91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
/*
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Copyright (C) 2013 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <arpa/inet.h>
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#include <CUnit/CUnit.h>
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#include "iscsi.h"
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#include "iscsi-private.h"
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#include "scsi-lowlevel.h"
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#include "iscsi-test-cu.h"
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static int change_cmdsn;
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static int my_iscsi_queue_pdu(struct iscsi_context *iscsi, struct iscsi_pdu *pdu)
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{
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switch (change_cmdsn) {
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case 1:
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/* change the cmdsn so it becomes too big */
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scsi_set_uint32(&pdu->outdata.data[24], iscsi->expcmdsn - 1);
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/* fudge the cmdsn value back to where it should be if this
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* pdu is ignored.
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*/
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iscsi->cmdsn = iscsi->expcmdsn;
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break;
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}
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change_cmdsn = 0;
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return 0;
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}
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void test_iscsi_cmdsn_toolow(void)
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{
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int ret;
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logging(LOG_VERBOSE, LOG_BLANK_LINE);
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logging(LOG_VERBOSE, "Test sending invalid iSCSI CMDSN");
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logging(LOG_VERBOSE, "CMDSN MUST be in the range EXPCMDSN and MAXCMDSN");
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if (sd->iscsi_ctx == NULL) {
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const char *err = "[SKIPPED] This test is "
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"only supported for iSCSI backends";
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logging(LOG_NORMAL, "%s", err);
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CU_PASS(err);
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return;
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}
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logging(LOG_VERBOSE, "RFC3720:3.2.2.1 CMDSN < EXPCMDSN must be silently ignored by the target");
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logging(LOG_VERBOSE, "Send a TESTUNITREADY with CMDSN == EXPCMDSN-1. Should be ignored by the target.");
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sd->iscsi_ctx->use_immediate_data = ISCSI_IMMEDIATE_DATA_NO;
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sd->iscsi_ctx->target_max_recv_data_segment_length = block_size;
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local_iscsi_queue_pdu = my_iscsi_queue_pdu;
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change_cmdsn = 1;
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/* we don't want autoreconnect since some targets will incorrectly
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* drop the connection on this condition.
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*/
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iscsi_set_noautoreconnect(sd->iscsi_ctx, 1);
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iscsi_set_timeout(sd->iscsi_ctx, 3);
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ret = testunitready(sd,
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EXPECT_STATUS_TIMEOUT);
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CU_ASSERT_EQUAL(ret, 0);
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if (ret == 0) {
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logging(LOG_VERBOSE, "[SUCCESS] We did not receive a reply");
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} else {
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logging(LOG_VERBOSE, "[FAILURE] We got a response from the target but SMDSN was outside of the window.");
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}
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iscsi_set_noautoreconnect(sd->iscsi_ctx, 0);
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logging(LOG_VERBOSE, "Send a TESTUNITREADY with CMDSN == EXPCMDSN. should work again");
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TESTUNITREADY(sd,
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EXPECT_STATUS_GOOD);
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}
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