NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
uint64_t persistent_id,
uint64_t volatile_id,
NTTIME now,
struct smbXsrv_open **_open)
{
struct smbXsrv_open_table *table = conn->open_table;
uint32_t local_id = volatile_id & UINT32_MAX;
uint64_t local_zeros = volatile_id & 0xFFFFFFFF00000000LLU;
uint32_t global_id = persistent_id & UINT32_MAX;
uint64_t global_zeros = persistent_id & 0xFFFFFFFF00000000LLU;
if (local_zeros != 0) {
return NT_STATUS_FILE_CLOSED;
}
if (global_zeros != 0) {
return NT_STATUS_FILE_CLOSED;
}
if (global_id == 0) {
return NT_STATUS_FILE_CLOSED;
}
return smbXsrv_open_local_lookup(table, local_id, global_id, now, _open);
}
NTSTATUS smb1srv_open_lookup(struct smbXsrv_connection *conn,
uint16_t fnum, NTTIME now,
struct smbXsrv_open **_open)
{
struct smbXsrv_open_table *table = conn->client->open_table;
uint32_t local_id = fnum;
uint32_t global_id = 0;
return smbXsrv_open_local_lookup(table, local_id, global_id, now, _open);
}
NTSTATUS smb2srv_open_lookup(struct smbXsrv_connection *conn,
uint64_t persistent_id,
uint64_t volatile_id,
NTTIME now,
struct smbXsrv_open **_open)
{
struct smbXsrv_open_table *table = conn->client->open_table;
uint32_t local_id = volatile_id & UINT32_MAX;
uint64_t local_zeros = volatile_id & 0xFFFFFFFF00000000LLU;
uint32_t global_id = persistent_id & UINT32_MAX;
uint64_t global_zeros = persistent_id & 0xFFFFFFFF00000000LLU;
NTSTATUS status;
if (local_zeros != 0) {
return NT_STATUS_FILE_CLOSED;
}
if (global_zeros != 0) {
return NT_STATUS_FILE_CLOSED;
}
if (global_id == 0) {
return NT_STATUS_FILE_CLOSED;
}
status = smbXsrv_open_local_lookup(table, local_id, global_id, now,
_open);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
/*
* Clear the replay cache for this create_guid if it exists:
* This is based on the assumption that this lookup will be
* triggered by a client request using the file-id for lookup.
* Hence the client has proven that it has in fact seen the
* reply to its initial create call. So subsequent create replays
* should be treated as invalid. Hence the index for create_guid
* lookup needs to be removed.
*/
status = smbXsrv_open_clear_replay_cache(*_open);
return status;
}
NTSTATUS smb2srv_open_lookup_replay_cache(struct smbXsrv_connection *conn,
const struct GUID *create_guid,
NTTIME now, /* TODO: needed ? */
struct smbXsrv_open **_open)
{
NTSTATUS status;
char *guid_string;
struct GUID_txt_buf buf;
uint32_t local_id = 0;
struct smbXsrv_open_table *table = conn->client->open_table;
struct db_context *db = table->local.replay_cache_db_ctx;
if (GUID_all_zero(create_guid)) {
return NT_STATUS_NOT_FOUND;
}
guid_string = GUID_buf_string(create_guid, &buf);
if (guid_string == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
status = dbwrap_fetch_uint32_bystring(db, guid_string, &local_id);
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
return status;
}
if (!NT_STATUS_IS_OK(status)) {
DBG_ERR("failed to fetch local_id from replay cache: %s\n",
nt_errstr(status));
return status;
}
status = smbXsrv_open_local_lookup(table, local_id, 0, /* global_id */
now, _open);
if (!NT_STATUS_IS_OK(status)) {
DBG_ERR("smbXsrv_open_local_lookup failed for local_id %u\n",
(unsigned)local_id);
}
return status;
}
