#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 "../librpc/ndr/libndr.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,
{
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;
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_max_output_length = IVAL(inbody, 0x2C);
in_flags = IVAL(inbody, 0x30);
- min_buffer_offset = SMB2_HDR_BODY + req->in.vector[i+1].iov_len;
- max_buffer_offset = min_buffer_offset + req->in.vector[i+2].iov_len;
+ 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;
/*
allowed_length_in = max_buffer_offset - in_input_offset;
tmp_ofs = in_input_offset - min_buffer_offset;
- in_input_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
+ 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;
}
tmp_ofs = in_output_offset - min_buffer_offset;
- in_output_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
+ in_output_buffer.data = SMBD_SMB2_IN_DYN_PTR(req);
in_output_buffer.data += tmp_ofs;
in_output_buffer.length = in_output_length;
}
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;
DATA_BLOB outbody;
DATA_BLOB outdyn;
uint32_t in_ctl_code;
TALLOC_FREE(subreq);
if (disconnect) {
error = status;
- smbd_server_connection_terminate(req->sconn,
+ smbd_server_connection_terminate(req->xconn,
nt_errstr(error));
return;
}
- if (NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) {
- /* also ok */
- } else if (!NT_STATUS_IS_OK(status)) {
+ 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);
-
- 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;
- bool disconnect;
-};
-
-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 tevent_req *req;
struct smbd_smb2_ioctl_state *state;
struct smb_request *smbreq;
- struct tevent_req *subreq;
req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_ioctl_state);
}
state->smbreq = smbreq;
- 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()) {
+ 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);
- }
-
- 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 FSCTL_VALIDATE_NEGOTIATE_INFO:
- {
- struct smbXsrv_connection *conn = smbreq->sconn->conn;
- uint32_t in_capabilities;
- DATA_BLOB in_guid_blob;
- struct GUID in_guid;
- uint16_t in_security_mode;
- uint16_t in_num_dialects;
- uint16_t i;
- DATA_BLOB out_guid_blob;
- NTSTATUS status;
-
- if (in_input.length < 0x18) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, ev);
- }
-
- in_capabilities = IVAL(in_input.data, 0x00);
- in_guid_blob = data_blob_const(in_input.data + 0x04, 16);
- in_security_mode = SVAL(in_input.data, 0x14);
- in_num_dialects = SVAL(in_input.data, 0x16);
-
- if (in_input.length != (0x18 + in_num_dialects*2)) {
- tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
- return tevent_req_post(req, ev);
- }
-
- if (in_max_output < 0x18) {
- tevent_req_nterror(req, NT_STATUS_BUFFER_TOO_SMALL);
- return tevent_req_post(req, ev);
- }
-
- status = GUID_from_ndr_blob(&in_guid_blob, &in_guid);
- if (tevent_req_nterror(req, status)) {
- return tevent_req_post(req, ev);
- }
-
- if (in_num_dialects != conn->smb2.client.num_dialects) {
- state->disconnect = true;
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
- return tevent_req_post(req, ev);
- }
-
- for (i=0; i < in_num_dialects; i++) {
- uint16_t v = SVAL(in_input.data, 0x18 + i*2);
-
- if (conn->smb2.client.dialects[i] != v) {
- state->disconnect = true;
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
- return tevent_req_post(req, ev);
- }
- }
-
- if (!GUID_compare(&in_guid, &conn->smb2.client.guid)) {
- state->disconnect = true;
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
- return tevent_req_post(req, ev);
- }
-
- if (in_security_mode != conn->smb2.client.security_mode) {
- state->disconnect = true;
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
- return tevent_req_post(req, ev);
- }
-
- if (in_capabilities != conn->smb2.client.capabilities) {
- state->disconnect = true;
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
- return tevent_req_post(req, ev);
- }
-
- status = GUID_to_ndr_blob(&conn->smb2.server.guid, state,
- &out_guid_blob);
- if (tevent_req_nterror(req, status)) {
- return tevent_req_post(req, ev);
- }
-
- state->out_output = data_blob_talloc(state, NULL, 0x18);
- if (tevent_req_nomem(state->out_output.data, req)) {
- return tevent_req_post(req, ev);
- }
-
- SIVAL(state->out_output.data, 0x00, conn->smb2.server.capabilities);
- memcpy(state->out_output.data+0x04, out_guid_blob.data, 16);
- SIVAL(state->out_output.data, 0x14, conn->smb2.server.security_mode);
- SIVAL(state->out_output.data, 0x16, conn->smb2.server.dialect);
-
- tevent_req_done(req);
- return tevent_req_post(req, ev);
- }
-
- default: {
- uint8_t *out_data = NULL;
- uint32_t out_data_len = 0;
- NTSTATUS status;
-
- if (fsp == NULL) {
- tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
- return tevent_req_post(req, ev);
- }
-
- status = SMB_VFS_FSCTL(fsp,
- state,
- in_ctl_code,
- smbreq->flags2,
- in_input.data,
- in_input.length,
- &out_data,
- in_max_output,
- &out_data_len);
- state->out_output = data_blob_const(out_data, out_data_len);
- if (NT_STATUS_IS_OK(status)) {
- tevent_req_done(req);
- return tevent_req_post(req, ev);
- }
-
- if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
- if (IS_IPC(smbreq->conn)) {
- status = NT_STATUS_FS_DRIVER_REQUIRED;
- } else {
- status = NT_STATUS_INVALID_DEVICE_REQUEST;
- }
+ tevent_req_nterror(req, NT_STATUS_INVALID_DEVICE_REQUEST);
}
- tevent_req_nterror(req, status);
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)) {
- NTSTATUS old = status;
- status = nt_status_np_pipe(old);
- 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->ev_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;
- NTSTATUS old;
- ssize_t nread = -1;
- bool is_data_outstanding = false;
-
- status = np_read_recv(subreq, &nread, &is_data_outstanding);
- TALLOC_FREE(subreq);
-
- old = status;
- status = nt_status_np_pipe(old);
-
- DEBUG(10,("smbd_smb2_ioctl_pipe_read_done: np_read_recv nread = %d "
- "is_data_outstanding = %d, status = %s%s%s\n",
- (int)nread,
- (int)is_data_outstanding,
- nt_errstr(old),
- NT_STATUS_EQUAL(old, status)?"":" => ",
- NT_STATUS_EQUAL(old, status)?"":nt_errstr(status)));
-
- 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,
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;
*disconnect = state->disconnect;
- if (tevent_req_is_nterror(req, &status)) {
- if (!NT_STATUS_EQUAL(status, STATUS_BUFFER_OVERFLOW)) {
- tevent_req_received(req);
- return status;
- }
+ 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);
}
- *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