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smbXsrv_tcon.c
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smbXsrv_tcon.c
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/*
Unix SMB/CIFS implementation.
Copyright (C) Stefan Metzmacher 2011-2012
Copyright (C) Michael Adam 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 "system/filesys.h"
#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "dbwrap/dbwrap.h"
#include "dbwrap/dbwrap_rbt.h"
#include "dbwrap/dbwrap_open.h"
#include "messages.h"
#include "lib/util/util_tdb.h"
#include "librpc/gen_ndr/ndr_smbXsrv.h"
#include "serverid.h"
struct smbXsrv_tcon_table {
struct {
struct db_context *db_ctx;
uint32_t lowest_id;
uint32_t highest_id;
uint32_t max_tcons;
uint32_t num_tcons;
} local;
struct {
struct db_context *db_ctx;
} global;
};
static struct db_context *smbXsrv_tcon_global_db_ctx = NULL;
NTSTATUS smbXsrv_tcon_global_init(void)
{
char *global_path = NULL;
struct db_context *db_ctx = NULL;
if (smbXsrv_tcon_global_db_ctx != NULL) {
return NT_STATUS_OK;
}
global_path = lock_path("smbXsrv_tcon_global.tdb");
if (global_path == NULL) {
return NT_STATUS_NO_MEMORY;
}
db_ctx = db_open(NULL, global_path,
0, /* hash_size */
TDB_DEFAULT |
TDB_CLEAR_IF_FIRST |
TDB_INCOMPATIBLE_HASH,
O_RDWR | O_CREAT, 0600,
DBWRAP_LOCK_ORDER_1,
DBWRAP_FLAG_NONE);
TALLOC_FREE(global_path);
if (db_ctx == NULL) {
NTSTATUS status;
status = map_nt_error_from_unix_common(errno);
return status;
}
smbXsrv_tcon_global_db_ctx = db_ctx;
return NT_STATUS_OK;
}
/*
* NOTE:
* We need to store the keys in big endian so that dbwrap_rbt's memcmp
* has the same result as integer comparison between the uint32_t
* values.
*
* TODO: implement string based key
*/
#define SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE sizeof(uint32_t)
static TDB_DATA smbXsrv_tcon_global_id_to_key(uint32_t id,
uint8_t *key_buf)
{
TDB_DATA key;
RSIVAL(key_buf, 0, id);
key = make_tdb_data(key_buf, SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE);
return key;
}
#if 0
static NTSTATUS smbXsrv_tcon_global_key_to_id(TDB_DATA key, uint32_t *id)
{
if (id == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
if (key.dsize != SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE) {
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
*id = RIVAL(key.dptr, 0);
return NT_STATUS_OK;
}
#endif
#define SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE sizeof(uint32_t)
static TDB_DATA smbXsrv_tcon_local_id_to_key(uint32_t id,
uint8_t *key_buf)
{
TDB_DATA key;
RSIVAL(key_buf, 0, id);
key = make_tdb_data(key_buf, SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE);
return key;
}
static NTSTATUS smbXsrv_tcon_local_key_to_id(TDB_DATA key, uint32_t *id)
{
if (id == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
if (key.dsize != SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE) {
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
*id = RIVAL(key.dptr, 0);
return NT_STATUS_OK;
}
static struct db_record *smbXsrv_tcon_global_fetch_locked(
struct db_context *db,
uint32_t id,
TALLOC_CTX *mem_ctx)
{
TDB_DATA key;
uint8_t key_buf[SMBXSRV_TCON_GLOBAL_TDB_KEY_SIZE];
struct db_record *rec = NULL;
key = smbXsrv_tcon_global_id_to_key(id, key_buf);
rec = dbwrap_fetch_locked(db, mem_ctx, key);
if (rec == NULL) {
DBG_DEBUG("Failed to lock global id 0x%08x, key '%s'\n", id,
hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
}
return rec;
}
static struct db_record *smbXsrv_tcon_local_fetch_locked(
struct db_context *db,
uint32_t id,
TALLOC_CTX *mem_ctx)
{
TDB_DATA key;
uint8_t key_buf[SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE];
struct db_record *rec = NULL;
key = smbXsrv_tcon_local_id_to_key(id, key_buf);
rec = dbwrap_fetch_locked(db, mem_ctx, key);
if (rec == NULL) {
DBG_DEBUG("Failed to lock local id 0x%08x, key '%s'\n", id,
hex_encode_talloc(talloc_tos(), key.dptr, key.dsize));
}
return rec;
}
static NTSTATUS smbXsrv_tcon_table_init(TALLOC_CTX *mem_ctx,
struct smbXsrv_tcon_table *table,
uint32_t lowest_id,
uint32_t highest_id,
uint32_t max_tcons)
{
NTSTATUS status;
uint64_t max_range;
if (lowest_id > highest_id) {
return NT_STATUS_INTERNAL_ERROR;
}
max_range = highest_id;
max_range -= lowest_id;
max_range += 1;
if (max_tcons > max_range) {
return NT_STATUS_INTERNAL_ERROR;
}
ZERO_STRUCTP(table);
table->local.db_ctx = db_open_rbt(table);
if (table->local.db_ctx == NULL) {
return NT_STATUS_NO_MEMORY;
}
table->local.lowest_id = lowest_id;
table->local.highest_id = highest_id;
table->local.max_tcons = max_tcons;
status = smbXsrv_tcon_global_init();
if (!NT_STATUS_IS_OK(status)) {
return status;
}
table->global.db_ctx = smbXsrv_tcon_global_db_ctx;
return NT_STATUS_OK;
}
struct smb1srv_tcon_local_allocate_state {
const uint32_t lowest_id;
const uint32_t highest_id;
uint32_t last_id;
uint32_t useable_id;
NTSTATUS status;
};
static int smb1srv_tcon_local_allocate_traverse(struct db_record *rec,
void *private_data)
{
struct smb1srv_tcon_local_allocate_state *state =
(struct smb1srv_tcon_local_allocate_state *)private_data;
TDB_DATA key = dbwrap_record_get_key(rec);
uint32_t id = 0;
NTSTATUS status;
status = smbXsrv_tcon_local_key_to_id(key, &id);
if (!NT_STATUS_IS_OK(status)) {
state->status = status;
return -1;
}
if (id <= state->last_id) {
state->status = NT_STATUS_INTERNAL_DB_CORRUPTION;
return -1;
}
state->last_id = id;
if (id > state->useable_id) {
state->status = NT_STATUS_OK;
return -1;
}
if (state->useable_id == state->highest_id) {
state->status = NT_STATUS_INSUFFICIENT_RESOURCES;
return -1;
}
state->useable_id +=1;
return 0;
}
static NTSTATUS smb1srv_tcon_local_allocate_id(struct db_context *db,
uint32_t lowest_id,
uint32_t highest_id,
TALLOC_CTX *mem_ctx,
struct db_record **_rec,
uint32_t *_id)
{
struct smb1srv_tcon_local_allocate_state state = {
.lowest_id = lowest_id,
.highest_id = highest_id,
.last_id = 0,
.useable_id = lowest_id,
.status = NT_STATUS_INTERNAL_ERROR,
};
uint32_t i;
uint32_t range;
NTSTATUS status;
int count = 0;
*_rec = NULL;
*_id = 0;
if (lowest_id > highest_id) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
/*
* first we try randomly
*/
range = (highest_id - lowest_id) + 1;
for (i = 0; i < (range / 2); i++) {
uint32_t id;
TDB_DATA val;
struct db_record *rec = NULL;
id = generate_random() % range;
id += lowest_id;
if (id < lowest_id) {
id = lowest_id;
}
if (id > highest_id) {
id = highest_id;
}
rec = smbXsrv_tcon_local_fetch_locked(db, id, mem_ctx);
if (rec == NULL) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
val = dbwrap_record_get_value(rec);
if (val.dsize != 0) {
TALLOC_FREE(rec);
continue;
}
*_rec = rec;
*_id = id;
return NT_STATUS_OK;
}
/*
* if the range is almost full,
* we traverse the whole table
* (this relies on sorted behavior of dbwrap_rbt)
*/
status = dbwrap_traverse_read(db, smb1srv_tcon_local_allocate_traverse,
&state, &count);
if (NT_STATUS_IS_OK(status)) {
if (NT_STATUS_IS_OK(state.status)) {
return NT_STATUS_INTERNAL_ERROR;
}
if (!NT_STATUS_EQUAL(state.status, NT_STATUS_INTERNAL_ERROR)) {
return state.status;
}
if (state.useable_id <= state.highest_id) {
state.status = NT_STATUS_OK;
} else {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
} else if (!NT_STATUS_EQUAL(status, NT_STATUS_INTERNAL_DB_CORRUPTION)) {
/*
* Here we really expect NT_STATUS_INTERNAL_DB_CORRUPTION!
*
* If we get anything else it is an error, because it
* means we did not manage to find a free slot in
* the db.
*/
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
if (NT_STATUS_IS_OK(state.status)) {
uint32_t id;
TDB_DATA val;
struct db_record *rec = NULL;
id = state.useable_id;
rec = smbXsrv_tcon_local_fetch_locked(db, id, mem_ctx);
if (rec == NULL) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
val = dbwrap_record_get_value(rec);
if (val.dsize != 0) {
TALLOC_FREE(rec);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
*_rec = rec;
*_id = id;
return NT_STATUS_OK;
}
return state.status;
}
struct smbXsrv_tcon_local_fetch_state {
struct smbXsrv_tcon *tcon;
NTSTATUS status;
};
static void smbXsrv_tcon_local_fetch_parser(TDB_DATA key, TDB_DATA data,
void *private_data)
{
struct smbXsrv_tcon_local_fetch_state *state =
(struct smbXsrv_tcon_local_fetch_state *)private_data;
void *ptr;
if (data.dsize != sizeof(ptr)) {
state->status = NT_STATUS_INTERNAL_DB_ERROR;
return;
}
memcpy(&ptr, data.dptr, data.dsize);
state->tcon = talloc_get_type_abort(ptr, struct smbXsrv_tcon);
state->status = NT_STATUS_OK;
}
static NTSTATUS smbXsrv_tcon_local_lookup(struct smbXsrv_tcon_table *table,
uint32_t tcon_local_id,
NTTIME now,
struct smbXsrv_tcon **_tcon)
{
struct smbXsrv_tcon_local_fetch_state state = {
.tcon = NULL,
.status = NT_STATUS_INTERNAL_ERROR,
};
uint8_t key_buf[SMBXSRV_TCON_LOCAL_TDB_KEY_SIZE];
TDB_DATA key;
NTSTATUS status;
*_tcon = NULL;
if (tcon_local_id == 0) {
return NT_STATUS_NETWORK_NAME_DELETED;
}
if (table == NULL) {
/* this might happen before the end of negprot */
return NT_STATUS_NETWORK_NAME_DELETED;
}
if (table->local.db_ctx == NULL) {
return NT_STATUS_INTERNAL_ERROR;
}
key = smbXsrv_tcon_local_id_to_key(tcon_local_id, key_buf);
status = dbwrap_parse_record(table->local.db_ctx, key,
smbXsrv_tcon_local_fetch_parser,
&state);
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
return NT_STATUS_NETWORK_NAME_DELETED;
} else if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (!NT_STATUS_IS_OK(state.status)) {
return state.status;
}
if (NT_STATUS_EQUAL(state.tcon->status, NT_STATUS_NETWORK_NAME_DELETED)) {
return NT_STATUS_NETWORK_NAME_DELETED;
}
state.tcon->idle_time = now;
*_tcon = state.tcon;
return state.tcon->status;
}
static int smbXsrv_tcon_global_destructor(struct smbXsrv_tcon_global0 *global)
{
return 0;
}
static void smbXsrv_tcon_global_verify_record(struct db_record *db_rec,
bool *is_free,
bool *was_free,
TALLOC_CTX *mem_ctx,
struct smbXsrv_tcon_global0 **_g);
static NTSTATUS smbXsrv_tcon_global_allocate(struct db_context *db,
TALLOC_CTX *mem_ctx,
struct smbXsrv_tcon_global0 **_global)
{
uint32_t i;
struct smbXsrv_tcon_global0 *global = NULL;
uint32_t last_free = 0;
const uint32_t min_tries = 3;
*_global = NULL;
global = talloc_zero(mem_ctx, struct smbXsrv_tcon_global0);
if (global == NULL) {
return NT_STATUS_NO_MEMORY;
}
talloc_set_destructor(global, smbXsrv_tcon_global_destructor);
/*
* Here we just randomly try the whole 32-bit space
*
* We use just 32-bit, because we want to reuse the
* ID for SRVSVC.
*/
for (i = 0; i < UINT32_MAX; i++) {
bool is_free = false;
bool was_free = false;
uint32_t id;
if (i >= min_tries && last_free != 0) {
id = last_free;
} else {
id = generate_random();
}
if (id == 0) {
id++;
}
if (id == UINT32_MAX) {
id--;
}
global->db_rec = smbXsrv_tcon_global_fetch_locked(db, id,
mem_ctx);
if (global->db_rec == NULL) {
talloc_free(global);
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
smbXsrv_tcon_global_verify_record(global->db_rec,
&is_free,
&was_free,
NULL, NULL);
if (!is_free) {
TALLOC_FREE(global->db_rec);
continue;
}
if (!was_free && i < min_tries) {
/*
* The session_id is free now,
* but was not free before.
*
* This happens if a smbd crashed
* and did not cleanup the record.
*
* If this is one of our first tries,
* then we try to find a real free one.
*/
if (last_free == 0) {
last_free = id;
}
TALLOC_FREE(global->db_rec);
continue;
}
global->tcon_global_id = id;
*_global = global;
return NT_STATUS_OK;
}
/* should not be reached */
talloc_free(global);
return NT_STATUS_INTERNAL_ERROR;
}
static void smbXsrv_tcon_global_verify_record(struct db_record *db_rec,
bool *is_free,
bool *was_free,
TALLOC_CTX *mem_ctx,
struct smbXsrv_tcon_global0 **_g)
{
TDB_DATA key;
TDB_DATA val;
DATA_BLOB blob;
struct smbXsrv_tcon_globalB global_blob;
enum ndr_err_code ndr_err;
struct smbXsrv_tcon_global0 *global = NULL;
bool exists;
TALLOC_CTX *frame = talloc_stackframe();
*is_free = false;
if (was_free) {
*was_free = false;
}
if (_g) {
*_g = NULL;
}
key = dbwrap_record_get_key(db_rec);
val = dbwrap_record_get_value(db_rec);
if (val.dsize == 0) {
TALLOC_FREE(frame);
*is_free = true;
if (was_free) {
*was_free = true;
}
return;
}
blob = data_blob_const(val.dptr, val.dsize);
ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
(ndr_pull_flags_fn_t)ndr_pull_smbXsrv_tcon_globalB);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
DEBUG(1,("smbXsrv_tcon_global_verify_record: "
"key '%s' ndr_pull_struct_blob - %s\n",
hex_encode_talloc(frame, key.dptr, key.dsize),
nt_errstr(status)));
TALLOC_FREE(frame);
return;
}
DEBUG(10,("smbXsrv_tcon_global_verify_record\n"));
if (DEBUGLVL(10)) {
NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
}
if (global_blob.version != SMBXSRV_VERSION_0) {
DEBUG(0,("smbXsrv_tcon_global_verify_record: "
"key '%s' use unsupported version %u\n",
hex_encode_talloc(frame, key.dptr, key.dsize),
global_blob.version));
NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
TALLOC_FREE(frame);
return;
}
global = global_blob.info.info0;
exists = serverid_exists(&global->server_id);
if (!exists) {
struct server_id_buf idbuf;
DEBUG(2,("smbXsrv_tcon_global_verify_record: "
"key '%s' server_id %s does not exist.\n",
hex_encode_talloc(frame, key.dptr, key.dsize),
server_id_str_buf(global->server_id, &idbuf)));
if (DEBUGLVL(2)) {
NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
}
TALLOC_FREE(frame);
dbwrap_record_delete(db_rec);
*is_free = true;
return;
}
if (_g) {
*_g = talloc_move(mem_ctx, &global);
}
TALLOC_FREE(frame);
}
static NTSTATUS smbXsrv_tcon_global_store(struct smbXsrv_tcon_global0 *global)
{
struct smbXsrv_tcon_globalB global_blob;
DATA_BLOB blob = data_blob_null;
TDB_DATA key;
TDB_DATA val;
NTSTATUS status;
enum ndr_err_code ndr_err;
/*
* TODO: if we use other versions than '0'
* we would add glue code here, that would be able to
* store the information in the old format.
*/
if (global->db_rec == NULL) {
return NT_STATUS_INTERNAL_ERROR;
}
key = dbwrap_record_get_key(global->db_rec);
val = dbwrap_record_get_value(global->db_rec);
ZERO_STRUCT(global_blob);
global_blob.version = smbXsrv_version_global_current();
if (val.dsize >= 8) {
global_blob.seqnum = IVAL(val.dptr, 4);
}
global_blob.seqnum += 1;
global_blob.info.info0 = global;
ndr_err = ndr_push_struct_blob(&blob, global->db_rec, &global_blob,
(ndr_push_flags_fn_t)ndr_push_smbXsrv_tcon_globalB);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
status = ndr_map_error2ntstatus(ndr_err);
DEBUG(1,("smbXsrv_tcon_global_store: key '%s' ndr_push - %s\n",
hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
nt_errstr(status)));
TALLOC_FREE(global->db_rec);
return status;
}
val = make_tdb_data(blob.data, blob.length);
status = dbwrap_record_store(global->db_rec, val, TDB_REPLACE);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1,("smbXsrv_tcon_global_store: key '%s' store - %s\n",
hex_encode_talloc(global->db_rec, key.dptr, key.dsize),
nt_errstr(status)));
TALLOC_FREE(global->db_rec);
return status;
}
if (DEBUGLVL(10)) {
DEBUG(10,("smbXsrv_tcon_global_store: key '%s' stored\n",
hex_encode_talloc(global->db_rec, key.dptr, key.dsize)));
NDR_PRINT_DEBUG(smbXsrv_tcon_globalB, &global_blob);
}
TALLOC_FREE(global->db_rec);
return NT_STATUS_OK;
}
static int smbXsrv_tcon_destructor(struct smbXsrv_tcon *tcon)
{
NTSTATUS status;
status = smbXsrv_tcon_disconnect(tcon, 0);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("smbXsrv_tcon_destructor: "
"smbXsrv_tcon_disconnect() failed - %s\n",
nt_errstr(status)));
}
TALLOC_FREE(tcon->global);
return 0;
}
static NTSTATUS smbXsrv_tcon_create(struct smbXsrv_tcon_table *table,
enum protocol_types protocol,
struct server_id server_id,
NTTIME now,
struct smbXsrv_tcon **_tcon)
{
struct db_record *local_rec = NULL;
struct smbXsrv_tcon *tcon = NULL;
void *ptr = NULL;
TDB_DATA val;
struct smbXsrv_tcon_global0 *global = NULL;
NTSTATUS status;
if (table->local.num_tcons >= table->local.max_tcons) {
return NT_STATUS_INSUFFICIENT_RESOURCES;
}
tcon = talloc_zero(table, struct smbXsrv_tcon);
if (tcon == NULL) {
return NT_STATUS_NO_MEMORY;
}
tcon->table = table;
tcon->status = NT_STATUS_INTERNAL_ERROR;
tcon->idle_time = now;
status = smbXsrv_tcon_global_allocate(table->global.db_ctx,
tcon, &global);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(tcon);
return status;
}
tcon->global = global;
if (protocol >= PROTOCOL_SMB2_02) {
uint64_t id = global->tcon_global_id;
global->tcon_wire_id = id;
tcon->local_id = global->tcon_global_id;
local_rec = smbXsrv_tcon_local_fetch_locked(table->local.db_ctx,
tcon->local_id,
tcon /* TALLOC_CTX */);
if (local_rec == NULL) {
TALLOC_FREE(tcon);
return NT_STATUS_NO_MEMORY;
}
val = dbwrap_record_get_value(local_rec);
if (val.dsize != 0) {
TALLOC_FREE(tcon);
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
} else {
status = smb1srv_tcon_local_allocate_id(table->local.db_ctx,
table->local.lowest_id,
table->local.highest_id,
tcon,
&local_rec,
&tcon->local_id);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(tcon);
return status;
}
global->tcon_wire_id = tcon->local_id;
}
global->creation_time = now;
global->server_id = server_id;
ptr = tcon;
val = make_tdb_data((uint8_t const *)&ptr, sizeof(ptr));
status = dbwrap_record_store(local_rec, val, TDB_REPLACE);
TALLOC_FREE(local_rec);
if (!NT_STATUS_IS_OK(status)) {
TALLOC_FREE(tcon);
return status;
}
table->local.num_tcons += 1;
talloc_set_destructor(tcon, smbXsrv_tcon_destructor);
status = smbXsrv_tcon_global_store(global);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("smbXsrv_tcon_create: "
"global_id (0x%08x) store failed - %s\n",
tcon->global->tcon_global_id,
nt_errstr(status)));
TALLOC_FREE(tcon);
return status;
}
if (DEBUGLVL(10)) {
struct smbXsrv_tconB tcon_blob;
ZERO_STRUCT(tcon_blob);
tcon_blob.version = SMBXSRV_VERSION_0;
tcon_blob.info.info0 = tcon;
DEBUG(10,("smbXsrv_tcon_create: global_id (0x%08x) stored\n",
tcon->global->tcon_global_id));
NDR_PRINT_DEBUG(smbXsrv_tconB, &tcon_blob);
}
*_tcon = tcon;
return NT_STATUS_OK;
}
NTSTATUS smbXsrv_tcon_update(struct smbXsrv_tcon *tcon)
{
struct smbXsrv_tcon_table *table = tcon->table;
NTSTATUS status;
if (tcon->global->db_rec != NULL) {
DEBUG(0, ("smbXsrv_tcon_update(0x%08x): "
"Called with db_rec != NULL'\n",
tcon->global->tcon_global_id));
return NT_STATUS_INTERNAL_ERROR;
}
tcon->global->db_rec = smbXsrv_tcon_global_fetch_locked(
table->global.db_ctx,
tcon->global->tcon_global_id,
tcon->global /* TALLOC_CTX */);
if (tcon->global->db_rec == NULL) {
return NT_STATUS_INTERNAL_DB_ERROR;
}
status = smbXsrv_tcon_global_store(tcon->global);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("smbXsrv_tcon_update: "
"global_id (0x%08x) store failed - %s\n",
tcon->global->tcon_global_id,
nt_errstr(status)));
return status;
}
if (DEBUGLVL(10)) {
struct smbXsrv_tconB tcon_blob;
ZERO_STRUCT(tcon_blob);
tcon_blob.version = SMBXSRV_VERSION_0;
tcon_blob.info.info0 = tcon;
DEBUG(10,("smbXsrv_tcon_update: global_id (0x%08x) stored\n",
tcon->global->tcon_global_id));
NDR_PRINT_DEBUG(smbXsrv_tconB, &tcon_blob);
}
return NT_STATUS_OK;
}
NTSTATUS smbXsrv_tcon_disconnect(struct smbXsrv_tcon *tcon, uint64_t vuid)
{
struct smbXsrv_tcon_table *table;
struct db_record *local_rec = NULL;
struct db_record *global_rec = NULL;
NTSTATUS status;
NTSTATUS error = NT_STATUS_OK;
if (tcon->table == NULL) {
return NT_STATUS_OK;
}
table = tcon->table;
tcon->table = NULL;
tcon->status = NT_STATUS_NETWORK_NAME_DELETED;
global_rec = tcon->global->db_rec;
tcon->global->db_rec = NULL;
if (global_rec == NULL) {
global_rec = smbXsrv_tcon_global_fetch_locked(
table->global.db_ctx,
tcon->global->tcon_global_id,
tcon->global /* TALLOC_CTX */);
if (global_rec == NULL) {
error = NT_STATUS_INTERNAL_ERROR;
}
}
if (global_rec != NULL) {
status = dbwrap_record_delete(global_rec);
if (!NT_STATUS_IS_OK(status)) {
TDB_DATA key = dbwrap_record_get_key(global_rec);
DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
"failed to delete global key '%s': %s\n",
tcon->global->tcon_global_id,
tcon->global->share_name,
hex_encode_talloc(global_rec, key.dptr,
key.dsize),
nt_errstr(status)));
error = status;
}
}
TALLOC_FREE(global_rec);
local_rec = tcon->db_rec;
if (local_rec == NULL) {
local_rec = smbXsrv_tcon_local_fetch_locked(table->local.db_ctx,
tcon->local_id,
tcon /* TALLOC_CTX */);
if (local_rec == NULL) {
error = NT_STATUS_INTERNAL_ERROR;
}
}
if (local_rec != NULL) {
status = dbwrap_record_delete(local_rec);
if (!NT_STATUS_IS_OK(status)) {
TDB_DATA key = dbwrap_record_get_key(local_rec);
DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
"failed to delete local key '%s': %s\n",
tcon->global->tcon_global_id,
tcon->global->share_name,
hex_encode_talloc(local_rec, key.dptr,
key.dsize),
nt_errstr(status)));
error = status;
}
table->local.num_tcons -= 1;
}
if (tcon->db_rec == NULL) {
TALLOC_FREE(local_rec);
}
tcon->db_rec = NULL;
if (tcon->compat) {
bool ok;
ok = set_current_service(tcon->compat, 0, true);
if (!ok) {
status = NT_STATUS_INTERNAL_ERROR;
DEBUG(0, ("smbXsrv_tcon_disconnect(0x%08x, '%s'): "
"set_current_service() failed: %s\n",
tcon->global->tcon_global_id,
tcon->global->share_name,
nt_errstr(status)));
tcon->compat = NULL;
return status;
}
close_cnum(tcon->compat, vuid);
tcon->compat = NULL;
}
return error;
}
struct smbXsrv_tcon_disconnect_all_state {
uint64_t vuid;
NTSTATUS first_status;
int errors;
};
static int smbXsrv_tcon_disconnect_all_callback(struct db_record *local_rec,
void *private_data);
static NTSTATUS smbXsrv_tcon_disconnect_all(struct smbXsrv_tcon_table *table,
uint64_t vuid)