#include "smbd/globals.h"
#include "../source4/libcli/smb2/smb2_constants.h"
-static NTSTATUS smbd_smb2_read(struct smbd_smb2_request *req,
- uint32_t in_smbpid,
- uint64_t in_file_id_volatile,
- uint32_t in_length,
- uint64_t in_offset,
- uint32_t in_minimum,
- uint32_t in_remaining,
- DATA_BLOB *out_data_buffer,
- uint32_t *out_remaining);
-
+static struct tevent_req *smbd_smb2_read_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbd_smb2_request *smb2req,
+ uint32_t in_smbpid,
+ uint64_t in_file_id_volatile,
+ uint32_t in_length,
+ uint64_t in_offset,
+ uint32_t in_minimum,
+ uint32_t in_remaining);
+static NTSTATUS smbd_smb2_read_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out_data,
+ uint32_t *out_remaining);
+
+static void smbd_smb2_request_read_done(struct tevent_req *subreq);
NTSTATUS smbd_smb2_request_process_read(struct smbd_smb2_request *req)
{
const uint8_t *inhdr;
const uint8_t *inbody;
int i = req->current_idx;
- uint8_t *outhdr;
- DATA_BLOB outbody;
- DATA_BLOB outdyn;
size_t expected_body_size = 0x31;
size_t body_size;
uint32_t in_smbpid;
uint64_t in_file_id_volatile;
uint32_t in_minimum_count;
uint32_t in_remaining_bytes;
- uint8_t out_data_offset;
- DATA_BLOB out_data_buffer;
- uint32_t out_data_remaining;
- NTSTATUS status;
+ struct tevent_req *subreq;
inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
}
- status = smbd_smb2_read(req,
- in_smbpid,
- in_file_id_volatile,
- in_length,
- in_offset,
- in_minimum_count,
- in_remaining_bytes,
- &out_data_buffer,
- &out_data_remaining);
+ subreq = smbd_smb2_read_send(req,
+ req->conn->smb2.event_ctx,
+ req,
+ in_smbpid,
+ in_file_id_volatile,
+ in_length,
+ in_offset,
+ in_minimum_count,
+ in_remaining_bytes);
+ if (subreq == NULL) {
+ return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
+ }
+ tevent_req_set_callback(subreq, smbd_smb2_request_read_done, req);
+ return NT_STATUS_OK;
+}
+
+static void smbd_smb2_request_read_done(struct tevent_req *subreq)
+{
+ struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
+ struct smbd_smb2_request);
+ int i = req->current_idx;
+ uint8_t *outhdr;
+ DATA_BLOB outbody;
+ DATA_BLOB outdyn;
+ uint8_t out_data_offset;
+ DATA_BLOB out_data_buffer;
+ uint32_t out_data_remaining;
+ NTSTATUS status;
+ NTSTATUS error; /* transport error */
+
+ status = smbd_smb2_read_recv(subreq,
+ req,
+ &out_data_buffer,
+ &out_data_remaining);
+ TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
- return smbd_smb2_request_error(req, status);
+ error = smbd_smb2_request_error(req, status);
+ if (!NT_STATUS_IS_OK(error)) {
+ smbd_server_connection_terminate(req->conn,
+ nt_errstr(error));
+ return;
+ }
}
out_data_offset = SMB2_HDR_BODY + 0x10;
outbody = data_blob_talloc(req->out.vector, NULL, 0x10);
if (outbody.data == NULL) {
- return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
+ error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
+ if (!NT_STATUS_IS_OK(error)) {
+ smbd_server_connection_terminate(req->conn,
+ nt_errstr(error));
+ return;
+ }
}
SSVAL(outbody.data, 0x00, 0x10 + 1); /* struct size */
outdyn = out_data_buffer;
- return smbd_smb2_request_done(req, outbody, &outdyn);
+ error = smbd_smb2_request_done(req, outbody, &outdyn);
+ if (!NT_STATUS_IS_OK(error)) {
+ smbd_server_connection_terminate(req->conn,
+ nt_errstr(error));
+ return;
+ }
}
-static NTSTATUS smbd_smb2_read(struct smbd_smb2_request *req,
- uint32_t in_smbpid,
- uint64_t in_file_id_volatile,
- uint32_t in_length,
- uint64_t in_offset,
- uint32_t in_minimum,
- uint32_t in_remaining,
- DATA_BLOB *out_data_buffer,
- uint32_t *out_remaining)
+struct smbd_smb2_read_state {
+ struct smbd_smb2_request *smb2req;
+ DATA_BLOB out_data;
+ uint32_t out_remaining;
+};
+
+static struct tevent_req *smbd_smb2_read_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct smbd_smb2_request *smb2req,
+ uint32_t in_smbpid,
+ uint64_t in_file_id_volatile,
+ uint32_t in_length,
+ uint64_t in_offset,
+ uint32_t in_minimum,
+ uint32_t in_remaining)
{
+ struct tevent_req *req;
+ struct smbd_smb2_read_state *state;
struct smb_request *smbreq;
- connection_struct *conn = req->tcon->compat_conn;
+ connection_struct *conn = smb2req->tcon->compat_conn;
files_struct *fsp;
ssize_t nread = -1;
struct lock_struct lock;
+ req = tevent_req_create(mem_ctx, &state,
+ struct smbd_smb2_read_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->smb2req = smb2req;
+ state->out_data = data_blob_null;
+ state->out_remaining = 0;
+
DEBUG(10,("smbd_smb2_read: file_id[0x%016llX]\n",
(unsigned long long)in_file_id_volatile));
- smbreq = smbd_smb2_fake_smb_request(req);
- if (smbreq == NULL) {
- return NT_STATUS_NO_MEMORY;
- }
-
- /* If it's an IPC, pass off the pipe handler. */
- if (IS_IPC(conn)) {
- return NT_STATUS_NOT_IMPLEMENTED;
+ smbreq = smbd_smb2_fake_smb_request(smb2req);
+ if (tevent_req_nomem(smbreq, req)) {
+ return tevent_req_post(req, ev);
}
fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
if (fsp == NULL) {
- return NT_STATUS_FILE_CLOSED;
+ tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
+ return tevent_req_post(req, ev);
}
if (conn != fsp->conn) {
- return NT_STATUS_FILE_CLOSED;
+ tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
+ return tevent_req_post(req, ev);
}
- if (req->session->vuid != fsp->vuid) {
- return NT_STATUS_FILE_CLOSED;
+ if (smb2req->session->vuid != fsp->vuid) {
+ tevent_req_nterror(req, NT_STATUS_FILE_CLOSED);
+ return tevent_req_post(req, ev);
}
if (!CHECK_READ(fsp, smbreq)) {
- return NT_STATUS_ACCESS_DENIED;
+ tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
+ return tevent_req_post(req, ev);
}
- *out_data_buffer = data_blob_talloc(req, NULL, in_length);
- if (in_length > 0 && out_data_buffer->data == NULL) {
- return NT_STATUS_NO_MEMORY;
+ state->out_data = data_blob_talloc(state, NULL, in_length);
+ if (in_length > 0 && tevent_req_nomem(state->out_data.data, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ if (IS_IPC(smbreq->conn)) {
+ tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
+ return tevent_req_post(req, ev);
}
init_strict_lock_struct(fsp,
&lock);
if (!SMB_VFS_STRICT_LOCK(conn, fsp, &lock)) {
- return NT_STATUS_FILE_LOCK_CONFLICT;
+ tevent_req_nterror(req, NT_STATUS_FILE_LOCK_CONFLICT);
+ return tevent_req_post(req, ev);
}
nread = read_file(fsp,
- (char *)out_data_buffer->data,
+ (char *)state->out_data.data,
in_offset,
in_length);
if (nread < 0) {
DEBUG(5,("smbd_smb2_read: read_file[%s] nread[%lld]\n",
fsp->fsp_name, (long long)nread));
- return NT_STATUS_ACCESS_DENIED;
+ tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
+ return tevent_req_post(req, ev);
}
if (nread == 0 && in_length != 0) {
DEBUG(5,("smbd_smb2_read: read_file[%s] end of file\n",
fsp->fsp_name));
- return NT_STATUS_END_OF_FILE;
+ tevent_req_nterror(req, NT_STATUS_END_OF_FILE);
+ return tevent_req_post(req, ev);
+ }
+
+ state->out_data.length = nread;
+ state->out_remaining = 0;
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+}
+
+static NTSTATUS smbd_smb2_read_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out_data,
+ uint32_t *out_remaining)
+{
+ NTSTATUS status;
+ struct smbd_smb2_read_state *state = tevent_req_data(req,
+ struct smbd_smb2_read_state);
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
}
- out_data_buffer->length = nread;
- *out_remaining = 0;
+ *out_data = state->out_data;
+ talloc_steal(mem_ctx, out_data->data);
+ *out_remaining = state->out_remaining;
+
+ tevent_req_received(req);
return NT_STATUS_OK;
}
git.samba.org / sfrench / samba-autobuild / .git / commitdiff