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/*
Copyright (C) 2010 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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 <stdio.h>
#include "iscsi.h"
#include "iscsi-private.h"
int iscsi_nop_out_async(struct iscsi_context *iscsi, iscsi_command_cb cb, unsigned char *data, int len, void *private_data)
{
struct iscsi_pdu *pdu;
if (iscsi == NULL) {
printf("trying to send nop-out on NULL context\n");
return -1;
}
if (iscsi->is_loggedin == 0) {
printf("trying send nop-out while not logged in\n");
return -2;
}
pdu = iscsi_allocate_pdu(iscsi, ISCSI_PDU_NOP_OUT, ISCSI_PDU_NOP_IN);
if (pdu == NULL) {
printf("Failed to allocate nop-out pdu\n");
return -3;
}
/* immediate flag */
iscsi_pdu_set_immediate(pdu);
/* flags */
iscsi_pdu_set_pduflags(pdu, 0x80);
/* ttt */
iscsi_pdu_set_ttt(pdu, 0xffffffff);
/* lun */
iscsi_pdu_set_lun(pdu, 2);
/* cmdsn is not increased if Immediate delivery*/
iscsi_pdu_set_cmdsn(pdu, iscsi->cmdsn);
pdu->cmdsn = iscsi->cmdsn;
// iscsi->cmdsn++;
pdu->callback = cb;
pdu->private_data = private_data;
if (iscsi_pdu_add_data(iscsi, pdu, data, len) != 0) {
printf("Failed to add outdata to nop-out\n");
iscsi_free_pdu(iscsi, pdu);
return -4;
}
if (iscsi_queue_pdu(iscsi, pdu) != 0) {
printf("failed to queue iscsi nop-out pdu\n");
iscsi_free_pdu(iscsi, pdu);
return -5;
}
return 0;
}
int iscsi_process_nop_out_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu, const unsigned char *hdr, int size)
{
struct iscsi_data data;
data.data = NULL;
data.size = 0;
if (size > ISCSI_HEADER_SIZE) {
data.data = discard_const(&hdr[ISCSI_HEADER_SIZE]);
data.size = size - ISCSI_HEADER_SIZE;
}
pdu->callback(iscsi, ISCSI_STATUS_GOOD, &data, pdu->private_data);
return 0;
}
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