_code, NTSTATUS status,
+ size_t data_size)
+{
+ if (NT_STATUS_IS_OK(status)) {
+ return false;
+ }
+
+ /*
+ * STATUS_BUFFER_OVERFLOW in a FSCTL_PIPE_TRANSCEIVE, FSCTL_PIPE_PEEK or
+ * FSCTL_DFS_GET_REFERRALS Response specified in section 2.2.32.<153>
+ */
+ if (NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)
+ && ((ctl_code == FSCTL_PIPE_TRANSCEIVE)
+ || (ctl_code == FSCTL_PIPE_PEEK)
+ || (ctl_code == FSCTL_DFS_GET_REFERRALS))) {
+ return false;
+ }
+
+ /*
+ * Any status other than STATUS_SUCCESS in a FSCTL_SRV_COPYCHUNK or
+ * FSCTL_SRV_COPYCHUNK_WRITE Response, when returning an
+ * SRV_COPYCHUNK_RESPONSE as described in section 2.2.32.1.
+ */
+ if (((ctl_code == FSCTL_SRV_COPYCHUNK)
+ || (ctl_code == FSCTL_SRV_COPYCHUNK_WRITE))
+ && (data_size == sizeof(struct srv_copychunk_rsp))) {
+ return false;
+ }
+
+ return true;
}
static void smbd_smb2_request_ioctl_done(struct tevent_req *subreq)
struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
struct smbd_smb2_request);
const uint8_t *inbody;
- int i = req->current_idx;
- uint8_t *outhdr;
DATA_BLOB outbody;
DATA_BLOB outdyn;
uint32_t in_ctl_code;
DATA_BLOB out_output_buffer = data_blob_null;
NTSTATUS status;
NTSTATUS error; /* transport error */
+ bool disconnect = false;
- status = smbd_smb2_ioctl_recv(subreq, req, &out_output_buffer);
+ status = smbd_smb2_ioctl_recv(subreq, req,
+ &out_output_buffer,
+ &disconnect);
DEBUG(10,("smbd_smb2_request_ioctl_done: smbd_smb2_ioctl_recv returned "
"%u status %s\n",
nt_errstr(status) ));
TALLOC_FREE(subreq);
- if (NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) {
- /* also ok */
- } else if (!NT_STATUS_IS_OK(status)) {
+ if (disconnect) {
+ error = status;
+ smbd_server_connection_terminate(req->xconn,
+ nt_errstr(error));
+ return;
+ }
+
+ inbody = SMBD_SMB2_IN_BODY_PTR(req);
+
+ in_ctl_code = IVAL(inbody, 0x04);
+ in_file_id_persistent = BVAL(inbody, 0x08);
+ in_file_id_volatile = BVAL(inbody, 0x10);
+
+ if (smbd_smb2_ioctl_is_failure(in_ctl_code, status,
+ out_output_buffer.length)) {
error = smbd_smb2_request_error(req, status);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
out_input_offset = SMB2_HDR_BODY + 0x30;
out_output_offset = SMB2_HDR_BODY + 0x30;
- inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
-
- in_ctl_code = IVAL(inbody, 0x04);
- in_file_id_persistent = BVAL(inbody, 0x08);
- in_file_id_volatile = BVAL(inbody, 0x10);
-
- outhdr = (uint8_t *)req->out.vector[i].iov_base;
-
- outbody = data_blob_talloc(req->out.vector, NULL, 0x30);
+ outbody = smbd_smb2_generate_outbody(req, 0x30);
if (outbody.data == NULL) {
error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
error = smbd_smb2_request_done_ex(req, status, outbody, &outdyn,
__location__);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
}
-struct smbd_smb2_ioctl_state {
- struct smbd_smb2_request *smb2req;
- struct smb_request *smbreq;
- files_struct *fsp;
- DATA_BLOB in_input;
- uint32_t in_max_output;
- DATA_BLOB out_output;
-};
-
-static void smbd_smb2_ioctl_pipe_write_done(struct tevent_req *subreq);
-static void smbd_smb2_ioctl_pipe_read_done(struct tevent_req *subreq);
-
static struct tevent_req *smbd_smb2_ioctl_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct smbd_smb2_request *smb2req,
+ struct files_struct *fsp,
uint32_t in_ctl_code,
- uint64_t in_file_id_volatile,
DATA_BLOB in_input,
uint32_t in_max_output,
uint32_t in_flags)
struct tevent_req *req;
struct smbd_smb2_ioctl_state *state;
struct smb_request *smbreq;
- files_struct *fsp = NULL;
- struct tevent_req *subreq;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_ioctl_state);
}
state->smb2req = smb2req;
state->smbreq = NULL;
- state->fsp = NULL;
+ state->fsp = fsp;
state->in_input = in_input;
state->in_max_output = in_max_output;
state->out_output = data_blob_null;
- DEBUG(10, ("smbd_smb2_ioctl: ctl_code[0x%08x] file_id[0x%016llX]\n",
+ DEBUG(10, ("smbd_smb2_ioctl: ctl_code[0x%08x] %s, %s\n",
(unsigned)in_ctl_code,
- (unsigned long long)in_file_id_volatile));
+ fsp ? fsp_str_dbg(fsp) : "<no handle>",
+ fsp_fnum_dbg(fsp)));
smbreq = smbd_smb2_fake_smb_request(smb2req);
if (tevent_req_nomem(smbreq, req)) {
}
state->smbreq = smbreq;
- if (in_file_id_volatile != UINT64_MAX) {
- fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
- if (fsp == NULL) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
- if (smbreq->conn != fsp->conn) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
- if (smb2req->session->vuid != fsp->vuid) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
- state->fsp = fsp;
- }
-
- switch (in_ctl_code) {
- case 0x00060194: /* FSCTL_DFS_GET_REFERRALS */
- {
- uint16_t in_max_referral_level;
- DATA_BLOB in_file_name_buffer;
- char *in_file_name_string;
- size_t in_file_name_string_size;
- bool ok;
- bool overflow = false;
- NTSTATUS status;
- int dfs_size;
- char *dfs_data = NULL;
-
- if (!IS_IPC(smbreq->conn)) {
- tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
- return tevent_req_post(req, ev);
- }
-
- if (!lp_host_msdfs()) {
- tevent_req_nterror(req, NT_STATUS_FS_DRIVER_REQUIRED);
- return tevent_req_post(req, ev);
- }
-
- if (in_input.length < (2 + 2)) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, ev);
- }
-
- in_max_referral_level = SVAL(in_input.data, 0);
- in_file_name_buffer.data = in_input.data + 2;
- in_file_name_buffer.length = in_input.length - 2;
-
- ok = convert_string_talloc(state, CH_UTF16, CH_UNIX,
- in_file_name_buffer.data,
- in_file_name_buffer.length,
- &in_file_name_string,
- &in_file_name_string_size);
- if (!ok) {
- tevent_req_nterror(req, NT_STATUS_ILLEGAL_CHARACTER);
- return tevent_req_post(req, ev);
- }
-
- dfs_size = setup_dfs_referral(smbreq->conn,
- in_file_name_string,
- in_max_referral_level,
- &dfs_data, &status);
- if (dfs_size < 0) {
- tevent_req_nterror(req, status);
- return tevent_req_post(req, ev);
- }
-
- if (dfs_size > in_max_output) {
- /*
- * TODO: we need a testsuite for this
- */
- overflow = true;
- dfs_size = in_max_output;
- }
-
- state->out_output = data_blob_talloc(state,
- (uint8_t *)dfs_data,
- dfs_size);
- SAFE_FREE(dfs_data);
- if (dfs_size > 0 &&
- tevent_req_nomem(state->out_output.data, req)) {
- return tevent_req_post(req, ev);
- }
-
- if (overflow) {
- tevent_req_nterror(req, STATUS_BUFFER_OVERFLOW);
- } else {
- tevent_req_done(req);
- }
- return tevent_req_post(req, ev);
- }
- case 0x0011C017: /* FSCTL_PIPE_TRANSCEIVE */
-
- if (!IS_IPC(smbreq->conn)) {
- tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
- return tevent_req_post(req, ev);
- }
-
- if (fsp == NULL) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
-
- if (!fsp_is_np(fsp)) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
-
- DEBUG(10,("smbd_smb2_ioctl_send: np_write_send of size %u\n",
- (unsigned int)in_input.length ));
-
- subreq = np_write_send(state, ev,
- fsp->fake_file_handle,
- in_input.data,
- in_input.length);
- if (tevent_req_nomem(subreq, req)) {
- return tevent_req_post(req, ev);
- }
- tevent_req_set_callback(subreq,
- smbd_smb2_ioctl_pipe_write_done,
- req);
- return req;
-
- case 0x00144064: /* FSCTL_SRV_ENUMERATE_SNAPSHOTS */
- {
- /*
- * This is called to retrieve the number of Shadow Copies (a.k.a. snapshots)
- * and return their volume names. If max_data_count is 16, then it is just
- * asking for the number of volumes and length of the combined names.
- *
- * pdata is the data allocated by our caller, but that uses
- * total_data_count (which is 0 in our case) rather than max_data_count.
- * Allocate the correct amount and return the pointer to let
- * it be deallocated when we return.
- */
- struct shadow_copy_data *shadow_data = NULL;
- bool labels = False;
- uint32_t labels_data_count = 0;
- uint32_t data_count;
- uint32_t i;
- char *pdata;
- NTSTATUS status;
-
- if (fsp == NULL) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
-
- if (in_max_output < 16) {
- DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: "
- "in_max_output(%u) < 16 is invalid!\n",
- in_max_output));
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, ev);
- }
-
- if (in_max_output > 16) {
- labels = True;
- }
-
- shadow_data = talloc_zero(talloc_tos(),
- struct shadow_copy_data);
- if (tevent_req_nomem(shadow_data, req)) {
- DEBUG(0,("TALLOC_ZERO() failed!\n"));
- return tevent_req_post(req, ev);
- }
-
- /*
- * Call the VFS routine to actually do the work.
- */
- if (SMB_VFS_GET_SHADOW_COPY_DATA(fsp, shadow_data, labels)
- != 0) {
- if (errno == ENOSYS) {
- DEBUG(5, ("FSCTL_GET_SHADOW_COPY_DATA: "
- "connectpath %s, not supported.\n",
- smbreq->conn->connectpath));
- status = NT_STATUS_NOT_SUPPORTED;
- } else {
- DEBUG(0,("FSCTL_GET_SHADOW_COPY_DATA: "
- "connectpath %s, failed.\n",
- smbreq->conn->connectpath));
- status = map_nt_error_from_unix(errno);
- }
- TALLOC_FREE(shadow_data);
- tevent_req_nterror(req, status);
- return tevent_req_post(req, ev);
- }
-
- labels_data_count =
- (shadow_data->num_volumes*2*sizeof(SHADOW_COPY_LABEL))
- + 2;
-
- if (labels) {
- data_count = 12+labels_data_count+4;
- } else {
- data_count = 16;
- }
-
- if (labels && (in_max_output < data_count)) {
- DEBUG(0, ("FSCTL_GET_SHADOW_COPY_DATA: "
- "in_max_output(%u) too small (%u) bytes "
- "needed!\n", in_max_output, data_count));
- TALLOC_FREE(shadow_data);
- tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
- return tevent_req_post(req, ev);
- }
-
- state->out_output = data_blob_talloc(state, NULL, data_count);
- if (tevent_req_nomem(state->out_output.data, req)) {
- return tevent_req_post(req, ev);
- }
-
- pdata = (char *)state->out_output.data;
-
- /* num_volumes 4 bytes */
- SIVAL(pdata, 0, shadow_data->num_volumes);
-
- if (labels) {
- /* num_labels 4 bytes */
- SIVAL(pdata, 4, shadow_data->num_volumes);
- }
-
- /* needed_data_count 4 bytes */
- SIVAL(pdata, 8, labels_data_count+4);
-
- pdata += 12;
-
- DEBUG(10,("FSCTL_GET_SHADOW_COPY_DATA: %u volumes for "
- "path[%s].\n",
- shadow_data->num_volumes, fsp_str_dbg(fsp)));
- if (labels && shadow_data->labels) {
- for (i=0; i<shadow_data->num_volumes; i++) {
- srvstr_push(pdata, smbreq->flags2,
- pdata, shadow_data->labels[i],
- 2*sizeof(SHADOW_COPY_LABEL),
- STR_UNICODE|STR_TERMINATE);
- pdata += 2*sizeof(SHADOW_COPY_LABEL);
- DEBUGADD(10, ("Label[%u]: '%s'\n", i,
- shadow_data->labels[i]));
- }
- }
-
- TALLOC_FREE(shadow_data);
-
- tevent_req_done(req);
- return tevent_req_post(req, ev);
- }
-
+ switch (in_ctl_code & IOCTL_DEV_TYPE_MASK) {
+ case FSCTL_DFS:
+ return smb2_ioctl_dfs(in_ctl_code, ev, req, state);
+ break;
+ case FSCTL_FILESYSTEM:
+ return smb2_ioctl_filesys(in_ctl_code, ev, req, state);
+ break;
+ case FSCTL_NAMED_PIPE:
+ return smb2_ioctl_named_pipe(in_ctl_code, ev, req, state);
+ break;
+ case FSCTL_NETWORK_FILESYSTEM:
+ return smb2_ioctl_network_fs(in_ctl_code, ev, req, state);
+ break;
default:
if (IS_IPC(smbreq->conn)) {
tevent_req_nterror(req, NT_STATUS_FS_DRIVER_REQUIRED);
- return tevent_req_post(req, ev);
+ } else {
+ tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
}
- tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
+
return tevent_req_post(req, ev);
+ break;
}
tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
return tevent_req_post(req, ev);
}
-static void smbd_smb2_ioctl_pipe_write_done(struct tevent_req *subreq)
-{
- struct tevent_req *req = tevent_req_callback_data(subreq,
- struct tevent_req);
- struct smbd_smb2_ioctl_state *state = tevent_req_data(req,
- struct smbd_smb2_ioctl_state);
- NTSTATUS status;
- ssize_t nwritten = -1;
-
- status = np_write_recv(subreq, &nwritten);
-
- DEBUG(10,("smbd_smb2_ioctl_pipe_write_done: received %ld\n",
- (long int)nwritten ));
-
- TALLOC_FREE(subreq);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return;
- }
-
- if (nwritten != state->in_input.length) {
- tevent_req_nterror(req, NT_STATUS_PIPE_NOT_AVAILABLE);
- return;
- }
-
- state->out_output = data_blob_talloc(state, NULL, state->in_max_output);
- if (state->in_max_output > 0 &&
- tevent_req_nomem(state->out_output.data, req)) {
- return;
- }
-
- DEBUG(10,("smbd_smb2_ioctl_pipe_write_done: issuing np_read_send "
- "of size %u\n",
- (unsigned int)state->out_output.length ));
-
- TALLOC_FREE(subreq);
- subreq = np_read_send(state->smbreq->conn,
- state->smb2req->sconn->smb2.event_ctx,
- state->fsp->fake_file_handle,
- state->out_output.data,
- state->out_output.length);
- if (tevent_req_nomem(subreq, req)) {
- return;
- }
- tevent_req_set_callback(subreq, smbd_smb2_ioctl_pipe_read_done, req);
-}
-
-static void smbd_smb2_ioctl_pipe_read_done(struct tevent_req *subreq)
-{
- struct tevent_req *req = tevent_req_callback_data(subreq,
- struct tevent_req);
- struct smbd_smb2_ioctl_state *state = tevent_req_data(req,
- struct smbd_smb2_ioctl_state);
- NTSTATUS status;
- ssize_t nread = -1;
- bool is_data_outstanding = false;
-
- status = np_read_recv(subreq, &nread, &is_data_outstanding);
-
- DEBUG(10,("smbd_smb2_ioctl_pipe_read_done: np_read_recv nread = %d "
- "is_data_outstanding = %d, status = %s\n",
- (int)nread,
- (int)is_data_outstanding,
- nt_errstr(status) ));
-
- TALLOC_FREE(subreq);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- return;
- }
-
- state->out_output.length = nread;
-
- if (is_data_outstanding) {
- tevent_req_nterror(req, STATUS_BUFFER_OVERFLOW);
- return;
- }
-
- tevent_req_done(req);
-}
-
static NTSTATUS smbd_smb2_ioctl_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
- DATA_BLOB *out_output)
+ DATA_BLOB *out_output,
+ bool *disconnect)
{
NTSTATUS status = NT_STATUS_OK;
struct smbd_smb2_ioctl_state *state = tevent_req_data(req,
struct smbd_smb2_ioctl_state);
+ enum tevent_req_state req_state;
+ uint64_t err;
- if (tevent_req_is_nterror(req, &status)) {
- if (!NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) {
- tevent_req_received(req);
- return status;
- }
- }
+ *disconnect = state->disconnect;
- *out_output = state->out_output;
- talloc_steal(mem_ctx, out_output->data);
+ if ((tevent_req_is_error(req, &req_state, &err) == false)
+ || (req_state == TEVENT_REQ_USER_ERROR)) {
+ /*
+ * Return output buffer to caller if the ioctl was successfully
+ * processed, even if a user error occurred. Some ioctls return
+ * data on failure.
+ */
+ *out_output = state->out_output;
+ talloc_steal(mem_ctx, out_output->data);
+ }
+ tevent_req_is_nterror(req, &status);
tevent_req_received(req);
return status;
}
git.samba.org / amitay / samba.git / blobdiff