Core SMB2 server
Copyright (C) Stefan Metzmacher 2009
+ Copyright (C) Jeremy Allison 2010
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
*/
#include "includes.h"
+#include "printing.h"
+#include "smbd/smbd.h"
#include "smbd/globals.h"
-#include "../source4/libcli/smb2/smb2_constants.h"
+#include "../libcli/smb/smb_common.h"
+#include "../librpc/gen_ndr/ndr_security.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "messages.h"
+
+int map_smb2_oplock_levels_to_samba(uint8_t in_oplock_level)
+{
+ switch(in_oplock_level) {
+ case SMB2_OPLOCK_LEVEL_NONE:
+ return NO_OPLOCK;
+ case SMB2_OPLOCK_LEVEL_II:
+ return LEVEL_II_OPLOCK;
+ case SMB2_OPLOCK_LEVEL_EXCLUSIVE:
+ return EXCLUSIVE_OPLOCK;
+ case SMB2_OPLOCK_LEVEL_BATCH:
+ return BATCH_OPLOCK;
+ case SMB2_OPLOCK_LEVEL_LEASE:
+ DEBUG(2,("map_smb2_oplock_levels_to_samba: "
+ "LEASE_OPLOCK_REQUESTED\n"));
+ return NO_OPLOCK;
+ default:
+ DEBUG(2,("map_smb2_oplock_levels_to_samba: "
+ "unknown level %u\n",
+ (unsigned int)in_oplock_level));
+ return NO_OPLOCK;
+ }
+}
+
+static uint8_t map_samba_oplock_levels_to_smb2(int oplock_type)
+{
+ if (BATCH_OPLOCK_TYPE(oplock_type)) {
+ return SMB2_OPLOCK_LEVEL_BATCH;
+ } else if (EXCLUSIVE_OPLOCK_TYPE(oplock_type)) {
+ return SMB2_OPLOCK_LEVEL_EXCLUSIVE;
+ } else if (oplock_type == LEVEL_II_OPLOCK) {
+ /*
+ * Don't use LEVEL_II_OPLOCK_TYPE here as
+ * this also includes FAKE_LEVEL_II_OPLOCKs
+ * which are internal only.
+ */
+ return SMB2_OPLOCK_LEVEL_II;
+ } else {
+ return SMB2_OPLOCK_LEVEL_NONE;
+ }
+}
static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
- struct tevent_context *ev,
- struct smbd_smb2_request *smb2req,
- uint8_t in_oplock_level,
- uint32_t in_impersonation_level,
- uint32_t in_desired_access,
- uint32_t in_file_attributes,
- uint32_t in_share_access,
- uint32_t in_create_disposition,
- uint32_t in_create_options,
- const char *in_name);
+ struct tevent_context *ev,
+ struct smbd_smb2_request *smb2req,
+ uint8_t in_oplock_level,
+ uint32_t in_impersonation_level,
+ uint32_t in_desired_access,
+ uint32_t in_file_attributes,
+ uint32_t in_share_access,
+ uint32_t in_create_disposition,
+ uint32_t in_create_options,
+ const char *in_name,
+ struct smb2_create_blobs in_context_blobs);
static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
- uint8_t *out_oplock_level,
- uint32_t *out_create_action,
- NTTIME *out_creation_time,
- NTTIME *out_last_access_time,
- NTTIME *out_last_write_time,
- NTTIME *out_change_time,
- uint64_t *out_allocation_size,
- uint64_t *out_end_of_file,
- uint32_t *out_file_attributes,
- uint64_t *out_file_id_volatile);
-
-static void smbd_smb2_request_create_done(struct tevent_req *subreq);
-NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *req)
+ TALLOC_CTX *mem_ctx,
+ uint8_t *out_oplock_level,
+ uint32_t *out_create_action,
+ NTTIME *out_creation_time,
+ NTTIME *out_last_access_time,
+ NTTIME *out_last_write_time,
+ NTTIME *out_change_time,
+ uint64_t *out_allocation_size,
+ uint64_t *out_end_of_file,
+ uint32_t *out_file_attributes,
+ uint64_t *out_file_id_persistent,
+ uint64_t *out_file_id_volatile,
+ struct smb2_create_blobs *out_context_blobs);
+
+static void smbd_smb2_request_create_done(struct tevent_req *tsubreq);
+NTSTATUS smbd_smb2_request_process_create(struct smbd_smb2_request *smb2req)
{
const uint8_t *inbody;
- int i = req->current_idx;
- size_t expected_body_size = 0x39;
- size_t body_size;
+ const struct iovec *indyniov;
uint8_t in_oplock_level;
uint32_t in_impersonation_level;
uint32_t in_desired_access;
DATA_BLOB in_name_buffer;
char *in_name_string;
size_t in_name_string_size;
+ uint32_t name_offset = 0;
+ uint32_t name_available_length = 0;
+ uint32_t in_context_offset;
+ uint32_t in_context_length;
+ DATA_BLOB in_context_buffer;
+ struct smb2_create_blobs in_context_blobs;
+ uint32_t context_offset = 0;
+ uint32_t context_available_length = 0;
+ uint32_t dyn_offset;
+ NTSTATUS status;
bool ok;
- struct tevent_req *subreq;
-
- if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
- return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
- }
-
- inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
+ struct tevent_req *tsubreq;
- body_size = SVAL(inbody, 0x00);
- if (body_size != expected_body_size) {
- return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ status = smbd_smb2_request_verify_sizes(smb2req, 0x39);
+ if (!NT_STATUS_IS_OK(status)) {
+ return smbd_smb2_request_error(smb2req, status);
}
+ inbody = SMBD_SMB2_IN_BODY_PTR(smb2req);
in_oplock_level = CVAL(inbody, 0x03);
in_impersonation_level = IVAL(inbody, 0x04);
in_create_options = IVAL(inbody, 0x28);
in_name_offset = SVAL(inbody, 0x2C);
in_name_length = SVAL(inbody, 0x2E);
+ in_context_offset = IVAL(inbody, 0x30);
+ in_context_length = IVAL(inbody, 0x34);
+
+ /*
+ * First check if the dynamic name and context buffers
+ * are correctly specified.
+ *
+ * Note: That we don't check if the name and context buffers
+ * overlap
+ */
+
+ dyn_offset = SMB2_HDR_BODY + SMBD_SMB2_IN_BODY_LEN(smb2req);
+
+ if (in_name_offset == 0 && in_name_length == 0) {
+ /* This is ok */
+ name_offset = 0;
+ } else if (in_name_offset < dyn_offset) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
+ } else {
+ name_offset = in_name_offset - dyn_offset;
+ }
+
+ indyniov = SMBD_SMB2_IN_DYN_IOV(smb2req);
- if (in_name_offset != (SMB2_HDR_BODY + (body_size & 0xFFFFFFFE))) {
- return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ if (name_offset > indyniov->iov_len) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
}
- if (in_name_length > req->in.vector[i+2].iov_len) {
- return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ name_available_length = indyniov->iov_len - name_offset;
+
+ if (in_name_length > name_available_length) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
}
- in_name_buffer.data = (uint8_t *)req->in.vector[i+2].iov_base;
+ in_name_buffer.data = (uint8_t *)indyniov->iov_base + name_offset;
in_name_buffer.length = in_name_length;
- ok = convert_string_talloc(req, CH_UTF16, CH_UNIX,
+ if (in_context_offset == 0 && in_context_length == 0) {
+ /* This is ok */
+ context_offset = 0;
+ } else if (in_context_offset < dyn_offset) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
+ } else {
+ context_offset = in_context_offset - dyn_offset;
+ }
+
+ if (context_offset > indyniov->iov_len) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
+ }
+
+ context_available_length = indyniov->iov_len - context_offset;
+
+ if (in_context_length > context_available_length) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_INVALID_PARAMETER);
+ }
+
+ in_context_buffer.data = (uint8_t *)indyniov->iov_base +
+ context_offset;
+ in_context_buffer.length = in_context_length;
+
+ /*
+ * Now interpret the name and context buffers
+ */
+
+ ok = convert_string_talloc(smb2req, CH_UTF16, CH_UNIX,
in_name_buffer.data,
in_name_buffer.length,
&in_name_string,
- &in_name_string_size, false);
+ &in_name_string_size);
if (!ok) {
- return smbd_smb2_request_error(req, NT_STATUS_ILLEGAL_CHARACTER);
+ return smbd_smb2_request_error(smb2req, NT_STATUS_ILLEGAL_CHARACTER);
+ }
+
+ if (in_name_buffer.length == 0) {
+ in_name_string_size = 0;
+ }
+
+ if (strlen(in_name_string) != in_name_string_size) {
+ return smbd_smb2_request_error(smb2req, NT_STATUS_OBJECT_NAME_INVALID);
}
- subreq = smbd_smb2_create_send(req,
- req->conn->smb2.event_ctx,
- req,
+ ZERO_STRUCT(in_context_blobs);
+ status = smb2_create_blob_parse(smb2req, in_context_buffer, &in_context_blobs);
+ if (!NT_STATUS_IS_OK(status)) {
+ return smbd_smb2_request_error(smb2req, status);
+ }
+
+ tsubreq = smbd_smb2_create_send(smb2req,
+ smb2req->sconn->ev_ctx,
+ smb2req,
in_oplock_level,
in_impersonation_level,
in_desired_access,
in_share_access,
in_create_disposition,
in_create_options,
- in_name_string);
- if (subreq == NULL) {
- return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
+ in_name_string,
+ in_context_blobs);
+ if (tsubreq == NULL) {
+ smb2req->subreq = NULL;
+ return smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
}
- tevent_req_set_callback(subreq, smbd_smb2_request_create_done, req);
- return NT_STATUS_OK;
+ tevent_req_set_callback(tsubreq, smbd_smb2_request_create_done, smb2req);
+
+ /*
+ * For now we keep the logic that we do not send STATUS_PENDING
+ * for sharing violations, so we just wait 2 seconds.
+ *
+ * TODO: we need more tests for this.
+ */
+ return smbd_smb2_request_pending_queue(smb2req, tsubreq, 2000000);
}
-static void smbd_smb2_request_create_done(struct tevent_req *subreq)
+static uint64_t get_mid_from_smb2req(struct smbd_smb2_request *smb2req)
{
- struct smbd_smb2_request *req = tevent_req_callback_data(subreq,
+ uint8_t *reqhdr = SMBD_SMB2_OUT_HDR_PTR(smb2req);
+ return BVAL(reqhdr, SMB2_HDR_MESSAGE_ID);
+}
+
+static void smbd_smb2_request_create_done(struct tevent_req *tsubreq)
+{
+ struct smbd_smb2_request *smb2req = tevent_req_callback_data(tsubreq,
struct smbd_smb2_request);
- int i = req->current_idx;
- uint8_t *outhdr;
DATA_BLOB outbody;
DATA_BLOB outdyn;
- uint8_t out_oplock_level;
- uint32_t out_create_action;
- NTTIME out_creation_time;
- NTTIME out_last_access_time;
- NTTIME out_last_write_time;
- NTTIME out_change_time;
- uint64_t out_allocation_size;
- uint64_t out_end_of_file;
- uint32_t out_file_attributes;
- uint64_t out_file_id_volatile;
+ uint8_t out_oplock_level = 0;
+ uint32_t out_create_action = 0;
+ NTTIME out_creation_time = 0;
+ NTTIME out_last_access_time = 0;
+ NTTIME out_last_write_time = 0;
+ NTTIME out_change_time = 0;
+ uint64_t out_allocation_size = 0;
+ uint64_t out_end_of_file = 0;
+ uint32_t out_file_attributes = 0;
+ uint64_t out_file_id_persistent = 0;
+ uint64_t out_file_id_volatile = 0;
+ struct smb2_create_blobs out_context_blobs;
+ DATA_BLOB out_context_buffer;
+ uint16_t out_context_buffer_offset = 0;
NTSTATUS status;
NTSTATUS error; /* transport error */
- status = smbd_smb2_create_recv(subreq,
+ status = smbd_smb2_create_recv(tsubreq,
+ smb2req,
&out_oplock_level,
&out_create_action,
&out_creation_time,
&out_allocation_size,
&out_end_of_file,
&out_file_attributes,
- &out_file_id_volatile);
- TALLOC_FREE(subreq);
+ &out_file_id_persistent,
+ &out_file_id_volatile,
+ &out_context_blobs);
if (!NT_STATUS_IS_OK(status)) {
- error = smbd_smb2_request_error(req, status);
+ error = smbd_smb2_request_error(smb2req, status);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->conn,
+ smbd_server_connection_terminate(smb2req->sconn,
nt_errstr(error));
return;
}
return;
}
- outhdr = (uint8_t *)req->out.vector[i].iov_base;
+ status = smb2_create_blob_push(smb2req, &out_context_buffer, out_context_blobs);
+ if (!NT_STATUS_IS_OK(status)) {
+ error = smbd_smb2_request_error(smb2req, status);
+ if (!NT_STATUS_IS_OK(error)) {
+ smbd_server_connection_terminate(smb2req->sconn,
+ nt_errstr(error));
+ return;
+ }
+ return;
+ }
+
+ if (out_context_buffer.length > 0) {
+ out_context_buffer_offset = SMB2_HDR_BODY + 0x58;
+ }
- outbody = data_blob_talloc(req->out.vector, NULL, 0x58);
+ outbody = data_blob_talloc(smb2req->out.vector, NULL, 0x58);
if (outbody.data == NULL) {
- error = smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
+ error = smbd_smb2_request_error(smb2req, NT_STATUS_NO_MEMORY);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->conn,
+ smbd_server_connection_terminate(smb2req->sconn,
nt_errstr(error));
return;
}
SIVAL(outbody.data, 0x38,
out_file_attributes); /* file attributes */
SIVAL(outbody.data, 0x3C, 0); /* reserved */
- SBVAL(outbody.data, 0x40, 0); /* file id (persistent) */
+ SBVAL(outbody.data, 0x40,
+ out_file_id_persistent); /* file id (persistent) */
SBVAL(outbody.data, 0x48,
out_file_id_volatile); /* file id (volatile) */
- SIVAL(outbody.data, 0x50, 0); /* create contexts offset */
- SIVAL(outbody.data, 0x54, 0); /* create contexts length */
+ SIVAL(outbody.data, 0x50,
+ out_context_buffer_offset); /* create contexts offset */
+ SIVAL(outbody.data, 0x54,
+ out_context_buffer.length); /* create contexts length */
- outdyn = data_blob_const(NULL, 0);
+ outdyn = out_context_buffer;
- error = smbd_smb2_request_done(req, outbody, &outdyn);
+ error = smbd_smb2_request_done(smb2req, outbody, &outdyn);
if (!NT_STATUS_IS_OK(error)) {
- smbd_server_connection_terminate(req->conn,
+ smbd_server_connection_terminate(smb2req->sconn,
nt_errstr(error));
return;
}
struct smbd_smb2_create_state {
struct smbd_smb2_request *smb2req;
+ struct smb_request *smb1req;
+ bool open_was_deferred;
+ struct tevent_timer *te;
+ struct tevent_immediate *im;
+ struct timeval request_time;
+ struct file_id id;
+ DATA_BLOB private_data;
uint8_t out_oplock_level;
uint32_t out_create_action;
NTTIME out_creation_time;
uint64_t out_allocation_size;
uint64_t out_end_of_file;
uint32_t out_file_attributes;
+ uint64_t out_file_id_persistent;
uint64_t out_file_id_volatile;
+ struct smb2_create_blobs out_context_blobs;
};
static struct tevent_req *smbd_smb2_create_send(TALLOC_CTX *mem_ctx,
- struct tevent_context *ev,
- struct smbd_smb2_request *smb2req,
- uint8_t in_oplock_level,
- uint32_t in_impersonation_level,
- uint32_t in_desired_access,
- uint32_t in_file_attributes,
- uint32_t in_share_access,
- uint32_t in_create_disposition,
- uint32_t in_create_options,
- const char *in_name)
+ struct tevent_context *ev,
+ struct smbd_smb2_request *smb2req,
+ uint8_t in_oplock_level,
+ uint32_t in_impersonation_level,
+ uint32_t in_desired_access,
+ uint32_t in_file_attributes,
+ uint32_t in_share_access,
+ uint32_t in_create_disposition,
+ uint32_t in_create_options,
+ const char *in_name,
+ struct smb2_create_blobs in_context_blobs)
{
- struct tevent_req *req;
- struct smbd_smb2_create_state *state;
+ struct tevent_req *req = NULL;
+ struct smbd_smb2_create_state *state = NULL;
NTSTATUS status;
- struct smb_request *smbreq;
- files_struct *result;
+ struct smb_request *smb1req = NULL;
+ files_struct *result = NULL;
int info;
- SMB_STRUCT_STAT sbuf;
- struct smb_filename *smb_fname = NULL;
+ struct timespec write_time_ts;
+ struct smb2_create_blobs out_context_blobs;
+ int requested_oplock_level;
+ struct smb2_create_blob *dhnc = NULL;
+ struct smb2_create_blob *dh2c = NULL;
+ struct smbXsrv_open *op = NULL;
- req = tevent_req_create(mem_ctx, &state,
+ ZERO_STRUCT(out_context_blobs);
+
+ if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
+ requested_oplock_level = SMB2_OPLOCK_LEVEL_NONE;
+ } else {
+ requested_oplock_level = in_oplock_level;
+ }
+
+
+ if (smb2req->subreq == NULL) {
+ /* New create call. */
+ req = tevent_req_create(mem_ctx, &state,
struct smbd_smb2_create_state);
- if (req == NULL) {
- return NULL;
+ if (req == NULL) {
+ return NULL;
+ }
+ state->smb2req = smb2req;
+
+ smb1req = smbd_smb2_fake_smb_request(smb2req);
+ if (tevent_req_nomem(smb1req, req)) {
+ return tevent_req_post(req, ev);
+ }
+ state->smb1req = smb1req;
+ smb2req->subreq = req;
+ DEBUG(10,("smbd_smb2_create: name[%s]\n",
+ in_name));
+ } else {
+ /* Re-entrant create call. */
+ req = smb2req->subreq;
+ state = tevent_req_data(req,
+ struct smbd_smb2_create_state);
+ smb1req = state->smb1req;
+ DEBUG(10,("smbd_smb2_create_send: reentrant for file %s\n",
+ in_name ));
}
- state->smb2req = smb2req;
- DEBUG(10,("smbd_smb2_create: name[%s]\n",
- in_name));
+ dhnc = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_DHNC);
- smbreq = smbd_smb2_fake_smb_request(smb2req);
- if (tevent_req_nomem(smbreq, req)) {
- goto out;
+ if (dhnc) {
+ if (dhnc->data.length != 16) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ if (in_context_blobs.num_blobs != 1) {
+ /*
+ * DHNC should be the only one.
+ */
+ tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return tevent_req_post(req, ev);
+ }
}
- if (IS_IPC(smbreq->conn)) {
+ dh2c = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_DH2C);
+ if (dh2c) {
+ if (dh2c->data.length != 36) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ if (in_context_blobs.num_blobs != 1) {
+ /*
+ * DH2C should be the only one.
+ */
+ tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (IS_IPC(smb1req->conn)) {
const char *pipe_name = in_name;
- if (!lp_nt_pipe_support()) {
- tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
- goto out;
+ if (dhnc || dh2c) {
+ /* durable handles are not supported on IPC$ */
+ tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return tevent_req_post(req, ev);
}
- /* Strip \\ off the name. */
- if (pipe_name[0] == '\\') {
- pipe_name++;
+ if (!lp_nt_pipe_support()) {
+ tevent_req_nterror(req, NT_STATUS_ACCESS_DENIED);
+ return tevent_req_post(req, ev);
}
- status = open_np_file(smbreq, pipe_name, &result);
+ status = open_np_file(smb1req, pipe_name, &result);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
- goto out;
+ return tevent_req_post(req, ev);
}
info = FILE_WAS_OPENED;
- ZERO_STRUCT(sbuf);
- } else if (CAN_PRINT(smbreq->conn)) {
- status = file_new(smbreq, smbreq->conn, &result);
+ } else if (CAN_PRINT(smb1req->conn)) {
+ if (dhnc || dh2c) {
+ /* durable handles are not supported on printers */
+ tevent_req_nterror(req, NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return tevent_req_post(req, ev);
+ }
+
+ status = file_new(smb1req, smb1req->conn, &result);
if(!NT_STATUS_IS_OK(status)) {
tevent_req_nterror(req, status);
- goto out;
+ return tevent_req_post(req, ev);
}
- status = print_fsp_open(smbreq,
- smbreq->conn,
- in_name,
- smbreq->vuid,
- result,
- &sbuf);
+ status = print_spool_open(result, in_name,
+ smb1req->vuid);
if (!NT_STATUS_IS_OK(status)) {
- file_free(smbreq, result);
+ file_free(smb1req, result);
tevent_req_nterror(req, status);
- goto out;
+ return tevent_req_post(req, ev);
}
info = FILE_WAS_CREATED;
} else {
- char *fname = NULL;
+ char *fname;
+ struct smb2_create_blob *exta = NULL;
+ struct ea_list *ea_list = NULL;
+ struct smb2_create_blob *mxac = NULL;
+ NTTIME max_access_time = 0;
+ struct smb2_create_blob *secd = NULL;
+ struct security_descriptor *sec_desc = NULL;
+ struct smb2_create_blob *dhnq = NULL;
+ struct smb2_create_blob *alsi = NULL;
+ uint64_t allocation_size = 0;
+ struct smb2_create_blob *twrp = NULL;
+ struct smb2_create_blob *qfid = NULL;
+ struct GUID create_guid = GUID_zero();
+ bool update_open = false;
+ bool durable_requested = false;
+ uint32_t durable_timeout_msec = 0;
+ bool do_durable_reconnect = false;
+ struct smb2_create_blob *dh2q = NULL;
+ uint64_t persistent_id = 0;
+
+ exta = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_EXTA);
+ mxac = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_MXAC);
+ secd = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_SECD);
+ dhnq = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_DHNQ);
+ alsi = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_ALSI);
+ twrp = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_TWRP);
+ qfid = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_QFID);
+ dh2q = smb2_create_blob_find(&in_context_blobs,
+ SMB2_CREATE_TAG_DH2Q);
+
+ fname = talloc_strdup(state, in_name);
+ if (tevent_req_nomem(fname, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ if (exta) {
+ ea_list = read_nttrans_ea_list(mem_ctx,
+ (const char *)exta->data.data, exta->data.length);
+ if (!ea_list) {
+ DEBUG(10,("smbd_smb2_create_send: read_ea_name_list failed.\n"));
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (mxac) {
+ if (mxac->data.length == 0) {
+ max_access_time = 0;
+ } else if (mxac->data.length == 8) {
+ max_access_time = BVAL(mxac->data.data, 0);
+ } else {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (secd) {
+ enum ndr_err_code ndr_err;
+
+ sec_desc = talloc_zero(state, struct security_descriptor);
+ if (tevent_req_nomem(sec_desc, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ ndr_err = ndr_pull_struct_blob(&secd->data,
+ sec_desc, sec_desc,
+ (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(2,("ndr_pull_security_descriptor failed: %s\n",
+ ndr_errstr(ndr_err)));
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (dhnq) {
+ if (dhnq->data.length != 16) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ if (dh2q) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ /*
+ * durable handle request is processed below.
+ */
+ durable_requested = true;
+ /*
+ * Set the timeout to 16 mins.
+ *
+ * TODO: test this against Windows 2012
+ * as the default for durable v2 is 1 min.
+ */
+ durable_timeout_msec = (16*60*1000);
+ }
+
+ if (dh2q) {
+ const uint8_t *p = dh2q->data.data;
+ uint32_t durable_v2_timeout = 0;
+ DATA_BLOB create_guid_blob;
+
+ if (dh2q->data.length != 32) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ if (dhnq) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ durable_v2_timeout = IVAL(p, 0);
+ create_guid_blob = data_blob_const(p + 16, 16);
+
+ status = GUID_from_ndr_blob(&create_guid_blob,
+ &create_guid);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
+ /*
+ * we need to store the create_guid later
+ */
+ update_open = true;
+
+ /*
+ * durable handle v2 request processed below
+ */
+ durable_requested = true;
+ durable_timeout_msec = durable_v2_timeout;
+ if (durable_timeout_msec == 0) {
+ /*
+ * Set the timeout to 1 min as default.
+ *
+ * This matches Windows 2012.
+ */
+ durable_timeout_msec = (60*1000);
+ }
+ }
+
+ if (dhnc) {
+ persistent_id = BVAL(dhnc->data.data, 0);
+
+ do_durable_reconnect = true;
+ }
+
+ if (dh2c) {
+ const uint8_t *p = dh2c->data.data;
+ DATA_BLOB create_guid_blob;
+
+ persistent_id = BVAL(p, 0);
+ create_guid_blob = data_blob_const(p + 16, 16);
+
+ status = GUID_from_ndr_blob(&create_guid_blob,
+ &create_guid);
+ if (tevent_req_nterror(req, status)) {
+ return tevent_req_post(req, ev);
+ }
+
+ do_durable_reconnect = true;
+ }
+
+ if (alsi) {
+ if (alsi->data.length != 8) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ allocation_size = BVAL(alsi->data.data, 0);
+ }
+
+ if (twrp) {
+ NTTIME nttime;
+ time_t t;
+ struct tm *tm;
+
+ if (twrp->data.length != 8) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ nttime = BVAL(twrp->data.data, 0);
+ t = nt_time_to_unix(nttime);
+ tm = gmtime(&t);
+
+ TALLOC_FREE(fname);
+ fname = talloc_asprintf(state,
+ "@GMT-%04u.%02u.%02u-%02u.%02u.%02u\\%s",
+ tm->tm_year + 1900,
+ tm->tm_mon + 1,
+ tm->tm_mday,
+ tm->tm_hour,
+ tm->tm_min,
+ tm->tm_sec,
+ in_name);
+ if (tevent_req_nomem(fname, req)) {
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (qfid) {
+ if (qfid->data.length != 0) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+ }
/* these are ignored for SMB2 */
in_create_options &= ~(0x10);/* NTCREATEX_OPTIONS_SYNC_ALERT */
in_create_options &= ~(0x20);/* NTCREATEX_OPTIONS_ASYNC_ALERT */
- status = unix_convert(talloc_tos(), smbreq->conn, in_name,
- &smb_fname, 0);
- if (!NT_STATUS_IS_OK(status)) {
- goto out;
+ in_file_attributes &= ~FILE_FLAG_POSIX_SEMANTICS;
+
+ DEBUG(10, ("smbd_smb2_create_send: open execution phase\n"));
+
+ /*
+ * For the backend file open procedure, there are
+ * two possible modes: durable_reconnect or not.
+ */
+ if (do_durable_reconnect) {
+ DATA_BLOB new_cookie = data_blob_null;
+ NTTIME now = timeval_to_nttime(&smb2req->request_time);
+
+ status = smb2srv_open_recreate(smb2req->sconn->conn,
+ smb1req->conn->session_info,
+ persistent_id, create_guid,
+ now, &op);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(3, ("smbd_smb2_create_send: "
+ "smb2srv_open_recreate failed: %s\n",
+ nt_errstr(status)));
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+
+ DEBUG(10, ("smb2_create_send: %s to recreate the "
+ "smb2srv_open struct for a durable handle.\n",
+ op->global->durable ? "succeded" : "failed"));
+
+ if (!op->global->durable) {
+ talloc_free(op);
+ tevent_req_nterror(req,
+ NT_STATUS_OBJECT_NAME_NOT_FOUND);
+ return tevent_req_post(req, ev);
+ }
+
+ status = SMB_VFS_DURABLE_RECONNECT(smb1req->conn,
+ smb1req,
+ op,
+ op->global->backend_cookie,
+ op, &result, &new_cookie);
+ if (!NT_STATUS_IS_OK(status)) {
+ NTSTATUS return_status;
+
+ return_status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+
+ DEBUG(3, ("smbd_smb2_create_send: "
+ "durable_reconnect failed: %s => %s\n",
+ nt_errstr(status),
+ nt_errstr(return_status)));
+
+ tevent_req_nterror(req, return_status);
+ return tevent_req_post(req, ev);
+ }
+
+ data_blob_free(&op->global->backend_cookie);
+ op->global->backend_cookie = new_cookie;
+
+ op->status = NT_STATUS_OK;
+ op->global->disconnect_time = 0;
+
+ /* save the timout for later update */
+ durable_timeout_msec = op->global->durable_timeout_msec;
+
+ update_open = true;
+
+ info = FILE_WAS_OPENED;
+ } else {
+ struct smb_filename *smb_fname = NULL;
+
+ /*
+ * For a DFS path the function parse_dfs_path()
+ * will do the path processing.
+ */
+
+ if (!(smb1req->flags2 & FLAGS2_DFS_PATHNAMES)) {
+ /* convert '\\' into '/' */
+ status = check_path_syntax(fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ status = filename_convert(req,
+ smb1req->conn,
+ smb1req->flags2 & FLAGS2_DFS_PATHNAMES,
+ fname,
+ 0, /* unix_convert flags */
+ NULL, /* ppath_contains_wcards */
+ &smb_fname);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+
+ status = SMB_VFS_CREATE_FILE(smb1req->conn,
+ smb1req,
+ 0, /* root_dir_fid */
+ smb_fname,
+ in_desired_access,
+ in_share_access,
+ in_create_disposition,
+ in_create_options,
+ in_file_attributes,
+ map_smb2_oplock_levels_to_samba(requested_oplock_level),
+ allocation_size,
+ 0, /* private_flags */
+ sec_desc,
+ ea_list,
+ &result,
+ &info);
+ if (!NT_STATUS_IS_OK(status)) {
+ if (open_was_deferred(smb1req->sconn, smb1req->mid)) {
+ return req;
+ }
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ op = result->op;
}
- status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
- if (!NT_STATUS_IS_OK(status)) {
- goto out;
- }
-
- status = SMB_VFS_CREATE_FILE(smbreq->conn,
- smbreq,
- 0, /* root_dir_fid */
- fname,
- 0, /* create_file_flags */
- in_desired_access,
- in_share_access,
- in_create_disposition,
- in_create_options,
- in_file_attributes,
- 0, /* oplock_request */
- 0, /* allocation_size */
- NULL, /* security_descriptor */
- NULL, /* ea_list */
- &result,
- &info,
- &smb_fname->st);
- if (!NT_STATUS_IS_OK(status)) {
- tevent_req_nterror(req, status);
- goto out;
+ /*
+ * here we have op == result->op
+ */
+
+ DEBUG(10, ("smbd_smb2_create_send: "
+ "response construction phase\n"));
+
+ if (mxac) {
+ NTTIME last_write_time;
+
+ unix_timespec_to_nt_time(&last_write_time,
+ result->fsp_name->st.st_ex_mtime);
+ if (last_write_time != max_access_time) {
+ uint8_t p[8];
+ uint32_t max_access_granted;
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+
+ status = smbd_calculate_access_mask(smb1req->conn,
+ result->fsp_name,
+ false,
+ SEC_FLAG_MAXIMUM_ALLOWED,
+ &max_access_granted);
+
+ SIVAL(p, 0, NT_STATUS_V(status));
+ SIVAL(p, 4, max_access_granted);
+
+ status = smb2_create_blob_add(state,
+ &out_context_blobs,
+ SMB2_CREATE_TAG_MXAC,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ }
+ }
+
+ if (durable_requested &&
+ BATCH_OPLOCK_TYPE(result->oplock_type))
+ {
+ status = SMB_VFS_DURABLE_COOKIE(result,
+ op,
+ &op->global->backend_cookie);
+ if (!NT_STATUS_IS_OK(status)) {
+ op->global->backend_cookie = data_blob_null;
+ }
+ }
+ if (op->global->backend_cookie.length > 0) {
+ update_open = true;
+
+ op->global->durable = true;
+ op->global->durable_timeout_msec = durable_timeout_msec;
+ }
+
+ if (update_open) {
+ op->global->create_guid = create_guid;
+
+ status = smbXsrv_open_update(op);
+ DEBUG(10, ("smb2_create_send: smbXsrv_open_update "
+ "returned %s\n",
+ nt_errstr(status)));
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (dhnq && op->global->durable) {
+ uint8_t p[8] = { 0, };
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+
+ status = smb2_create_blob_add(state,
+ &out_context_blobs,
+ SMB2_CREATE_TAG_DHNQ,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (dh2q && op->global->durable) {
+ uint8_t p[8] = { 0, };
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+ uint32_t durable_v2_response_flags = 0;
+
+ SIVAL(p, 0, op->global->durable_timeout_msec);
+ SIVAL(p, 4, durable_v2_response_flags);
+
+ status = smb2_create_blob_add(state, &out_context_blobs,
+ SMB2_CREATE_TAG_DH2Q,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ if (qfid) {
+ uint8_t p[32];
+ uint64_t file_index = get_FileIndex(result->conn,
+ &result->fsp_name->st);
+ DATA_BLOB blob = data_blob_const(p, sizeof(p));
+
+ ZERO_STRUCT(p);
+
+ /* From conversations with Microsoft engineers at
+ the MS plugfest. The first 8 bytes are the "volume index"
+ == inode, the second 8 bytes are the "volume id",
+ == dev. This will be updated in the SMB2 doc. */
+ SBVAL(p, 0, file_index);
+ SIVAL(p, 8, result->fsp_name->st.st_ex_dev);/* FileIndexHigh */
+
+ status = smb2_create_blob_add(state, &out_context_blobs,
+ SMB2_CREATE_TAG_QFID,
+ blob);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
}
- sbuf = smb_fname->st;
}
- smb2req->compat_chain_fsp = smbreq->chain_fsp;
+ smb2req->compat_chain_fsp = smb1req->chain_fsp;
+
+ if(lp_fake_oplocks(SNUM(smb2req->tcon->compat))) {
+ state->out_oplock_level = in_oplock_level;
+ } else {
+ state->out_oplock_level = map_samba_oplock_levels_to_smb2(result->oplock_type);
+ }
- state->out_oplock_level = 0;
if ((in_create_disposition == FILE_SUPERSEDE)
&& (info == FILE_WAS_OVERWRITTEN)) {
state->out_create_action = FILE_WAS_SUPERSEDED;
} else {
state->out_create_action = info;
}
- unix_timespec_to_nt_time(&state->out_creation_time, sbuf.st_ex_btime);
- unix_timespec_to_nt_time(&state->out_last_access_time, sbuf.st_ex_atime);
- unix_timespec_to_nt_time(&state->out_last_write_time,sbuf.st_ex_mtime);
- unix_timespec_to_nt_time(&state->out_change_time, sbuf.st_ex_ctime);
- state->out_allocation_size = sbuf.st_ex_blksize * sbuf.st_ex_blocks;
- state->out_end_of_file = sbuf.st_ex_size;
- state->out_file_attributes = dos_mode(result->conn,
- result->fsp_name,
- &sbuf);
+ state->out_file_attributes = dos_mode(result->conn,
+ result->fsp_name);
+ /* Deal with other possible opens having a modified
+ write time. JRA. */
+ ZERO_STRUCT(write_time_ts);
+ get_file_infos(result->file_id, 0, NULL, &write_time_ts);
+ if (!null_timespec(write_time_ts)) {
+ update_stat_ex_mtime(&result->fsp_name->st, write_time_ts);
+ }
+
+ unix_timespec_to_nt_time(&state->out_creation_time,
+ get_create_timespec(smb1req->conn, result,
+ result->fsp_name));
+ unix_timespec_to_nt_time(&state->out_last_access_time,
+ result->fsp_name->st.st_ex_atime);
+ unix_timespec_to_nt_time(&state->out_last_write_time,
+ result->fsp_name->st.st_ex_mtime);
+ unix_timespec_to_nt_time(&state->out_change_time,
+ get_change_timespec(smb1req->conn, result,
+ result->fsp_name));
+ state->out_allocation_size =
+ SMB_VFS_GET_ALLOC_SIZE(smb1req->conn, result,
+ &(result->fsp_name->st));
+ state->out_end_of_file = result->fsp_name->st.st_ex_size;
if (state->out_file_attributes == 0) {
state->out_file_attributes = FILE_ATTRIBUTE_NORMAL;
}
- state->out_file_id_volatile = result->fnum;
+ state->out_file_id_persistent = result->op->global->open_persistent_id;
+ state->out_file_id_volatile = result->op->global->open_volatile_id;
+ state->out_context_blobs = out_context_blobs;
+
+ DEBUG(10,("smbd_smb2_create_send: %s - %s\n",
+ fsp_str_dbg(result), fsp_fnum_dbg(result)));
tevent_req_done(req);
- out:
- TALLOC_FREE(smb_fname);
return tevent_req_post(req, ev);
}
static NTSTATUS smbd_smb2_create_recv(struct tevent_req *req,
- uint8_t *out_oplock_level,
- uint32_t *out_create_action,
- NTTIME *out_creation_time,
- NTTIME *out_last_access_time,
- NTTIME *out_last_write_time,
- NTTIME *out_change_time,
- uint64_t *out_allocation_size,
- uint64_t *out_end_of_file,
- uint32_t *out_file_attributes,
- uint64_t *out_file_id_volatile)
+ TALLOC_CTX *mem_ctx,
+ uint8_t *out_oplock_level,
+ uint32_t *out_create_action,
+ NTTIME *out_creation_time,
+ NTTIME *out_last_access_time,
+ NTTIME *out_last_write_time,
+ NTTIME *out_change_time,
+ uint64_t *out_allocation_size,
+ uint64_t *out_end_of_file,
+ uint32_t *out_file_attributes,
+ uint64_t *out_file_id_persistent,
+ uint64_t *out_file_id_volatile,
+ struct smb2_create_blobs *out_context_blobs)
{
NTSTATUS status;
struct smbd_smb2_create_state *state = tevent_req_data(req,
*out_allocation_size = state->out_allocation_size;
*out_end_of_file = state->out_end_of_file;
*out_file_attributes = state->out_file_attributes;
+ *out_file_id_persistent = state->out_file_id_persistent;
*out_file_id_volatile = state->out_file_id_volatile;
+ *out_context_blobs = state->out_context_blobs;
+
+ talloc_steal(mem_ctx, state->out_context_blobs.blobs);
tevent_req_received(req);
return NT_STATUS_OK;
}
+
+/*********************************************************
+ Code for dealing with deferred opens.
+*********************************************************/
+
+bool get_deferred_open_message_state_smb2(struct smbd_smb2_request *smb2req,
+ struct timeval *p_request_time,
+ void **pp_state)
+{
+ struct smbd_smb2_create_state *state = NULL;
+ struct tevent_req *req = NULL;
+
+ if (!smb2req) {
+ return false;
+ }
+ req = smb2req->subreq;
+ if (!req) {
+ return false;
+ }
+ state = tevent_req_data(req, struct smbd_smb2_create_state);
+ if (!state) {
+ return false;
+ }
+ if (!state->open_was_deferred) {
+ return false;
+ }
+ if (p_request_time) {
+ *p_request_time = state->request_time;
+ }
+ if (pp_state) {
+ *pp_state = (void *)state->private_data.data;
+ }
+ return true;
+}
+
+/*********************************************************
+ Re-process this call early - requested by message or
+ close.
+*********************************************************/
+
+static struct smbd_smb2_request *find_open_smb2req(
+ struct smbd_server_connection *sconn, uint64_t mid)
+{
+ struct smbd_smb2_request *smb2req;
+
+ for (smb2req = sconn->smb2.requests; smb2req; smb2req = smb2req->next) {
+ uint64_t message_id;
+ if (smb2req->subreq == NULL) {
+ /* This message has been processed. */
+ continue;
+ }
+ if (!tevent_req_is_in_progress(smb2req->subreq)) {
+ /* This message has been processed. */
+ continue;
+ }
+ message_id = get_mid_from_smb2req(smb2req);
+ if (message_id == mid) {
+ return smb2req;
+ }
+ }
+ return NULL;
+}
+
+bool open_was_deferred_smb2(struct smbd_server_connection *sconn, uint64_t mid)
+{
+ struct smbd_smb2_create_state *state = NULL;
+ struct smbd_smb2_request *smb2req;
+
+ smb2req = find_open_smb2req(sconn, mid);
+
+ if (!smb2req) {
+ DEBUG(10,("open_was_deferred_smb2: mid %llu smb2req == NULL\n",
+ (unsigned long long)mid));
+ return false;
+ }
+ if (!smb2req->subreq) {
+ return false;
+ }
+ if (!tevent_req_is_in_progress(smb2req->subreq)) {
+ return false;
+ }
+ state = tevent_req_data(smb2req->subreq,
+ struct smbd_smb2_create_state);
+ if (!state) {
+ return false;
+ }
+ /* It's not in progress if there's no timeout event. */
+ if (!state->open_was_deferred) {
+ return false;
+ }
+
+ DEBUG(10,("open_was_deferred_smb2: mid = %llu\n",
+ (unsigned long long)mid));
+
+ return true;
+}
+
+static void remove_deferred_open_message_smb2_internal(struct smbd_smb2_request *smb2req,
+ uint64_t mid)
+{
+ struct smbd_smb2_create_state *state = NULL;
+
+ if (!smb2req->subreq) {
+ return;
+ }
+ if (!tevent_req_is_in_progress(smb2req->subreq)) {
+ return;
+ }
+ state = tevent_req_data(smb2req->subreq,
+ struct smbd_smb2_create_state);
+ if (!state) {
+ return;
+ }
+
+ DEBUG(10,("remove_deferred_open_message_smb2_internal: "
+ "mid %llu\n",
+ (unsigned long long)mid ));
+
+ state->open_was_deferred = false;
+ /* Ensure we don't have any outstanding timer event. */
+ TALLOC_FREE(state->te);
+ /* Ensure we don't have any outstanding immediate event. */
+ TALLOC_FREE(state->im);
+}
+
+void remove_deferred_open_message_smb2(
+ struct smbd_server_connection *sconn, uint64_t mid)
+{
+ struct smbd_smb2_request *smb2req;
+
+ smb2req = find_open_smb2req(sconn, mid);
+
+ if (!smb2req) {
+ DEBUG(10,("remove_deferred_open_message_smb2: "
+ "can't find mid %llu\n",
+ (unsigned long long)mid ));
+ return;
+ }
+ remove_deferred_open_message_smb2_internal(smb2req, mid);
+}
+
+static void smbd_smb2_create_request_dispatch_immediate(struct tevent_context *ctx,
+ struct tevent_immediate *im,
+ void *private_data)
+{
+ struct smbd_smb2_request *smb2req = talloc_get_type_abort(private_data,
+ struct smbd_smb2_request);
+ struct smbd_server_connection *sconn = smb2req->sconn;
+ uint64_t mid = get_mid_from_smb2req(smb2req);
+ NTSTATUS status;
+
+ DEBUG(10,("smbd_smb2_create_request_dispatch_immediate: "
+ "re-dispatching mid %llu\n",
+ (unsigned long long)mid ));
+
+ status = smbd_smb2_request_dispatch(smb2req);
+ if (!NT_STATUS_IS_OK(status)) {
+ smbd_server_connection_terminate(sconn, nt_errstr(status));
+ return;
+ }
+}
+
+bool schedule_deferred_open_message_smb2(
+ struct smbd_server_connection *sconn, uint64_t mid)
+{
+ struct smbd_smb2_create_state *state = NULL;
+ struct smbd_smb2_request *smb2req;
+
+ smb2req = find_open_smb2req(sconn, mid);
+
+ if (!smb2req) {
+ DEBUG(10,("schedule_deferred_open_message_smb2: "
+ "can't find mid %llu\n",
+ (unsigned long long)mid ));
+ return false;
+ }
+ if (!smb2req->subreq) {
+ return false;
+ }
+ if (!tevent_req_is_in_progress(smb2req->subreq)) {
+ return false;
+ }
+ state = tevent_req_data(smb2req->subreq,
+ struct smbd_smb2_create_state);
+ if (!state) {
+ return false;
+ }
+
+ /* Ensure we don't have any outstanding timer event. */
+ TALLOC_FREE(state->te);
+ /* Ensure we don't have any outstanding immediate event. */
+ TALLOC_FREE(state->im);
+
+ /*
+ * This is subtle. We must null out the callback
+ * before rescheduling, else the first call to
+ * tevent_req_nterror() causes the _receive()
+ * function to be called, this causing tevent_req_post()
+ * to crash.
+ */
+ tevent_req_set_callback(smb2req->subreq, NULL, NULL);
+
+ state->im = tevent_create_immediate(smb2req);
+ if (!state->im) {
+ smbd_server_connection_terminate(smb2req->sconn,
+ nt_errstr(NT_STATUS_NO_MEMORY));
+ return false;
+ }
+
+ DEBUG(10,("schedule_deferred_open_message_smb2: "
+ "re-processing mid %llu\n",
+ (unsigned long long)mid ));
+
+ tevent_schedule_immediate(state->im,
+ smb2req->sconn->ev_ctx,
+ smbd_smb2_create_request_dispatch_immediate,
+ smb2req);
+
+ return true;
+}
+
+static bool smbd_smb2_create_cancel(struct tevent_req *req)
+{
+ struct smbd_smb2_request *smb2req = NULL;
+ struct smbd_smb2_create_state *state = tevent_req_data(req,
+ struct smbd_smb2_create_state);
+ uint64_t mid;
+
+ if (!state) {
+ return false;
+ }
+
+ if (!state->smb2req) {
+ return false;
+ }
+
+ smb2req = state->smb2req;
+ mid = get_mid_from_smb2req(smb2req);
+
+ if (is_deferred_open_async(state->private_data.data)) {
+ /* Can't cancel an async create. */
+ return false;
+ }
+
+ remove_deferred_open_message_smb2_internal(smb2req, mid);
+
+ tevent_req_defer_callback(req, smb2req->sconn->ev_ctx);
+ tevent_req_nterror(req, NT_STATUS_CANCELLED);
+ return true;
+}
+
+bool push_deferred_open_message_smb2(struct smbd_smb2_request *smb2req,
+ struct timeval request_time,
+ struct timeval timeout,
+ struct file_id id,
+ char *private_data,
+ size_t priv_len)
+{
+ struct tevent_req *req = NULL;
+ struct smbd_smb2_create_state *state = NULL;
+ struct timeval end_time;
+
+ if (!smb2req) {
+ return false;
+ }
+ req = smb2req->subreq;
+ if (!req) {
+ return false;
+ }
+ state = tevent_req_data(req, struct smbd_smb2_create_state);
+ if (!state) {
+ return false;
+ }
+ state->id = id;
+ state->request_time = request_time;
+ state->private_data = data_blob_talloc(state, private_data,
+ priv_len);
+ if (!state->private_data.data) {
+ return false;
+ }
+
+ /* Re-schedule us to retry on timer expiry. */
+ end_time = timeval_sum(&request_time, &timeout);
+
+ DEBUG(10,("push_deferred_open_message_smb2: "
+ "timeout at %s\n",
+ timeval_string(talloc_tos(),
+ &end_time,
+ true) ));
+
+ state->open_was_deferred = true;
+
+ /* allow this request to be canceled */
+ tevent_req_set_cancel_fn(req, smbd_smb2_create_cancel);
+
+ return true;
+}
git.samba.org / obnox / samba / samba-obnox.git / blobdiff