static bool smbd_scavenger_running(struct smbd_scavenger_state *state)
{
if (state->scavenger_id == NULL) {
return false;
}
return serverid_exists(state->scavenger_id);
}
/*
* In case d->share_modes[i] conflicts with something or otherwise is
* being used, we need to make sure the corresponding process still
* exists.
*/
bool share_mode_stale_pid(struct share_mode_data *d, unsigned idx)
{
struct share_mode_entry *e;
if (idx > d->num_share_modes) {
DEBUG(1, ("Asking for index %u, only %u around\n",
idx, (unsigned)d->num_share_modes));
return false;
}
e = &d->share_modes[idx];
if (serverid_exists(&e->pid)) {
DEBUG(10, ("PID %s (index %u out of %u) still exists\n",
procid_str_static(&e->pid), idx,
(unsigned)d->num_share_modes));
return false;
}
DEBUG(10, ("PID %s (index %u out of %u) does not exist anymore\n",
procid_str_static(&e->pid), idx,
(unsigned)d->num_share_modes));
e->stale = true;
if (d->num_delete_tokens != 0) {
uint32_t i, num_stale;
/*
* We cannot have any delete tokens
* if there are no valid share modes.
*/
num_stale = 0;
for (i=0; i<d->num_share_modes; i++) {
if (d->share_modes[i].stale) {
num_stale += 1;
}
}
if (num_stale == d->num_share_modes) {
/*
* No non-stale share mode found
*/
TALLOC_FREE(d->delete_tokens);
d->num_delete_tokens = 0;
}
}
d->modified = true;
return true;
}
bool is_valid_share_mode_entry(const struct share_mode_entry *e)
{
int num_props = 0;
if (e->stale) {
return false;
}
num_props += ((e->op_type == NO_OPLOCK) ? 1 : 0);
num_props += (EXCLUSIVE_OPLOCK_TYPE(e->op_type) ? 1 : 0);
num_props += (LEVEL_II_OPLOCK_TYPE(e->op_type) ? 1 : 0);
if ((num_props > 1) && serverid_exists(&e->pid)) {
smb_panic("Invalid share mode entry");
}
return (num_props != 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)
{
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);
}
NTSTATUS smbXsrv_open_cleanup(uint64_t persistent_id)
{
NTSTATUS status = NT_STATUS_OK;
TALLOC_CTX *frame = talloc_stackframe();
struct smbXsrv_open_global0 *op = NULL;
TDB_DATA val;
struct db_record *rec;
bool delete_open = false;
uint32_t global_id = persistent_id & UINT32_MAX;
rec = smbXsrv_open_global_fetch_locked(smbXsrv_open_global_db_ctx,
global_id,
frame);
if (rec == NULL) {
status = NT_STATUS_NOT_FOUND;
goto done;
}
val = dbwrap_record_get_value(rec);
if (val.dsize == 0) {
DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
"empty record in %s, skipping...\n",
global_id, dbwrap_name(smbXsrv_open_global_db_ctx)));
goto done;
}
status = smbXsrv_open_global_parse_record(talloc_tos(), rec, &op);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("smbXsrv_open_cleanup[global: 0x%08x] "
"failed to read record: %s\n",
global_id, nt_errstr(status)));
goto done;
}
if (server_id_is_disconnected(&op->server_id)) {
struct timeval now, disconnect_time;
int64_t tdiff;
now = timeval_current();
nttime_to_timeval(&disconnect_time, op->disconnect_time);
tdiff = usec_time_diff(&now, &disconnect_time);
delete_open = (tdiff >= 1000*op->durable_timeout_msec);
DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
"disconnected at [%s] %us ago with "
"timeout of %us -%s reached\n",
global_id,
nt_time_string(frame, op->disconnect_time),
(unsigned)(tdiff/1000000),
op->durable_timeout_msec / 1000,
delete_open ? "" : " not"));
} else if (!serverid_exists(&op->server_id)) {
struct server_id_buf idbuf;
DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
"server[%s] does not exist\n",
global_id,
server_id_str_buf(op->server_id, &idbuf)));
delete_open = true;
}
if (!delete_open) {
goto done;
}
status = dbwrap_record_delete(rec);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("smbXsrv_open_cleanup[global: 0x%08x] "
"failed to delete record"
"from %s: %s\n", global_id,
dbwrap_name(smbXsrv_open_global_db_ctx),
nt_errstr(status)));
goto done;
}
DEBUG(10, ("smbXsrv_open_cleanup[global: 0x%08x] "
"delete record from %s\n",
global_id,
dbwrap_name(smbXsrv_open_global_db_ctx)));
done:
talloc_free(frame);
return status;
}
static int print_share_mode(const struct share_mode_entry *e,
const char *sharepath,
const char *fname,
const char *sname,
void *dummy)
{
static int count;
if (do_checks && !is_valid_share_mode_entry(e)) {
return 0;
}
if (count==0) {
d_printf("Locked files:\n");
d_printf("Pid Uid DenyMode Access R/W Oplock SharePath Name Time\n");
d_printf("--------------------------------------------------------------------------------------------------\n");
}
count++;
if (do_checks && !serverid_exists(&e->pid)) {
/* the process for this entry does not exist any more */
return 0;
}
if (Ucrit_checkPid(e->pid)) {
struct server_id_buf tmp;
d_printf("%-11s ", server_id_str_buf(e->pid, &tmp));
d_printf("%-9u ", (unsigned int)e->uid);
switch (map_share_mode_to_deny_mode(e->share_access,
e->private_options)) {
case DENY_NONE: d_printf("DENY_NONE "); break;
case DENY_ALL: d_printf("DENY_ALL "); break;
case DENY_DOS: d_printf("DENY_DOS "); break;
case DENY_READ: d_printf("DENY_READ "); break;
case DENY_WRITE:printf("DENY_WRITE "); break;
case DENY_FCB: d_printf("DENY_FCB "); break;
default: {
d_printf("unknown-please report ! "
"e->share_access = 0x%x, "
"e->private_options = 0x%x\n",
(unsigned int)e->share_access,
(unsigned int)e->private_options );
break;
}
}
d_printf("0x%-8x ",(unsigned int)e->access_mask);
if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
(FILE_READ_DATA|FILE_WRITE_DATA)) {
d_printf("RDWR ");
} else if (e->access_mask & FILE_WRITE_DATA) {
d_printf("WRONLY ");
} else {
d_printf("RDONLY ");
}
if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
(EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
d_printf("EXCLUSIVE+BATCH ");
} else if (e->op_type & EXCLUSIVE_OPLOCK) {
d_printf("EXCLUSIVE ");
} else if (e->op_type & BATCH_OPLOCK) {
d_printf("BATCH ");
} else if (e->op_type & LEVEL_II_OPLOCK) {
d_printf("LEVEL_II ");
} else if (e->op_type == LEASE_OPLOCK) {
uint32_t lstate = e->lease->current_state;
d_printf("LEASE(%s%s%s)%s%s%s ",
(lstate & SMB2_LEASE_READ)?"R":"",
(lstate & SMB2_LEASE_WRITE)?"W":"",
(lstate & SMB2_LEASE_HANDLE)?"H":"",
(lstate & SMB2_LEASE_READ)?"":" ",
(lstate & SMB2_LEASE_WRITE)?"":" ",
(lstate & SMB2_LEASE_HANDLE)?"":" ");
} else {
d_printf("NONE ");
}
d_printf(" %s %s%s %s",
sharepath, fname,
sname ? sname : "",
time_to_asc((time_t)e->time.tv_sec));
}
return 0;
}
