mirror of
https://github.com/samba-team/samba.git
synced 2024-12-30 13:18:05 +03:00
cc76aaeb62
This reflects that the messaging context is also used outside of the server processes. The command used for the rename: find . -name '*.[hc]' -print0 | xargs -0 sed -i 's/server_messaging_context/global_messaging_context/' Signed-off-by: Christof Schmitt <cs@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
1973 lines
49 KiB
C
1973 lines
49 KiB
C
/*
|
|
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 <tevent.h>
|
|
#include "lib/util/server_id.h"
|
|
#include "smbd/smbd.h"
|
|
#include "smbd/globals.h"
|
|
#include "dbwrap/dbwrap.h"
|
|
#include "dbwrap/dbwrap_rbt.h"
|
|
#include "dbwrap/dbwrap_open.h"
|
|
#include "dbwrap/dbwrap_watch.h"
|
|
#include "session.h"
|
|
#include "auth.h"
|
|
#include "auth/gensec/gensec.h"
|
|
#include "../lib/tsocket/tsocket.h"
|
|
#include "../libcli/security/security.h"
|
|
#include "messages.h"
|
|
#include "lib/util/util_tdb.h"
|
|
#include "librpc/gen_ndr/ndr_smbXsrv.h"
|
|
#include "serverid.h"
|
|
#include "lib/util/tevent_ntstatus.h"
|
|
|
|
struct smbXsrv_session_table {
|
|
struct {
|
|
struct db_context *db_ctx;
|
|
uint32_t lowest_id;
|
|
uint32_t highest_id;
|
|
uint32_t max_sessions;
|
|
uint32_t num_sessions;
|
|
} local;
|
|
struct {
|
|
struct db_context *db_ctx;
|
|
} global;
|
|
};
|
|
|
|
static struct db_context *smbXsrv_session_global_db_ctx = NULL;
|
|
|
|
NTSTATUS smbXsrv_session_global_init(struct messaging_context *msg_ctx)
|
|
{
|
|
char *global_path = NULL;
|
|
struct db_context *backend = NULL;
|
|
struct db_context *db_ctx = NULL;
|
|
|
|
if (smbXsrv_session_global_db_ctx != NULL) {
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/*
|
|
* This contains secret information like session keys!
|
|
*/
|
|
global_path = lock_path(talloc_tos(), "smbXsrv_session_global.tdb");
|
|
if (global_path == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
backend = 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 (backend == NULL) {
|
|
NTSTATUS status;
|
|
|
|
status = map_nt_error_from_unix_common(errno);
|
|
|
|
return status;
|
|
}
|
|
|
|
db_ctx = db_open_watched(NULL, &backend, global_messaging_context());
|
|
if (db_ctx == NULL) {
|
|
TALLOC_FREE(backend);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
smbXsrv_session_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_SESSION_GLOBAL_TDB_KEY_SIZE sizeof(uint32_t)
|
|
|
|
static TDB_DATA smbXsrv_session_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_SESSION_GLOBAL_TDB_KEY_SIZE);
|
|
|
|
return key;
|
|
}
|
|
|
|
#if 0
|
|
static NTSTATUS smbXsrv_session_global_key_to_id(TDB_DATA key, uint32_t *id)
|
|
{
|
|
if (id == NULL) {
|
|
return NT_STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (key.dsize != SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE) {
|
|
return NT_STATUS_INTERNAL_DB_CORRUPTION;
|
|
}
|
|
|
|
*id = RIVAL(key.dptr, 0);
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
#endif
|
|
|
|
#define SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE sizeof(uint32_t)
|
|
|
|
static TDB_DATA smbXsrv_session_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_SESSION_LOCAL_TDB_KEY_SIZE);
|
|
|
|
return key;
|
|
}
|
|
|
|
static NTSTATUS smbXsrv_session_local_key_to_id(TDB_DATA key, uint32_t *id)
|
|
{
|
|
if (id == NULL) {
|
|
return NT_STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (key.dsize != SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE) {
|
|
return NT_STATUS_INTERNAL_DB_CORRUPTION;
|
|
}
|
|
|
|
*id = RIVAL(key.dptr, 0);
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
static struct db_record *smbXsrv_session_global_fetch_locked(
|
|
struct db_context *db,
|
|
uint32_t id,
|
|
TALLOC_CTX *mem_ctx)
|
|
{
|
|
TDB_DATA key;
|
|
uint8_t key_buf[SMBXSRV_SESSION_GLOBAL_TDB_KEY_SIZE];
|
|
struct db_record *rec = NULL;
|
|
|
|
key = smbXsrv_session_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_session_local_fetch_locked(
|
|
struct db_context *db,
|
|
uint32_t id,
|
|
TALLOC_CTX *mem_ctx)
|
|
{
|
|
TDB_DATA key;
|
|
uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
|
|
struct db_record *rec = NULL;
|
|
|
|
key = smbXsrv_session_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 void smbXsrv_session_close_loop(struct tevent_req *subreq);
|
|
|
|
static NTSTATUS smbXsrv_session_table_init(struct smbXsrv_connection *conn,
|
|
uint32_t lowest_id,
|
|
uint32_t highest_id,
|
|
uint32_t max_sessions)
|
|
{
|
|
struct smbXsrv_client *client = conn->client;
|
|
struct smbXsrv_session_table *table;
|
|
NTSTATUS status;
|
|
struct tevent_req *subreq;
|
|
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_sessions > max_range) {
|
|
return NT_STATUS_INTERNAL_ERROR;
|
|
}
|
|
|
|
table = talloc_zero(client, struct smbXsrv_session_table);
|
|
if (table == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
table->local.db_ctx = db_open_rbt(table);
|
|
if (table->local.db_ctx == NULL) {
|
|
TALLOC_FREE(table);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
table->local.lowest_id = lowest_id;
|
|
table->local.highest_id = highest_id;
|
|
table->local.max_sessions = max_sessions;
|
|
|
|
status = smbXsrv_session_global_init(client->msg_ctx);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
TALLOC_FREE(table);
|
|
return status;
|
|
}
|
|
|
|
table->global.db_ctx = smbXsrv_session_global_db_ctx;
|
|
|
|
subreq = messaging_read_send(table,
|
|
client->raw_ev_ctx,
|
|
client->msg_ctx,
|
|
MSG_SMBXSRV_SESSION_CLOSE);
|
|
if (subreq == NULL) {
|
|
TALLOC_FREE(table);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
tevent_req_set_callback(subreq, smbXsrv_session_close_loop, client);
|
|
|
|
client->session_table = table;
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
static void smbXsrv_session_close_shutdown_done(struct tevent_req *subreq);
|
|
|
|
static void smbXsrv_session_close_loop(struct tevent_req *subreq)
|
|
{
|
|
struct smbXsrv_client *client =
|
|
tevent_req_callback_data(subreq,
|
|
struct smbXsrv_client);
|
|
struct smbXsrv_session_table *table = client->session_table;
|
|
int ret;
|
|
struct messaging_rec *rec = NULL;
|
|
struct smbXsrv_session_closeB close_blob;
|
|
enum ndr_err_code ndr_err;
|
|
struct smbXsrv_session_close0 *close_info0 = NULL;
|
|
struct smbXsrv_session *session = NULL;
|
|
NTSTATUS status;
|
|
struct timeval tv = timeval_current();
|
|
NTTIME now = timeval_to_nttime(&tv);
|
|
|
|
ret = messaging_read_recv(subreq, talloc_tos(), &rec);
|
|
TALLOC_FREE(subreq);
|
|
if (ret != 0) {
|
|
goto next;
|
|
}
|
|
|
|
ndr_err = ndr_pull_struct_blob(&rec->buf, rec, &close_blob,
|
|
(ndr_pull_flags_fn_t)ndr_pull_smbXsrv_session_closeB);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
status = ndr_map_error2ntstatus(ndr_err);
|
|
DEBUG(1,("smbXsrv_session_close_loop: "
|
|
"ndr_pull_struct_blob - %s\n",
|
|
nt_errstr(status)));
|
|
goto next;
|
|
}
|
|
|
|
DEBUG(10,("smbXsrv_session_close_loop: MSG_SMBXSRV_SESSION_CLOSE\n"));
|
|
if (DEBUGLVL(10)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
}
|
|
|
|
if (close_blob.version != SMBXSRV_VERSION_0) {
|
|
DEBUG(0,("smbXsrv_session_close_loop: "
|
|
"ignore invalid version %u\n", close_blob.version));
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
goto next;
|
|
}
|
|
|
|
close_info0 = close_blob.info.info0;
|
|
if (close_info0 == NULL) {
|
|
DEBUG(0,("smbXsrv_session_close_loop: "
|
|
"ignore NULL info %u\n", close_blob.version));
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
goto next;
|
|
}
|
|
|
|
status = smb2srv_session_lookup_client(client,
|
|
close_info0->old_session_wire_id,
|
|
now, &session);
|
|
if (NT_STATUS_EQUAL(status, NT_STATUS_USER_SESSION_DELETED)) {
|
|
DEBUG(4,("smbXsrv_session_close_loop: "
|
|
"old_session_wire_id %llu not found\n",
|
|
(unsigned long long)close_info0->old_session_wire_id));
|
|
if (DEBUGLVL(4)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
}
|
|
goto next;
|
|
}
|
|
if (!NT_STATUS_IS_OK(status) &&
|
|
!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED) &&
|
|
!NT_STATUS_EQUAL(status, NT_STATUS_NETWORK_SESSION_EXPIRED)) {
|
|
DEBUG(1,("smbXsrv_session_close_loop: "
|
|
"old_session_wire_id %llu - %s\n",
|
|
(unsigned long long)close_info0->old_session_wire_id,
|
|
nt_errstr(status)));
|
|
if (DEBUGLVL(1)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
}
|
|
goto next;
|
|
}
|
|
|
|
if (session->global->session_global_id != close_info0->old_session_global_id) {
|
|
DEBUG(1,("smbXsrv_session_close_loop: "
|
|
"old_session_wire_id %llu - global %u != %u\n",
|
|
(unsigned long long)close_info0->old_session_wire_id,
|
|
session->global->session_global_id,
|
|
close_info0->old_session_global_id));
|
|
if (DEBUGLVL(1)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
}
|
|
goto next;
|
|
}
|
|
|
|
if (session->global->creation_time != close_info0->old_creation_time) {
|
|
DEBUG(1,("smbXsrv_session_close_loop: "
|
|
"old_session_wire_id %llu - "
|
|
"creation %s (%llu) != %s (%llu)\n",
|
|
(unsigned long long)close_info0->old_session_wire_id,
|
|
nt_time_string(rec, session->global->creation_time),
|
|
(unsigned long long)session->global->creation_time,
|
|
nt_time_string(rec, close_info0->old_creation_time),
|
|
(unsigned long long)close_info0->old_creation_time));
|
|
if (DEBUGLVL(1)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
}
|
|
goto next;
|
|
}
|
|
|
|
subreq = smb2srv_session_shutdown_send(session, client->raw_ev_ctx,
|
|
session, NULL);
|
|
if (subreq == NULL) {
|
|
status = NT_STATUS_NO_MEMORY;
|
|
DEBUG(0, ("smbXsrv_session_close_loop: "
|
|
"smb2srv_session_shutdown_send(%llu) failed: %s\n",
|
|
(unsigned long long)session->global->session_wire_id,
|
|
nt_errstr(status)));
|
|
if (DEBUGLVL(1)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_closeB, &close_blob);
|
|
}
|
|
goto next;
|
|
}
|
|
tevent_req_set_callback(subreq,
|
|
smbXsrv_session_close_shutdown_done,
|
|
session);
|
|
|
|
next:
|
|
TALLOC_FREE(rec);
|
|
|
|
subreq = messaging_read_send(table,
|
|
client->raw_ev_ctx,
|
|
client->msg_ctx,
|
|
MSG_SMBXSRV_SESSION_CLOSE);
|
|
if (subreq == NULL) {
|
|
const char *r;
|
|
r = "messaging_read_send(MSG_SMBXSRV_SESSION_CLOSE) failed";
|
|
exit_server_cleanly(r);
|
|
return;
|
|
}
|
|
tevent_req_set_callback(subreq, smbXsrv_session_close_loop, client);
|
|
}
|
|
|
|
static void smbXsrv_session_close_shutdown_done(struct tevent_req *subreq)
|
|
{
|
|
struct smbXsrv_session *session =
|
|
tevent_req_callback_data(subreq,
|
|
struct smbXsrv_session);
|
|
NTSTATUS status;
|
|
|
|
status = smb2srv_session_shutdown_recv(subreq);
|
|
TALLOC_FREE(subreq);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0, ("smbXsrv_session_close_loop: "
|
|
"smb2srv_session_shutdown_recv(%llu) failed: %s\n",
|
|
(unsigned long long)session->global->session_wire_id,
|
|
nt_errstr(status)));
|
|
}
|
|
|
|
status = smbXsrv_session_logoff(session);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0, ("smbXsrv_session_close_loop: "
|
|
"smbXsrv_session_logoff(%llu) failed: %s\n",
|
|
(unsigned long long)session->global->session_wire_id,
|
|
nt_errstr(status)));
|
|
}
|
|
|
|
TALLOC_FREE(session);
|
|
}
|
|
|
|
struct smb1srv_session_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_session_local_allocate_traverse(struct db_record *rec,
|
|
void *private_data)
|
|
{
|
|
struct smb1srv_session_local_allocate_state *state =
|
|
(struct smb1srv_session_local_allocate_state *)private_data;
|
|
TDB_DATA key = dbwrap_record_get_key(rec);
|
|
uint32_t id = 0;
|
|
NTSTATUS status;
|
|
|
|
status = smbXsrv_session_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_session_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_session_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_session_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_session_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_session_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_session_local_fetch_state {
|
|
struct smbXsrv_session *session;
|
|
NTSTATUS status;
|
|
};
|
|
|
|
static void smbXsrv_session_local_fetch_parser(TDB_DATA key, TDB_DATA data,
|
|
void *private_data)
|
|
{
|
|
struct smbXsrv_session_local_fetch_state *state =
|
|
(struct smbXsrv_session_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->session = talloc_get_type_abort(ptr, struct smbXsrv_session);
|
|
state->status = NT_STATUS_OK;
|
|
}
|
|
|
|
static NTSTATUS smbXsrv_session_local_lookup(struct smbXsrv_session_table *table,
|
|
/* conn: optional */
|
|
struct smbXsrv_connection *conn,
|
|
uint32_t session_local_id,
|
|
NTTIME now,
|
|
struct smbXsrv_session **_session)
|
|
{
|
|
struct smbXsrv_session_local_fetch_state state = {
|
|
.session = NULL,
|
|
.status = NT_STATUS_INTERNAL_ERROR,
|
|
};
|
|
uint8_t key_buf[SMBXSRV_SESSION_LOCAL_TDB_KEY_SIZE];
|
|
TDB_DATA key;
|
|
NTSTATUS status;
|
|
|
|
*_session = NULL;
|
|
|
|
if (session_local_id == 0) {
|
|
return NT_STATUS_USER_SESSION_DELETED;
|
|
}
|
|
|
|
if (table == NULL) {
|
|
/* this might happen before the end of negprot */
|
|
return NT_STATUS_USER_SESSION_DELETED;
|
|
}
|
|
|
|
if (table->local.db_ctx == NULL) {
|
|
return NT_STATUS_INTERNAL_ERROR;
|
|
}
|
|
|
|
key = smbXsrv_session_local_id_to_key(session_local_id, key_buf);
|
|
|
|
status = dbwrap_parse_record(table->local.db_ctx, key,
|
|
smbXsrv_session_local_fetch_parser,
|
|
&state);
|
|
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
|
|
return NT_STATUS_USER_SESSION_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.session->status, NT_STATUS_USER_SESSION_DELETED)) {
|
|
return NT_STATUS_USER_SESSION_DELETED;
|
|
}
|
|
|
|
/*
|
|
* If a connection is specified check if the session is
|
|
* valid on the channel.
|
|
*/
|
|
if (conn != NULL) {
|
|
struct smbXsrv_channel_global0 *c = NULL;
|
|
|
|
status = smbXsrv_session_find_channel(state.session, conn, &c);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
return status;
|
|
}
|
|
}
|
|
|
|
state.session->idle_time = now;
|
|
|
|
if (!NT_STATUS_IS_OK(state.session->status)) {
|
|
*_session = state.session;
|
|
return state.session->status;
|
|
}
|
|
|
|
if (now > state.session->global->expiration_time) {
|
|
state.session->status = NT_STATUS_NETWORK_SESSION_EXPIRED;
|
|
}
|
|
|
|
*_session = state.session;
|
|
return state.session->status;
|
|
}
|
|
|
|
static int smbXsrv_session_global_destructor(struct smbXsrv_session_global0 *global)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void smbXsrv_session_global_verify_record(struct db_record *db_rec,
|
|
bool *is_free,
|
|
bool *was_free,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct smbXsrv_session_global0 **_g);
|
|
|
|
static NTSTATUS smbXsrv_session_global_allocate(struct db_context *db,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct smbXsrv_session_global0 **_global)
|
|
{
|
|
uint32_t i;
|
|
struct smbXsrv_session_global0 *global = NULL;
|
|
uint32_t last_free = 0;
|
|
const uint32_t min_tries = 3;
|
|
|
|
*_global = NULL;
|
|
|
|
global = talloc_zero(mem_ctx, struct smbXsrv_session_global0);
|
|
if (global == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
talloc_set_destructor(global, smbXsrv_session_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_session_global_fetch_locked(db, id,
|
|
mem_ctx);
|
|
if (global->db_rec == NULL) {
|
|
talloc_free(global);
|
|
return NT_STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
smbXsrv_session_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->session_global_id = id;
|
|
|
|
*_global = global;
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
/* should not be reached */
|
|
talloc_free(global);
|
|
return NT_STATUS_INTERNAL_ERROR;
|
|
}
|
|
|
|
static void smbXsrv_session_global_verify_record(struct db_record *db_rec,
|
|
bool *is_free,
|
|
bool *was_free,
|
|
TALLOC_CTX *mem_ctx,
|
|
struct smbXsrv_session_global0 **_g)
|
|
{
|
|
TDB_DATA key;
|
|
TDB_DATA val;
|
|
DATA_BLOB blob;
|
|
struct smbXsrv_session_globalB global_blob;
|
|
enum ndr_err_code ndr_err;
|
|
struct smbXsrv_session_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_session_globalB);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
|
|
DEBUG(1,("smbXsrv_session_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);
|
|
*is_free = true;
|
|
if (was_free) {
|
|
*was_free = true;
|
|
}
|
|
return;
|
|
}
|
|
|
|
DEBUG(10,("smbXsrv_session_global_verify_record\n"));
|
|
if (DEBUGLVL(10)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_globalB, &global_blob);
|
|
}
|
|
|
|
if (global_blob.version != SMBXSRV_VERSION_0) {
|
|
DEBUG(0,("smbXsrv_session_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_session_globalB, &global_blob);
|
|
TALLOC_FREE(frame);
|
|
*is_free = true;
|
|
if (was_free) {
|
|
*was_free = true;
|
|
}
|
|
return;
|
|
}
|
|
|
|
global = global_blob.info.info0;
|
|
|
|
exists = serverid_exists(&global->channels[0].server_id);
|
|
if (!exists) {
|
|
struct server_id_buf idbuf;
|
|
DEBUG(2,("smbXsrv_session_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->channels[0].server_id,
|
|
&idbuf)));
|
|
if (DEBUGLVL(2)) {
|
|
NDR_PRINT_DEBUG(smbXsrv_session_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_session_global_store(struct smbXsrv_session_global0 *global)
|
|
{
|
|
struct smbXsrv_session_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_session_globalB);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
status = ndr_map_error2ntstatus(ndr_err);
|
|
DEBUG(1,("smbXsrv_session_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_session_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_session_global_store: key '%s' stored\n",
|
|
hex_encode_talloc(global->db_rec, key.dptr, key.dsize)));
|
|
NDR_PRINT_DEBUG(smbXsrv_session_globalB, &global_blob);
|
|
}
|
|
|
|
TALLOC_FREE(global->db_rec);
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
struct smb2srv_session_close_previous_state {
|
|
struct tevent_context *ev;
|
|
struct smbXsrv_connection *connection;
|
|
struct dom_sid *current_sid;
|
|
uint64_t previous_session_id;
|
|
uint64_t current_session_id;
|
|
struct db_record *db_rec;
|
|
};
|
|
|
|
static void smb2srv_session_close_previous_check(struct tevent_req *req);
|
|
static void smb2srv_session_close_previous_modified(struct tevent_req *subreq);
|
|
|
|
struct tevent_req *smb2srv_session_close_previous_send(TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
struct smbXsrv_connection *conn,
|
|
struct auth_session_info *session_info,
|
|
uint64_t previous_session_id,
|
|
uint64_t current_session_id)
|
|
{
|
|
struct tevent_req *req;
|
|
struct smb2srv_session_close_previous_state *state;
|
|
uint32_t global_id = previous_session_id & UINT32_MAX;
|
|
uint64_t global_zeros = previous_session_id & 0xFFFFFFFF00000000LLU;
|
|
struct smbXsrv_session_table *table = conn->client->session_table;
|
|
struct security_token *current_token = NULL;
|
|
|
|
req = tevent_req_create(mem_ctx, &state,
|
|
struct smb2srv_session_close_previous_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
state->ev = ev;
|
|
state->connection = conn;
|
|
state->previous_session_id = previous_session_id;
|
|
state->current_session_id = current_session_id;
|
|
|
|
if (global_zeros != 0) {
|
|
tevent_req_done(req);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
if (session_info == NULL) {
|
|
tevent_req_done(req);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
current_token = session_info->security_token;
|
|
|
|
if (current_token->num_sids > PRIMARY_USER_SID_INDEX) {
|
|
state->current_sid = ¤t_token->sids[PRIMARY_USER_SID_INDEX];
|
|
}
|
|
|
|
if (state->current_sid == NULL) {
|
|
tevent_req_done(req);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
if (!security_token_has_nt_authenticated_users(current_token)) {
|
|
/* TODO */
|
|
tevent_req_done(req);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
state->db_rec = smbXsrv_session_global_fetch_locked(
|
|
table->global.db_ctx,
|
|
global_id,
|
|
state /* TALLOC_CTX */);
|
|
if (state->db_rec == NULL) {
|
|
tevent_req_nterror(req, NT_STATUS_UNSUCCESSFUL);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
smb2srv_session_close_previous_check(req);
|
|
if (!tevent_req_is_in_progress(req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
return req;
|
|
}
|
|
|
|
static void smb2srv_session_close_previous_check(struct tevent_req *req)
|
|
{
|
|
struct smb2srv_session_close_previous_state *state =
|
|
tevent_req_data(req,
|
|
struct smb2srv_session_close_previous_state);
|
|
struct smbXsrv_connection *conn = state->connection;
|
|
DATA_BLOB blob;
|
|
struct security_token *previous_token = NULL;
|
|
struct smbXsrv_session_global0 *global = NULL;
|
|
enum ndr_err_code ndr_err;
|
|
struct smbXsrv_session_close0 close_info0;
|
|
struct smbXsrv_session_closeB close_blob;
|
|
struct tevent_req *subreq = NULL;
|
|
NTSTATUS status;
|
|
bool is_free = false;
|
|
|
|
smbXsrv_session_global_verify_record(state->db_rec,
|
|
&is_free,
|
|
NULL,
|
|
state,
|
|
&global);
|
|
|
|
if (is_free) {
|
|
TALLOC_FREE(state->db_rec);
|
|
tevent_req_done(req);
|
|
return;
|
|
}
|
|
|
|
if (global->auth_session_info == NULL) {
|
|
TALLOC_FREE(state->db_rec);
|
|
tevent_req_done(req);
|
|
return;
|
|
}
|
|
|
|
previous_token = global->auth_session_info->security_token;
|
|
|
|
if (!security_token_is_sid(previous_token, state->current_sid)) {
|
|
TALLOC_FREE(state->db_rec);
|
|
tevent_req_done(req);
|
|
return;
|
|
}
|
|
|
|
subreq = dbwrap_watched_watch_send(state, state->ev, state->db_rec,
|
|
(struct server_id){0});
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
TALLOC_FREE(state->db_rec);
|
|
return;
|
|
}
|
|
tevent_req_set_callback(subreq,
|
|
smb2srv_session_close_previous_modified,
|
|
req);
|
|
|
|
close_info0.old_session_global_id = global->session_global_id;
|
|
close_info0.old_session_wire_id = global->session_wire_id;
|
|
close_info0.old_creation_time = global->creation_time;
|
|
close_info0.new_session_wire_id = state->current_session_id;
|
|
|
|
ZERO_STRUCT(close_blob);
|
|
close_blob.version = smbXsrv_version_global_current();
|
|
close_blob.info.info0 = &close_info0;
|
|
|
|
ndr_err = ndr_push_struct_blob(&blob, state, &close_blob,
|
|
(ndr_push_flags_fn_t)ndr_push_smbXsrv_session_closeB);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
TALLOC_FREE(state->db_rec);
|
|
status = ndr_map_error2ntstatus(ndr_err);
|
|
DEBUG(1,("smb2srv_session_close_previous_check: "
|
|
"old_session[%llu] new_session[%llu] ndr_push - %s\n",
|
|
(unsigned long long)close_info0.old_session_wire_id,
|
|
(unsigned long long)close_info0.new_session_wire_id,
|
|
nt_errstr(status)));
|
|
tevent_req_nterror(req, status);
|
|
return;
|
|
}
|
|
|
|
status = messaging_send(conn->client->msg_ctx,
|
|
global->channels[0].server_id,
|
|
MSG_SMBXSRV_SESSION_CLOSE, &blob);
|
|
TALLOC_FREE(state->db_rec);
|
|
if (tevent_req_nterror(req, status)) {
|
|
return;
|
|
}
|
|
|
|
TALLOC_FREE(global);
|
|
return;
|
|
}
|
|
|
|
static void smb2srv_session_close_previous_modified(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req =
|
|
tevent_req_callback_data(subreq,
|
|
struct tevent_req);
|
|
struct smb2srv_session_close_previous_state *state =
|
|
tevent_req_data(req,
|
|
struct smb2srv_session_close_previous_state);
|
|
uint32_t global_id;
|
|
NTSTATUS status;
|
|
|
|
status = dbwrap_watched_watch_recv(subreq, NULL, NULL);
|
|
TALLOC_FREE(subreq);
|
|
if (tevent_req_nterror(req, status)) {
|
|
return;
|
|
}
|
|
|
|
global_id = state->previous_session_id & UINT32_MAX;
|
|
|
|
state->db_rec = smbXsrv_session_global_fetch_locked(
|
|
state->connection->client->session_table->global.db_ctx,
|
|
global_id, state /* TALLOC_CTX */);
|
|
|
|
smb2srv_session_close_previous_check(req);
|
|
}
|
|
|
|
NTSTATUS smb2srv_session_close_previous_recv(struct tevent_req *req)
|
|
{
|
|
NTSTATUS status;
|
|
|
|
if (tevent_req_is_nterror(req, &status)) {
|
|
tevent_req_received(req);
|
|
return status;
|
|
}
|
|
|
|
tevent_req_received(req);
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
static NTSTATUS smbXsrv_session_clear_and_logoff(struct smbXsrv_session *session)
|
|
{
|
|
NTSTATUS status;
|
|
struct smbXsrv_connection *xconn = NULL;
|
|
|
|
if (session->client != NULL) {
|
|
xconn = session->client->connections;
|
|
}
|
|
|
|
for (; xconn != NULL; xconn = xconn->next) {
|
|
struct smbd_smb2_request *preq;
|
|
|
|
for (preq = xconn->smb2.requests; preq != NULL; preq = preq->next) {
|
|
if (preq->session != session) {
|
|
continue;
|
|
}
|
|
|
|
preq->session = NULL;
|
|
/*
|
|
* If we no longer have a session we can't
|
|
* sign or encrypt replies.
|
|
*/
|
|
preq->do_signing = false;
|
|
preq->do_encryption = false;
|
|
preq->preauth = NULL;
|
|
}
|
|
}
|
|
|
|
status = smbXsrv_session_logoff(session);
|
|
return status;
|
|
}
|
|
|
|
static int smbXsrv_session_destructor(struct smbXsrv_session *session)
|
|
{
|
|
NTSTATUS status;
|
|
|
|
status = smbXsrv_session_clear_and_logoff(session);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0, ("smbXsrv_session_destructor: "
|
|
"smbXsrv_session_logoff() failed: %s\n",
|
|
nt_errstr(status)));
|
|
}
|
|
|
|
TALLOC_FREE(session->global);
|
|
|
|
return 0;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_create(struct smbXsrv_connection *conn,
|
|
NTTIME now,
|
|
struct smbXsrv_session **_session)
|
|
{
|
|
struct smbXsrv_session_table *table = conn->client->session_table;
|
|
struct db_record *local_rec = NULL;
|
|
struct smbXsrv_session *session = NULL;
|
|
void *ptr = NULL;
|
|
TDB_DATA val;
|
|
struct smbXsrv_session_global0 *global = NULL;
|
|
struct smbXsrv_channel_global0 *channel = NULL;
|
|
NTSTATUS status;
|
|
|
|
if (table->local.num_sessions >= table->local.max_sessions) {
|
|
return NT_STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
session = talloc_zero(table, struct smbXsrv_session);
|
|
if (session == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
session->table = table;
|
|
session->idle_time = now;
|
|
session->status = NT_STATUS_MORE_PROCESSING_REQUIRED;
|
|
session->client = conn->client;
|
|
|
|
status = smbXsrv_session_global_allocate(table->global.db_ctx,
|
|
session,
|
|
&global);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
TALLOC_FREE(session);
|
|
return status;
|
|
}
|
|
session->global = global;
|
|
|
|
if (conn->protocol >= PROTOCOL_SMB2_02) {
|
|
uint64_t id = global->session_global_id;
|
|
|
|
global->connection_dialect = conn->smb2.server.dialect;
|
|
|
|
global->session_wire_id = id;
|
|
|
|
status = smb2srv_tcon_table_init(session);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
TALLOC_FREE(session);
|
|
return status;
|
|
}
|
|
|
|
session->local_id = global->session_global_id;
|
|
|
|
local_rec = smbXsrv_session_local_fetch_locked(
|
|
table->local.db_ctx,
|
|
session->local_id,
|
|
session /* TALLOC_CTX */);
|
|
if (local_rec == NULL) {
|
|
TALLOC_FREE(session);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
|
|
val = dbwrap_record_get_value(local_rec);
|
|
if (val.dsize != 0) {
|
|
TALLOC_FREE(session);
|
|
return NT_STATUS_INTERNAL_DB_CORRUPTION;
|
|
}
|
|
} else {
|
|
|
|
status = smb1srv_session_local_allocate_id(table->local.db_ctx,
|
|
table->local.lowest_id,
|
|
table->local.highest_id,
|
|
session,
|
|
&local_rec,
|
|
&session->local_id);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
TALLOC_FREE(session);
|
|
return status;
|
|
}
|
|
|
|
global->session_wire_id = session->local_id;
|
|
}
|
|
|
|
global->creation_time = now;
|
|
global->expiration_time = GENSEC_EXPIRE_TIME_INFINITY;
|
|
|
|
status = smbXsrv_session_add_channel(session, conn, &channel);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
TALLOC_FREE(session);
|
|
return status;
|
|
}
|
|
|
|
ptr = session;
|
|
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(session);
|
|
return status;
|
|
}
|
|
table->local.num_sessions += 1;
|
|
|
|
talloc_set_destructor(session, smbXsrv_session_destructor);
|
|
|
|
status = smbXsrv_session_global_store(global);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0,("smbXsrv_session_create: "
|
|
"global_id (0x%08x) store failed - %s\n",
|
|
session->global->session_global_id,
|
|
nt_errstr(status)));
|
|
TALLOC_FREE(session);
|
|
return status;
|
|
}
|
|
|
|
if (DEBUGLVL(10)) {
|
|
struct smbXsrv_sessionB session_blob;
|
|
|
|
ZERO_STRUCT(session_blob);
|
|
session_blob.version = SMBXSRV_VERSION_0;
|
|
session_blob.info.info0 = session;
|
|
|
|
DEBUG(10,("smbXsrv_session_create: global_id (0x%08x) stored\n",
|
|
session->global->session_global_id));
|
|
NDR_PRINT_DEBUG(smbXsrv_sessionB, &session_blob);
|
|
}
|
|
|
|
*_session = session;
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_add_channel(struct smbXsrv_session *session,
|
|
struct smbXsrv_connection *conn,
|
|
struct smbXsrv_channel_global0 **_c)
|
|
{
|
|
struct smbXsrv_session_global0 *global = session->global;
|
|
struct smbXsrv_channel_global0 *c = NULL;
|
|
|
|
if (global->num_channels > 31) {
|
|
/*
|
|
* Windows 2012 and 2012R2 allow up to 32 channels
|
|
*/
|
|
return NT_STATUS_INSUFFICIENT_RESOURCES;
|
|
}
|
|
|
|
c = talloc_realloc(global,
|
|
global->channels,
|
|
struct smbXsrv_channel_global0,
|
|
global->num_channels + 1);
|
|
if (c == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
global->channels = c;
|
|
|
|
c = &global->channels[global->num_channels];
|
|
ZERO_STRUCTP(c);
|
|
|
|
c->server_id = messaging_server_id(conn->client->msg_ctx);
|
|
c->local_address = tsocket_address_string(conn->local_address,
|
|
global->channels);
|
|
if (c->local_address == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
c->remote_address = tsocket_address_string(conn->remote_address,
|
|
global->channels);
|
|
if (c->remote_address == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
c->remote_name = talloc_strdup(global->channels,
|
|
conn->remote_hostname);
|
|
if (c->remote_name == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
c->connection = conn;
|
|
|
|
global->num_channels += 1;
|
|
|
|
*_c = c;
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_update(struct smbXsrv_session *session)
|
|
{
|
|
struct smbXsrv_session_table *table = session->table;
|
|
NTSTATUS status;
|
|
|
|
if (session->global->db_rec != NULL) {
|
|
DEBUG(0, ("smbXsrv_session_update(0x%08x): "
|
|
"Called with db_rec != NULL'\n",
|
|
session->global->session_global_id));
|
|
return NT_STATUS_INTERNAL_ERROR;
|
|
}
|
|
|
|
session->global->db_rec = smbXsrv_session_global_fetch_locked(
|
|
table->global.db_ctx,
|
|
session->global->session_global_id,
|
|
session->global /* TALLOC_CTX */);
|
|
if (session->global->db_rec == NULL) {
|
|
return NT_STATUS_INTERNAL_DB_ERROR;
|
|
}
|
|
|
|
status = smbXsrv_session_global_store(session->global);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0,("smbXsrv_session_update: "
|
|
"global_id (0x%08x) store failed - %s\n",
|
|
session->global->session_global_id,
|
|
nt_errstr(status)));
|
|
return status;
|
|
}
|
|
|
|
if (DEBUGLVL(10)) {
|
|
struct smbXsrv_sessionB session_blob;
|
|
|
|
ZERO_STRUCT(session_blob);
|
|
session_blob.version = SMBXSRV_VERSION_0;
|
|
session_blob.info.info0 = session;
|
|
|
|
DEBUG(10,("smbXsrv_session_update: global_id (0x%08x) stored\n",
|
|
session->global->session_global_id));
|
|
NDR_PRINT_DEBUG(smbXsrv_sessionB, &session_blob);
|
|
}
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_find_channel(const struct smbXsrv_session *session,
|
|
const struct smbXsrv_connection *conn,
|
|
struct smbXsrv_channel_global0 **_c)
|
|
{
|
|
uint32_t i;
|
|
|
|
for (i=0; i < session->global->num_channels; i++) {
|
|
struct smbXsrv_channel_global0 *c = &session->global->channels[i];
|
|
|
|
if (c->connection == conn) {
|
|
*_c = c;
|
|
return NT_STATUS_OK;
|
|
}
|
|
}
|
|
|
|
return NT_STATUS_USER_SESSION_DELETED;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_find_auth(const struct smbXsrv_session *session,
|
|
const struct smbXsrv_connection *conn,
|
|
NTTIME now,
|
|
struct smbXsrv_session_auth0 **_a)
|
|
{
|
|
struct smbXsrv_session_auth0 *a;
|
|
|
|
for (a = session->pending_auth; a != NULL; a = a->next) {
|
|
if (a->connection == conn) {
|
|
if (now != 0) {
|
|
a->idle_time = now;
|
|
}
|
|
*_a = a;
|
|
return NT_STATUS_OK;
|
|
}
|
|
}
|
|
|
|
return NT_STATUS_USER_SESSION_DELETED;
|
|
}
|
|
|
|
static int smbXsrv_session_auth0_destructor(struct smbXsrv_session_auth0 *a)
|
|
{
|
|
if (a->session == NULL) {
|
|
return 0;
|
|
}
|
|
|
|
DLIST_REMOVE(a->session->pending_auth, a);
|
|
a->session = NULL;
|
|
return 0;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_create_auth(struct smbXsrv_session *session,
|
|
struct smbXsrv_connection *conn,
|
|
NTTIME now,
|
|
uint8_t in_flags,
|
|
uint8_t in_security_mode,
|
|
struct smbXsrv_session_auth0 **_a)
|
|
{
|
|
struct smbXsrv_session_auth0 *a;
|
|
NTSTATUS status;
|
|
|
|
status = smbXsrv_session_find_auth(session, conn, 0, &a);
|
|
if (NT_STATUS_IS_OK(status)) {
|
|
return NT_STATUS_INTERNAL_ERROR;
|
|
}
|
|
|
|
a = talloc_zero(session, struct smbXsrv_session_auth0);
|
|
if (a == NULL) {
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
a->session = session;
|
|
a->connection = conn;
|
|
a->in_flags = in_flags;
|
|
a->in_security_mode = in_security_mode;
|
|
a->creation_time = now;
|
|
a->idle_time = now;
|
|
|
|
if (conn->protocol >= PROTOCOL_SMB3_10) {
|
|
a->preauth = talloc(a, struct smbXsrv_preauth);
|
|
if (a->preauth == NULL) {
|
|
TALLOC_FREE(session);
|
|
return NT_STATUS_NO_MEMORY;
|
|
}
|
|
*a->preauth = conn->smb2.preauth;
|
|
}
|
|
|
|
talloc_set_destructor(a, smbXsrv_session_auth0_destructor);
|
|
DLIST_ADD_END(session->pending_auth, a);
|
|
|
|
*_a = a;
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
struct smb2srv_session_shutdown_state {
|
|
struct tevent_queue *wait_queue;
|
|
};
|
|
|
|
static void smb2srv_session_shutdown_wait_done(struct tevent_req *subreq);
|
|
|
|
struct tevent_req *smb2srv_session_shutdown_send(TALLOC_CTX *mem_ctx,
|
|
struct tevent_context *ev,
|
|
struct smbXsrv_session *session,
|
|
struct smbd_smb2_request *current_req)
|
|
{
|
|
struct tevent_req *req;
|
|
struct smb2srv_session_shutdown_state *state;
|
|
struct tevent_req *subreq;
|
|
struct smbXsrv_connection *xconn = NULL;
|
|
size_t len = 0;
|
|
|
|
/*
|
|
* Make sure that no new request will be able to use this session.
|
|
*/
|
|
session->status = NT_STATUS_USER_SESSION_DELETED;
|
|
|
|
req = tevent_req_create(mem_ctx, &state,
|
|
struct smb2srv_session_shutdown_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
state->wait_queue = tevent_queue_create(state, "smb2srv_session_shutdown_queue");
|
|
if (tevent_req_nomem(state->wait_queue, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
for (xconn = session->client->connections; xconn != NULL; xconn = xconn->next) {
|
|
struct smbd_smb2_request *preq;
|
|
|
|
for (preq = xconn->smb2.requests; preq != NULL; preq = preq->next) {
|
|
if (preq == current_req) {
|
|
/* Can't cancel current request. */
|
|
continue;
|
|
}
|
|
if (preq->session != session) {
|
|
/* Request on different session. */
|
|
continue;
|
|
}
|
|
|
|
if (!NT_STATUS_IS_OK(xconn->transport.status)) {
|
|
preq->session = NULL;
|
|
/*
|
|
* If we no longer have a session we can't
|
|
* sign or encrypt replies.
|
|
*/
|
|
preq->do_signing = false;
|
|
preq->do_encryption = false;
|
|
preq->preauth = NULL;
|
|
|
|
if (preq->subreq != NULL) {
|
|
tevent_req_cancel(preq->subreq);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Never cancel anything in a compound
|
|
* request. Way too hard to deal with
|
|
* the result.
|
|
*/
|
|
if (!preq->compound_related && preq->subreq != NULL) {
|
|
tevent_req_cancel(preq->subreq);
|
|
}
|
|
|
|
/*
|
|
* Now wait until the request is finished.
|
|
*
|
|
* We don't set a callback, as we just want to block the
|
|
* wait queue and the talloc_free() of the request will
|
|
* remove the item from the wait queue.
|
|
*/
|
|
subreq = tevent_queue_wait_send(preq, ev, state->wait_queue);
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
}
|
|
}
|
|
|
|
len = tevent_queue_length(state->wait_queue);
|
|
if (len == 0) {
|
|
tevent_req_done(req);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
/*
|
|
* Now we add our own waiter to the end of the queue,
|
|
* this way we get notified when all pending requests are finished
|
|
* and send to the socket.
|
|
*/
|
|
subreq = tevent_queue_wait_send(state, ev, state->wait_queue);
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
tevent_req_set_callback(subreq, smb2srv_session_shutdown_wait_done, req);
|
|
|
|
return req;
|
|
}
|
|
|
|
static void smb2srv_session_shutdown_wait_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req =
|
|
tevent_req_callback_data(subreq,
|
|
struct tevent_req);
|
|
|
|
tevent_queue_wait_recv(subreq);
|
|
TALLOC_FREE(subreq);
|
|
|
|
tevent_req_done(req);
|
|
}
|
|
|
|
NTSTATUS smb2srv_session_shutdown_recv(struct tevent_req *req)
|
|
{
|
|
return tevent_req_simple_recv_ntstatus(req);
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_logoff(struct smbXsrv_session *session)
|
|
{
|
|
struct smbXsrv_session_table *table;
|
|
struct db_record *local_rec = NULL;
|
|
struct db_record *global_rec = NULL;
|
|
struct smbd_server_connection *sconn = NULL;
|
|
NTSTATUS status;
|
|
NTSTATUS error = NT_STATUS_OK;
|
|
|
|
if (session->table == NULL) {
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
table = session->table;
|
|
session->table = NULL;
|
|
|
|
sconn = session->client->sconn;
|
|
session->client = NULL;
|
|
session->status = NT_STATUS_USER_SESSION_DELETED;
|
|
|
|
if (session->compat) {
|
|
/*
|
|
* For SMB2 this is a bit redundant as files are also close
|
|
* below via smb2srv_tcon_disconnect_all() -> ... ->
|
|
* smbXsrv_tcon_disconnect() -> close_cnum() ->
|
|
* file_close_conn().
|
|
*/
|
|
file_close_user(sconn, session->compat->vuid);
|
|
}
|
|
|
|
if (session->tcon_table != NULL) {
|
|
/*
|
|
* Note: We only have a tcon_table for SMB2.
|
|
*/
|
|
status = smb2srv_tcon_disconnect_all(session);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0, ("smbXsrv_session_logoff(0x%08x): "
|
|
"smb2srv_tcon_disconnect_all() failed: %s\n",
|
|
session->global->session_global_id,
|
|
nt_errstr(status)));
|
|
error = status;
|
|
}
|
|
}
|
|
|
|
if (session->compat) {
|
|
invalidate_vuid(sconn, session->compat->vuid);
|
|
session->compat = NULL;
|
|
}
|
|
|
|
global_rec = session->global->db_rec;
|
|
session->global->db_rec = NULL;
|
|
if (global_rec == NULL) {
|
|
global_rec = smbXsrv_session_global_fetch_locked(
|
|
table->global.db_ctx,
|
|
session->global->session_global_id,
|
|
session->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_session_logoff(0x%08x): "
|
|
"failed to delete global key '%s': %s\n",
|
|
session->global->session_global_id,
|
|
hex_encode_talloc(global_rec, key.dptr,
|
|
key.dsize),
|
|
nt_errstr(status)));
|
|
error = status;
|
|
}
|
|
}
|
|
TALLOC_FREE(global_rec);
|
|
|
|
local_rec = session->db_rec;
|
|
if (local_rec == NULL) {
|
|
local_rec = smbXsrv_session_local_fetch_locked(
|
|
table->local.db_ctx,
|
|
session->local_id,
|
|
session /* 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_session_logoff(0x%08x): "
|
|
"failed to delete local key '%s': %s\n",
|
|
session->global->session_global_id,
|
|
hex_encode_talloc(local_rec, key.dptr,
|
|
key.dsize),
|
|
nt_errstr(status)));
|
|
error = status;
|
|
}
|
|
table->local.num_sessions -= 1;
|
|
}
|
|
if (session->db_rec == NULL) {
|
|
TALLOC_FREE(local_rec);
|
|
}
|
|
session->db_rec = NULL;
|
|
|
|
return error;
|
|
}
|
|
|
|
struct smbXsrv_session_logoff_all_state {
|
|
NTSTATUS first_status;
|
|
int errors;
|
|
};
|
|
|
|
static int smbXsrv_session_logoff_all_callback(struct db_record *local_rec,
|
|
void *private_data);
|
|
|
|
NTSTATUS smbXsrv_session_logoff_all(struct smbXsrv_client *client)
|
|
{
|
|
struct smbXsrv_session_table *table = client->session_table;
|
|
struct smbXsrv_session_logoff_all_state state;
|
|
NTSTATUS status;
|
|
int count = 0;
|
|
|
|
if (table == NULL) {
|
|
DEBUG(10, ("smbXsrv_session_logoff_all: "
|
|
"empty session_table, nothing to do.\n"));
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
ZERO_STRUCT(state);
|
|
|
|
status = dbwrap_traverse(table->local.db_ctx,
|
|
smbXsrv_session_logoff_all_callback,
|
|
&state, &count);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
DEBUG(0, ("smbXsrv_session_logoff_all: "
|
|
"dbwrap_traverse() failed: %s\n",
|
|
nt_errstr(status)));
|
|
return status;
|
|
}
|
|
|
|
if (!NT_STATUS_IS_OK(state.first_status)) {
|
|
DEBUG(0, ("smbXsrv_session_logoff_all: "
|
|
"count[%d] errors[%d] first[%s]\n",
|
|
count, state.errors,
|
|
nt_errstr(state.first_status)));
|
|
return state.first_status;
|
|
}
|
|
|
|
return NT_STATUS_OK;
|
|
}
|
|
|
|
static int smbXsrv_session_logoff_all_callback(struct db_record *local_rec,
|
|
void *private_data)
|
|
{
|
|
struct smbXsrv_session_logoff_all_state *state =
|
|
(struct smbXsrv_session_logoff_all_state *)private_data;
|
|
TDB_DATA val;
|
|
void *ptr = NULL;
|
|
struct smbXsrv_session *session = NULL;
|
|
NTSTATUS status;
|
|
|
|
val = dbwrap_record_get_value(local_rec);
|
|
if (val.dsize != sizeof(ptr)) {
|
|
status = NT_STATUS_INTERNAL_ERROR;
|
|
if (NT_STATUS_IS_OK(state->first_status)) {
|
|
state->first_status = status;
|
|
}
|
|
state->errors++;
|
|
return 0;
|
|
}
|
|
|
|
memcpy(&ptr, val.dptr, val.dsize);
|
|
session = talloc_get_type_abort(ptr, struct smbXsrv_session);
|
|
|
|
session->db_rec = local_rec;
|
|
|
|
status = smbXsrv_session_clear_and_logoff(session);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
if (NT_STATUS_IS_OK(state->first_status)) {
|
|
state->first_status = status;
|
|
}
|
|
state->errors++;
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
NTSTATUS smb1srv_session_table_init(struct smbXsrv_connection *conn)
|
|
{
|
|
/*
|
|
* Allow a range from 1..65534 with 65534 values.
|
|
*/
|
|
return smbXsrv_session_table_init(conn, 1, UINT16_MAX - 1,
|
|
UINT16_MAX - 1);
|
|
}
|
|
|
|
NTSTATUS smb1srv_session_lookup(struct smbXsrv_connection *conn,
|
|
uint16_t vuid, NTTIME now,
|
|
struct smbXsrv_session **session)
|
|
{
|
|
struct smbXsrv_session_table *table = conn->client->session_table;
|
|
uint32_t local_id = vuid;
|
|
|
|
return smbXsrv_session_local_lookup(table, conn, local_id, now,
|
|
session);
|
|
}
|
|
|
|
NTSTATUS smb2srv_session_table_init(struct smbXsrv_connection *conn)
|
|
{
|
|
/*
|
|
* Allow a range from 1..4294967294 with 65534 (same as SMB1) values.
|
|
*/
|
|
return smbXsrv_session_table_init(conn, 1, UINT32_MAX - 1,
|
|
UINT16_MAX - 1);
|
|
}
|
|
|
|
static NTSTATUS smb2srv_session_lookup_raw(struct smbXsrv_session_table *table,
|
|
/* conn: optional */
|
|
struct smbXsrv_connection *conn,
|
|
uint64_t session_id, NTTIME now,
|
|
struct smbXsrv_session **session)
|
|
{
|
|
uint32_t local_id = session_id & UINT32_MAX;
|
|
uint64_t local_zeros = session_id & 0xFFFFFFFF00000000LLU;
|
|
|
|
if (local_zeros != 0) {
|
|
return NT_STATUS_USER_SESSION_DELETED;
|
|
}
|
|
|
|
return smbXsrv_session_local_lookup(table, conn, local_id, now,
|
|
session);
|
|
}
|
|
|
|
NTSTATUS smb2srv_session_lookup_conn(struct smbXsrv_connection *conn,
|
|
uint64_t session_id, NTTIME now,
|
|
struct smbXsrv_session **session)
|
|
{
|
|
struct smbXsrv_session_table *table = conn->client->session_table;
|
|
return smb2srv_session_lookup_raw(table, conn, session_id, now,
|
|
session);
|
|
}
|
|
|
|
NTSTATUS smb2srv_session_lookup_client(struct smbXsrv_client *client,
|
|
uint64_t session_id, NTTIME now,
|
|
struct smbXsrv_session **session)
|
|
{
|
|
struct smbXsrv_session_table *table = client->session_table;
|
|
return smb2srv_session_lookup_raw(table, NULL, session_id, now,
|
|
session);
|
|
}
|
|
|
|
struct smbXsrv_session_global_traverse_state {
|
|
int (*fn)(struct smbXsrv_session_global0 *, void *);
|
|
void *private_data;
|
|
};
|
|
|
|
static int smbXsrv_session_global_traverse_fn(struct db_record *rec, void *data)
|
|
{
|
|
int ret = -1;
|
|
struct smbXsrv_session_global_traverse_state *state =
|
|
(struct smbXsrv_session_global_traverse_state*)data;
|
|
TDB_DATA key = dbwrap_record_get_key(rec);
|
|
TDB_DATA val = dbwrap_record_get_value(rec);
|
|
DATA_BLOB blob = data_blob_const(val.dptr, val.dsize);
|
|
struct smbXsrv_session_globalB global_blob;
|
|
enum ndr_err_code ndr_err;
|
|
TALLOC_CTX *frame = talloc_stackframe();
|
|
|
|
ndr_err = ndr_pull_struct_blob(&blob, frame, &global_blob,
|
|
(ndr_pull_flags_fn_t)ndr_pull_smbXsrv_session_globalB);
|
|
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
|
|
DEBUG(1,("Invalid record in smbXsrv_session_global.tdb:"
|
|
"key '%s' ndr_pull_struct_blob - %s\n",
|
|
hex_encode_talloc(frame, key.dptr, key.dsize),
|
|
ndr_errstr(ndr_err)));
|
|
goto done;
|
|
}
|
|
|
|
if (global_blob.version != SMBXSRV_VERSION_0) {
|
|
DEBUG(1,("Invalid record in smbXsrv_session_global.tdb:"
|
|
"key '%s' unsupported version - %d\n",
|
|
hex_encode_talloc(frame, key.dptr, key.dsize),
|
|
(int)global_blob.version));
|
|
goto done;
|
|
}
|
|
|
|
global_blob.info.info0->db_rec = rec;
|
|
ret = state->fn(global_blob.info.info0, state->private_data);
|
|
done:
|
|
TALLOC_FREE(frame);
|
|
return ret;
|
|
}
|
|
|
|
NTSTATUS smbXsrv_session_global_traverse(
|
|
int (*fn)(struct smbXsrv_session_global0 *, void *),
|
|
void *private_data)
|
|
{
|
|
|
|
NTSTATUS status;
|
|
int count = 0;
|
|
struct smbXsrv_session_global_traverse_state state = {
|
|
.fn = fn,
|
|
.private_data = private_data,
|
|
};
|
|
|
|
become_root();
|
|
status = smbXsrv_session_global_init(NULL);
|
|
if (!NT_STATUS_IS_OK(status)) {
|
|
unbecome_root();
|
|
DEBUG(0, ("Failed to initialize session_global: %s\n",
|
|
nt_errstr(status)));
|
|
return status;
|
|
}
|
|
|
|
status = dbwrap_traverse_read(smbXsrv_session_global_db_ctx,
|
|
smbXsrv_session_global_traverse_fn,
|
|
&state,
|
|
&count);
|
|
unbecome_root();
|
|
|
|
return status;
|
|
}
|