/*
send a message
*/
bool smbcli_request_send(struct smbcli_request *req)
{
if (IVAL(req->out.buffer, 0) == 0) {
_smb_setlen(req->out.buffer, req->out.size - NBT_HDR_SIZE);
}
smbcli_request_calculate_sign_mac(req);
smbcli_transport_send(req);
return true;
}
/*
send a session request
*/
struct smbcli_request *smbcli_transport_connect_send(struct smbcli_transport *transport,
struct nbt_name *calling,
struct nbt_name *called)
{
uint8_t *p;
struct smbcli_request *req;
DATA_BLOB calling_blob, called_blob;
TALLOC_CTX *tmp_ctx = talloc_new(transport);
NTSTATUS status;
status = nbt_name_dup(transport, called, &transport->called);
if (!NT_STATUS_IS_OK(status)) goto failed;
status = nbt_name_to_blob(tmp_ctx, &calling_blob, calling);
if (!NT_STATUS_IS_OK(status)) goto failed;
status = nbt_name_to_blob(tmp_ctx, &called_blob, called);
if (!NT_STATUS_IS_OK(status)) goto failed;
/* allocate output buffer */
req = smbcli_request_setup_nonsmb(transport,
NBT_HDR_SIZE +
calling_blob.length + called_blob.length);
if (req == NULL) goto failed;
/* put in the destination name */
p = req->out.buffer + NBT_HDR_SIZE;
memcpy(p, called_blob.data, called_blob.length);
p += called_blob.length;
memcpy(p, calling_blob.data, calling_blob.length);
p += calling_blob.length;
_smb_setlen(req->out.buffer, PTR_DIFF(p, req->out.buffer) - NBT_HDR_SIZE);
SCVAL(req->out.buffer,0,0x81);
if (!smbcli_request_send(req)) {
smbcli_request_destroy(req);
goto failed;
}
talloc_free(tmp_ctx);
return req;
failed:
talloc_free(tmp_ctx);
return NULL;
}
BOOL cli_session_request(struct cli_state *cli,
struct nmb_name *calling, struct nmb_name *called)
{
char *p;
int len = 4;
extern pstring user_socket_options;
/* 445 doesn't have session request */
if (cli->port == 445) return True;
/* send a session request (RFC 1002) */
memcpy(&(cli->calling), calling, sizeof(*calling));
memcpy(&(cli->called ), called , sizeof(*called ));
/* put in the destination name */
p = cli->outbuf+len;
name_mangle(cli->called .name, p, cli->called .name_type);
len += name_len(p);
/* and my name */
p = cli->outbuf+len;
name_mangle(cli->calling.name, p, cli->calling.name_type);
len += name_len(p);
/* setup the packet length
* Remove four bytes from the length count, since the length
* field in the NBT Session Service header counts the number
* of bytes which follow. The cli_send_smb() function knows
* about this and accounts for those four bytes.
* CRH.
*/
len -= 4;
_smb_setlen(cli->outbuf,len);
SCVAL(cli->outbuf,0,0x81);
#ifdef WITH_SSL
retry:
#endif /* WITH_SSL */
cli_send_smb(cli);
DEBUG(5,("Sent session request\n"));
if (!cli_receive_smb(cli))
return False;
if (CVAL(cli->inbuf,0) == 0x84) {
/* C. Hoch 9/14/95 Start */
/* For information, here is the response structure.
* We do the byte-twiddling to for portability.
struct RetargetResponse{
unsigned char type;
unsigned char flags;
int16 length;
int32 ip_addr;
int16 port;
};
*/
int port = (CVAL(cli->inbuf,8)<<8)+CVAL(cli->inbuf,9);
/* SESSION RETARGET */
putip((char *)&cli->dest_ip,cli->inbuf+4);
cli->fd = open_socket_out(SOCK_STREAM, &cli->dest_ip, port, LONG_CONNECT_TIMEOUT);
if (cli->fd == -1)
return False;
DEBUG(3,("Retargeted\n"));
set_socket_options(cli->fd,user_socket_options);
/* Try again */
{
static int depth;
BOOL ret;
if (depth > 4) {
DEBUG(0,("Retarget recursion - failing\n"));
return False;
}
depth++;
ret = cli_session_request(cli, calling, called);
depth--;
return ret;
}
} /* C. Hoch 9/14/95 End */
#ifdef WITH_SSL
if (CVAL(cli->inbuf,0) == 0x83 && CVAL(cli->inbuf,4) == 0x8e){ /* use ssl */
if (!sslutil_fd_is_ssl(cli->fd)){
if (sslutil_connect(cli->fd) == 0)
goto retry;
}
}
#endif /* WITH_SSL */
if (CVAL(cli->inbuf,0) != 0x82) {
/* This is the wrong place to put the error... JRA. */
cli->rap_error = CVAL(cli->inbuf,4);
return False;
}
return(True);
}
