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0bcc297e2b
Convert "x == true" to "x" and "x == false" to "!x". Signed-off-by: Christophe Vu-Brugier <cvubrugier@yahoo.fr> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
1982 lines
54 KiB
C
1982 lines
54 KiB
C
/*******************************************************************************
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* This file contains main functions related to iSCSI Parameter negotiation.
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*
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* (c) Copyright 2007-2013 Datera, Inc.
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*
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* Author: Nicholas A. Bellinger <nab@linux-iscsi.org>
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*
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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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*
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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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******************************************************************************/
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#include <linux/slab.h>
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#include "iscsi_target_core.h"
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#include "iscsi_target_util.h"
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#include "iscsi_target_parameters.h"
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int iscsi_login_rx_data(
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struct iscsi_conn *conn,
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char *buf,
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int length)
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{
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int rx_got;
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struct kvec iov;
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memset(&iov, 0, sizeof(struct kvec));
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iov.iov_len = length;
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iov.iov_base = buf;
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/*
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* Initial Marker-less Interval.
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* Add the values regardless of IFMarker/OFMarker, considering
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* it may not be negoitated yet.
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*/
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conn->of_marker += length;
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rx_got = rx_data(conn, &iov, 1, length);
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if (rx_got != length) {
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pr_err("rx_data returned %d, expecting %d.\n",
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rx_got, length);
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return -1;
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}
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return 0 ;
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}
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int iscsi_login_tx_data(
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struct iscsi_conn *conn,
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char *pdu_buf,
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char *text_buf,
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int text_length)
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{
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int length, tx_sent, iov_cnt = 1;
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struct kvec iov[2];
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length = (ISCSI_HDR_LEN + text_length);
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memset(&iov[0], 0, 2 * sizeof(struct kvec));
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iov[0].iov_len = ISCSI_HDR_LEN;
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iov[0].iov_base = pdu_buf;
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if (text_buf && text_length) {
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iov[1].iov_len = text_length;
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iov[1].iov_base = text_buf;
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iov_cnt++;
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}
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/*
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* Initial Marker-less Interval.
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* Add the values regardless of IFMarker/OFMarker, considering
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* it may not be negoitated yet.
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*/
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conn->if_marker += length;
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tx_sent = tx_data(conn, &iov[0], iov_cnt, length);
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if (tx_sent != length) {
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pr_err("tx_data returned %d, expecting %d.\n",
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tx_sent, length);
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return -1;
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}
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return 0;
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}
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void iscsi_dump_conn_ops(struct iscsi_conn_ops *conn_ops)
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{
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pr_debug("HeaderDigest: %s\n", (conn_ops->HeaderDigest) ?
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"CRC32C" : "None");
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pr_debug("DataDigest: %s\n", (conn_ops->DataDigest) ?
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"CRC32C" : "None");
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pr_debug("MaxRecvDataSegmentLength: %u\n",
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conn_ops->MaxRecvDataSegmentLength);
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pr_debug("OFMarker: %s\n", (conn_ops->OFMarker) ? "Yes" : "No");
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pr_debug("IFMarker: %s\n", (conn_ops->IFMarker) ? "Yes" : "No");
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if (conn_ops->OFMarker)
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pr_debug("OFMarkInt: %u\n", conn_ops->OFMarkInt);
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if (conn_ops->IFMarker)
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pr_debug("IFMarkInt: %u\n", conn_ops->IFMarkInt);
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}
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void iscsi_dump_sess_ops(struct iscsi_sess_ops *sess_ops)
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{
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pr_debug("InitiatorName: %s\n", sess_ops->InitiatorName);
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pr_debug("InitiatorAlias: %s\n", sess_ops->InitiatorAlias);
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pr_debug("TargetName: %s\n", sess_ops->TargetName);
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pr_debug("TargetAlias: %s\n", sess_ops->TargetAlias);
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pr_debug("TargetPortalGroupTag: %hu\n",
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sess_ops->TargetPortalGroupTag);
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pr_debug("MaxConnections: %hu\n", sess_ops->MaxConnections);
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pr_debug("InitialR2T: %s\n",
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(sess_ops->InitialR2T) ? "Yes" : "No");
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pr_debug("ImmediateData: %s\n", (sess_ops->ImmediateData) ?
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"Yes" : "No");
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pr_debug("MaxBurstLength: %u\n", sess_ops->MaxBurstLength);
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pr_debug("FirstBurstLength: %u\n", sess_ops->FirstBurstLength);
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pr_debug("DefaultTime2Wait: %hu\n", sess_ops->DefaultTime2Wait);
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pr_debug("DefaultTime2Retain: %hu\n",
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sess_ops->DefaultTime2Retain);
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pr_debug("MaxOutstandingR2T: %hu\n",
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sess_ops->MaxOutstandingR2T);
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pr_debug("DataPDUInOrder: %s\n",
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(sess_ops->DataPDUInOrder) ? "Yes" : "No");
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pr_debug("DataSequenceInOrder: %s\n",
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(sess_ops->DataSequenceInOrder) ? "Yes" : "No");
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pr_debug("ErrorRecoveryLevel: %hu\n",
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sess_ops->ErrorRecoveryLevel);
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pr_debug("SessionType: %s\n", (sess_ops->SessionType) ?
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"Discovery" : "Normal");
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}
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void iscsi_print_params(struct iscsi_param_list *param_list)
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{
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struct iscsi_param *param;
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list_for_each_entry(param, ¶m_list->param_list, p_list)
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pr_debug("%s: %s\n", param->name, param->value);
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}
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static struct iscsi_param *iscsi_set_default_param(struct iscsi_param_list *param_list,
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char *name, char *value, u8 phase, u8 scope, u8 sender,
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u16 type_range, u8 use)
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{
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struct iscsi_param *param = NULL;
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param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
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if (!param) {
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pr_err("Unable to allocate memory for parameter.\n");
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goto out;
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}
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INIT_LIST_HEAD(¶m->p_list);
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param->name = kstrdup(name, GFP_KERNEL);
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if (!param->name) {
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pr_err("Unable to allocate memory for parameter name.\n");
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goto out;
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}
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param->value = kstrdup(value, GFP_KERNEL);
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if (!param->value) {
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pr_err("Unable to allocate memory for parameter value.\n");
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goto out;
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}
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param->phase = phase;
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param->scope = scope;
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param->sender = sender;
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param->use = use;
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param->type_range = type_range;
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switch (param->type_range) {
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case TYPERANGE_BOOL_AND:
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param->type = TYPE_BOOL_AND;
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break;
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case TYPERANGE_BOOL_OR:
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param->type = TYPE_BOOL_OR;
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break;
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case TYPERANGE_0_TO_2:
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case TYPERANGE_0_TO_3600:
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case TYPERANGE_0_TO_32767:
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case TYPERANGE_0_TO_65535:
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case TYPERANGE_1_TO_65535:
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case TYPERANGE_2_TO_3600:
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case TYPERANGE_512_TO_16777215:
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param->type = TYPE_NUMBER;
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break;
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case TYPERANGE_AUTH:
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case TYPERANGE_DIGEST:
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param->type = TYPE_VALUE_LIST | TYPE_STRING;
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break;
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case TYPERANGE_MARKINT:
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param->type = TYPE_NUMBER_RANGE;
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param->type_range |= TYPERANGE_1_TO_65535;
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break;
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case TYPERANGE_ISCSINAME:
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case TYPERANGE_SESSIONTYPE:
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case TYPERANGE_TARGETADDRESS:
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case TYPERANGE_UTF8:
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param->type = TYPE_STRING;
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break;
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default:
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pr_err("Unknown type_range 0x%02x\n",
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param->type_range);
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goto out;
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}
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list_add_tail(¶m->p_list, ¶m_list->param_list);
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return param;
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out:
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if (param) {
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kfree(param->value);
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kfree(param->name);
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kfree(param);
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}
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return NULL;
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}
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/* #warning Add extension keys */
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int iscsi_create_default_params(struct iscsi_param_list **param_list_ptr)
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{
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struct iscsi_param *param = NULL;
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struct iscsi_param_list *pl;
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pl = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
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if (!pl) {
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pr_err("Unable to allocate memory for"
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" struct iscsi_param_list.\n");
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return -1 ;
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}
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INIT_LIST_HEAD(&pl->param_list);
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INIT_LIST_HEAD(&pl->extra_response_list);
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/*
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* The format for setting the initial parameter definitions are:
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*
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* Parameter name:
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* Initial value:
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* Allowable phase:
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* Scope:
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* Allowable senders:
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* Typerange:
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* Use:
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*/
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param = iscsi_set_default_param(pl, AUTHMETHOD, INITIAL_AUTHMETHOD,
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PHASE_SECURITY, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_AUTH, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, HEADERDIGEST, INITIAL_HEADERDIGEST,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_DIGEST, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, DATADIGEST, INITIAL_DATADIGEST,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_DIGEST, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, MAXCONNECTIONS,
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INITIAL_MAXCONNECTIONS, PHASE_OPERATIONAL,
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SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, SENDTARGETS, INITIAL_SENDTARGETS,
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PHASE_FFP0, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
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TYPERANGE_UTF8, 0);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, TARGETNAME, INITIAL_TARGETNAME,
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PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_ISCSINAME, USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, INITIATORNAME,
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INITIAL_INITIATORNAME, PHASE_DECLARATIVE,
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SCOPE_SESSION_WIDE, SENDER_INITIATOR,
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TYPERANGE_ISCSINAME, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, TARGETALIAS, INITIAL_TARGETALIAS,
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PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
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TYPERANGE_UTF8, USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, INITIATORALIAS,
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INITIAL_INITIATORALIAS, PHASE_DECLARATIVE,
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SCOPE_SESSION_WIDE, SENDER_INITIATOR, TYPERANGE_UTF8,
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USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, TARGETADDRESS,
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INITIAL_TARGETADDRESS, PHASE_DECLARATIVE,
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SCOPE_SESSION_WIDE, SENDER_TARGET,
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TYPERANGE_TARGETADDRESS, USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, TARGETPORTALGROUPTAG,
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INITIAL_TARGETPORTALGROUPTAG,
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PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_TARGET,
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TYPERANGE_0_TO_65535, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, INITIALR2T, INITIAL_INITIALR2T,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, IMMEDIATEDATA,
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INITIAL_IMMEDIATEDATA, PHASE_OPERATIONAL,
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SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_AND,
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USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, MAXXMITDATASEGMENTLENGTH,
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INITIAL_MAXXMITDATASEGMENTLENGTH,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_512_TO_16777215, USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, MAXRECVDATASEGMENTLENGTH,
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INITIAL_MAXRECVDATASEGMENTLENGTH,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_512_TO_16777215, USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, MAXBURSTLENGTH,
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INITIAL_MAXBURSTLENGTH, PHASE_OPERATIONAL,
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SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, FIRSTBURSTLENGTH,
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INITIAL_FIRSTBURSTLENGTH,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_512_TO_16777215, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, DEFAULTTIME2WAIT,
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INITIAL_DEFAULTTIME2WAIT,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, DEFAULTTIME2RETAIN,
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INITIAL_DEFAULTTIME2RETAIN,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_0_TO_3600, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, MAXOUTSTANDINGR2T,
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INITIAL_MAXOUTSTANDINGR2T,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_1_TO_65535, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, DATAPDUINORDER,
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INITIAL_DATAPDUINORDER, PHASE_OPERATIONAL,
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SCOPE_SESSION_WIDE, SENDER_BOTH, TYPERANGE_BOOL_OR,
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USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, DATASEQUENCEINORDER,
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INITIAL_DATASEQUENCEINORDER,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_BOOL_OR, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, ERRORRECOVERYLEVEL,
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INITIAL_ERRORRECOVERYLEVEL,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_0_TO_2, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, SESSIONTYPE, INITIAL_SESSIONTYPE,
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PHASE_DECLARATIVE, SCOPE_SESSION_WIDE, SENDER_INITIATOR,
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TYPERANGE_SESSIONTYPE, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, IFMARKER, INITIAL_IFMARKER,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, OFMARKER, INITIAL_OFMARKER,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_BOOL_AND, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, IFMARKINT, INITIAL_IFMARKINT,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_MARKINT, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, OFMARKINT, INITIAL_OFMARKINT,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_MARKINT, USE_INITIAL_ONLY);
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if (!param)
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goto out;
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/*
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* Extra parameters for ISER from RFC-5046
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*/
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param = iscsi_set_default_param(pl, RDMAEXTENSIONS, INITIAL_RDMAEXTENSIONS,
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PHASE_OPERATIONAL, SCOPE_SESSION_WIDE, SENDER_BOTH,
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TYPERANGE_BOOL_AND, USE_LEADING_ONLY);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, INITIATORRECVDATASEGMENTLENGTH,
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INITIAL_INITIATORRECVDATASEGMENTLENGTH,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_512_TO_16777215, USE_ALL);
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if (!param)
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goto out;
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param = iscsi_set_default_param(pl, TARGETRECVDATASEGMENTLENGTH,
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INITIAL_TARGETRECVDATASEGMENTLENGTH,
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PHASE_OPERATIONAL, SCOPE_CONNECTION_ONLY, SENDER_BOTH,
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TYPERANGE_512_TO_16777215, USE_ALL);
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if (!param)
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goto out;
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|
|
|
*param_list_ptr = pl;
|
|
return 0;
|
|
out:
|
|
iscsi_release_param_list(pl);
|
|
return -1;
|
|
}
|
|
|
|
int iscsi_set_keys_to_negotiate(
|
|
struct iscsi_param_list *param_list,
|
|
bool iser)
|
|
{
|
|
struct iscsi_param *param;
|
|
|
|
param_list->iser = iser;
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
param->state = 0;
|
|
if (!strcmp(param->name, AUTHMETHOD)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, HEADERDIGEST)) {
|
|
if (!iser)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, DATADIGEST)) {
|
|
if (!iser)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, MAXCONNECTIONS)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, TARGETNAME)) {
|
|
continue;
|
|
} else if (!strcmp(param->name, INITIATORNAME)) {
|
|
continue;
|
|
} else if (!strcmp(param->name, TARGETALIAS)) {
|
|
if (param->value)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, INITIATORALIAS)) {
|
|
continue;
|
|
} else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, INITIALR2T)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, IMMEDIATEDATA)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
|
|
if (!iser)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
|
|
continue;
|
|
} else if (!strcmp(param->name, MAXBURSTLENGTH)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, DATAPDUINORDER)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, SESSIONTYPE)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, IFMARKER)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, OFMARKER)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, IFMARKINT)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, OFMARKINT)) {
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, RDMAEXTENSIONS)) {
|
|
if (iser)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
|
|
if (iser)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
} else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) {
|
|
if (iser)
|
|
SET_PSTATE_NEGOTIATE(param);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsi_set_keys_irrelevant_for_discovery(
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_param *param;
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (!strcmp(param->name, MAXCONNECTIONS))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, INITIALR2T))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, IMMEDIATEDATA))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, MAXBURSTLENGTH))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, FIRSTBURSTLENGTH))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, MAXOUTSTANDINGR2T))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, DATAPDUINORDER))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, DATASEQUENCEINORDER))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, ERRORRECOVERYLEVEL))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, DEFAULTTIME2WAIT))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, DEFAULTTIME2RETAIN))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, IFMARKER))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, OFMARKER))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, IFMARKINT))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, OFMARKINT))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, RDMAEXTENSIONS))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH))
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsi_copy_param_list(
|
|
struct iscsi_param_list **dst_param_list,
|
|
struct iscsi_param_list *src_param_list,
|
|
int leading)
|
|
{
|
|
struct iscsi_param *param = NULL;
|
|
struct iscsi_param *new_param = NULL;
|
|
struct iscsi_param_list *param_list = NULL;
|
|
|
|
param_list = kzalloc(sizeof(struct iscsi_param_list), GFP_KERNEL);
|
|
if (!param_list) {
|
|
pr_err("Unable to allocate memory for struct iscsi_param_list.\n");
|
|
goto err_out;
|
|
}
|
|
INIT_LIST_HEAD(¶m_list->param_list);
|
|
INIT_LIST_HEAD(¶m_list->extra_response_list);
|
|
|
|
list_for_each_entry(param, &src_param_list->param_list, p_list) {
|
|
if (!leading && (param->scope & SCOPE_SESSION_WIDE)) {
|
|
if ((strcmp(param->name, "TargetName") != 0) &&
|
|
(strcmp(param->name, "InitiatorName") != 0) &&
|
|
(strcmp(param->name, "TargetPortalGroupTag") != 0))
|
|
continue;
|
|
}
|
|
|
|
new_param = kzalloc(sizeof(struct iscsi_param), GFP_KERNEL);
|
|
if (!new_param) {
|
|
pr_err("Unable to allocate memory for struct iscsi_param.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
new_param->name = kstrdup(param->name, GFP_KERNEL);
|
|
new_param->value = kstrdup(param->value, GFP_KERNEL);
|
|
if (!new_param->value || !new_param->name) {
|
|
kfree(new_param->value);
|
|
kfree(new_param->name);
|
|
kfree(new_param);
|
|
pr_err("Unable to allocate memory for parameter name/value.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
new_param->set_param = param->set_param;
|
|
new_param->phase = param->phase;
|
|
new_param->scope = param->scope;
|
|
new_param->sender = param->sender;
|
|
new_param->type = param->type;
|
|
new_param->use = param->use;
|
|
new_param->type_range = param->type_range;
|
|
|
|
list_add_tail(&new_param->p_list, ¶m_list->param_list);
|
|
}
|
|
|
|
if (!list_empty(¶m_list->param_list)) {
|
|
*dst_param_list = param_list;
|
|
} else {
|
|
pr_err("No parameters allocated.\n");
|
|
goto err_out;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
iscsi_release_param_list(param_list);
|
|
return -1;
|
|
}
|
|
|
|
static void iscsi_release_extra_responses(struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_extra_response *er, *er_tmp;
|
|
|
|
list_for_each_entry_safe(er, er_tmp, ¶m_list->extra_response_list,
|
|
er_list) {
|
|
list_del(&er->er_list);
|
|
kfree(er);
|
|
}
|
|
}
|
|
|
|
void iscsi_release_param_list(struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_param *param, *param_tmp;
|
|
|
|
list_for_each_entry_safe(param, param_tmp, ¶m_list->param_list,
|
|
p_list) {
|
|
list_del(¶m->p_list);
|
|
|
|
kfree(param->name);
|
|
kfree(param->value);
|
|
kfree(param);
|
|
}
|
|
|
|
iscsi_release_extra_responses(param_list);
|
|
|
|
kfree(param_list);
|
|
}
|
|
|
|
struct iscsi_param *iscsi_find_param_from_key(
|
|
char *key,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_param *param;
|
|
|
|
if (!key || !param_list) {
|
|
pr_err("Key or parameter list pointer is NULL.\n");
|
|
return NULL;
|
|
}
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (!strcmp(key, param->name))
|
|
return param;
|
|
}
|
|
|
|
pr_err("Unable to locate key \"%s\".\n", key);
|
|
return NULL;
|
|
}
|
|
|
|
int iscsi_extract_key_value(char *textbuf, char **key, char **value)
|
|
{
|
|
*value = strchr(textbuf, '=');
|
|
if (!*value) {
|
|
pr_err("Unable to locate \"=\" separator for key,"
|
|
" ignoring request.\n");
|
|
return -1;
|
|
}
|
|
|
|
*key = textbuf;
|
|
**value = '\0';
|
|
*value = *value + 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsi_update_param_value(struct iscsi_param *param, char *value)
|
|
{
|
|
kfree(param->value);
|
|
|
|
param->value = kstrdup(value, GFP_KERNEL);
|
|
if (!param->value) {
|
|
pr_err("Unable to allocate memory for value.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
pr_debug("iSCSI Parameter updated to %s=%s\n",
|
|
param->name, param->value);
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_add_notunderstood_response(
|
|
char *key,
|
|
char *value,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_extra_response *extra_response;
|
|
|
|
if (strlen(value) > VALUE_MAXLEN) {
|
|
pr_err("Value for notunderstood key \"%s\" exceeds %d,"
|
|
" protocol error.\n", key, VALUE_MAXLEN);
|
|
return -1;
|
|
}
|
|
|
|
extra_response = kzalloc(sizeof(struct iscsi_extra_response), GFP_KERNEL);
|
|
if (!extra_response) {
|
|
pr_err("Unable to allocate memory for"
|
|
" struct iscsi_extra_response.\n");
|
|
return -1;
|
|
}
|
|
INIT_LIST_HEAD(&extra_response->er_list);
|
|
|
|
strlcpy(extra_response->key, key, sizeof(extra_response->key));
|
|
strlcpy(extra_response->value, NOTUNDERSTOOD,
|
|
sizeof(extra_response->value));
|
|
|
|
list_add_tail(&extra_response->er_list,
|
|
¶m_list->extra_response_list);
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_check_for_auth_key(char *key)
|
|
{
|
|
/*
|
|
* RFC 1994
|
|
*/
|
|
if (!strcmp(key, "CHAP_A") || !strcmp(key, "CHAP_I") ||
|
|
!strcmp(key, "CHAP_C") || !strcmp(key, "CHAP_N") ||
|
|
!strcmp(key, "CHAP_R"))
|
|
return 1;
|
|
|
|
/*
|
|
* RFC 2945
|
|
*/
|
|
if (!strcmp(key, "SRP_U") || !strcmp(key, "SRP_N") ||
|
|
!strcmp(key, "SRP_g") || !strcmp(key, "SRP_s") ||
|
|
!strcmp(key, "SRP_A") || !strcmp(key, "SRP_B") ||
|
|
!strcmp(key, "SRP_M") || !strcmp(key, "SRP_HM"))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void iscsi_check_proposer_for_optional_reply(struct iscsi_param *param)
|
|
{
|
|
if (IS_TYPE_BOOL_AND(param)) {
|
|
if (!strcmp(param->value, NO))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
} else if (IS_TYPE_BOOL_OR(param)) {
|
|
if (!strcmp(param->value, YES))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
/*
|
|
* Required for gPXE iSCSI boot client
|
|
*/
|
|
if (!strcmp(param->name, IMMEDIATEDATA))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
} else if (IS_TYPE_NUMBER(param)) {
|
|
if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
/*
|
|
* The GlobalSAN iSCSI Initiator for MacOSX does
|
|
* not respond to MaxBurstLength, FirstBurstLength,
|
|
* DefaultTime2Wait or DefaultTime2Retain parameter keys.
|
|
* So, we set them to 'reply optional' here, and assume the
|
|
* the defaults from iscsi_parameters.h if the initiator
|
|
* is not RFC compliant and the keys are not negotiated.
|
|
*/
|
|
if (!strcmp(param->name, MAXBURSTLENGTH))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
if (!strcmp(param->name, FIRSTBURSTLENGTH))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
if (!strcmp(param->name, DEFAULTTIME2WAIT))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
if (!strcmp(param->name, DEFAULTTIME2RETAIN))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
/*
|
|
* Required for gPXE iSCSI boot client
|
|
*/
|
|
if (!strcmp(param->name, MAXCONNECTIONS))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
} else if (IS_PHASE_DECLARATIVE(param))
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
}
|
|
|
|
static int iscsi_check_boolean_value(struct iscsi_param *param, char *value)
|
|
{
|
|
if (strcmp(value, YES) && strcmp(value, NO)) {
|
|
pr_err("Illegal value for \"%s\", must be either"
|
|
" \"%s\" or \"%s\".\n", param->name, YES, NO);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_check_numerical_value(struct iscsi_param *param, char *value_ptr)
|
|
{
|
|
char *tmpptr;
|
|
int value = 0;
|
|
|
|
value = simple_strtoul(value_ptr, &tmpptr, 0);
|
|
|
|
if (IS_TYPERANGE_0_TO_2(param)) {
|
|
if ((value < 0) || (value > 2)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 0 and 2.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
if (IS_TYPERANGE_0_TO_3600(param)) {
|
|
if ((value < 0) || (value > 3600)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 0 and 3600.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
if (IS_TYPERANGE_0_TO_32767(param)) {
|
|
if ((value < 0) || (value > 32767)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 0 and 32767.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
if (IS_TYPERANGE_0_TO_65535(param)) {
|
|
if ((value < 0) || (value > 65535)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 0 and 65535.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
if (IS_TYPERANGE_1_TO_65535(param)) {
|
|
if ((value < 1) || (value > 65535)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 1 and 65535.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
if (IS_TYPERANGE_2_TO_3600(param)) {
|
|
if ((value < 2) || (value > 3600)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 2 and 3600.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
if (IS_TYPERANGE_512_TO_16777215(param)) {
|
|
if ((value < 512) || (value > 16777215)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" between 512 and 16777215.\n", param->name);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_check_numerical_range_value(struct iscsi_param *param, char *value)
|
|
{
|
|
char *left_val_ptr = NULL, *right_val_ptr = NULL;
|
|
char *tilde_ptr = NULL;
|
|
u32 left_val, right_val, local_left_val;
|
|
|
|
if (strcmp(param->name, IFMARKINT) &&
|
|
strcmp(param->name, OFMARKINT)) {
|
|
pr_err("Only parameters \"%s\" or \"%s\" may contain a"
|
|
" numerical range value.\n", IFMARKINT, OFMARKINT);
|
|
return -1;
|
|
}
|
|
|
|
if (IS_PSTATE_PROPOSER(param))
|
|
return 0;
|
|
|
|
tilde_ptr = strchr(value, '~');
|
|
if (!tilde_ptr) {
|
|
pr_err("Unable to locate numerical range indicator"
|
|
" \"~\" for \"%s\".\n", param->name);
|
|
return -1;
|
|
}
|
|
*tilde_ptr = '\0';
|
|
|
|
left_val_ptr = value;
|
|
right_val_ptr = value + strlen(left_val_ptr) + 1;
|
|
|
|
if (iscsi_check_numerical_value(param, left_val_ptr) < 0)
|
|
return -1;
|
|
if (iscsi_check_numerical_value(param, right_val_ptr) < 0)
|
|
return -1;
|
|
|
|
left_val = simple_strtoul(left_val_ptr, NULL, 0);
|
|
right_val = simple_strtoul(right_val_ptr, NULL, 0);
|
|
*tilde_ptr = '~';
|
|
|
|
if (right_val < left_val) {
|
|
pr_err("Numerical range for parameter \"%s\" contains"
|
|
" a right value which is less than the left.\n",
|
|
param->name);
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
* For now, enforce reasonable defaults for [I,O]FMarkInt.
|
|
*/
|
|
tilde_ptr = strchr(param->value, '~');
|
|
if (!tilde_ptr) {
|
|
pr_err("Unable to locate numerical range indicator"
|
|
" \"~\" for \"%s\".\n", param->name);
|
|
return -1;
|
|
}
|
|
*tilde_ptr = '\0';
|
|
|
|
left_val_ptr = param->value;
|
|
right_val_ptr = param->value + strlen(left_val_ptr) + 1;
|
|
|
|
local_left_val = simple_strtoul(left_val_ptr, NULL, 0);
|
|
*tilde_ptr = '~';
|
|
|
|
if (param->set_param) {
|
|
if ((left_val < local_left_val) ||
|
|
(right_val < local_left_val)) {
|
|
pr_err("Passed value range \"%u~%u\" is below"
|
|
" minimum left value \"%u\" for key \"%s\","
|
|
" rejecting.\n", left_val, right_val,
|
|
local_left_val, param->name);
|
|
return -1;
|
|
}
|
|
} else {
|
|
if ((left_val < local_left_val) &&
|
|
(right_val < local_left_val)) {
|
|
pr_err("Received value range \"%u~%u\" is"
|
|
" below minimum left value \"%u\" for key"
|
|
" \"%s\", rejecting.\n", left_val, right_val,
|
|
local_left_val, param->name);
|
|
SET_PSTATE_REJECT(param);
|
|
if (iscsi_update_param_value(param, REJECT) < 0)
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_check_string_or_list_value(struct iscsi_param *param, char *value)
|
|
{
|
|
if (IS_PSTATE_PROPOSER(param))
|
|
return 0;
|
|
|
|
if (IS_TYPERANGE_AUTH_PARAM(param)) {
|
|
if (strcmp(value, KRB5) && strcmp(value, SPKM1) &&
|
|
strcmp(value, SPKM2) && strcmp(value, SRP) &&
|
|
strcmp(value, CHAP) && strcmp(value, NONE)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" \"%s\", \"%s\", \"%s\", \"%s\", \"%s\""
|
|
" or \"%s\".\n", param->name, KRB5,
|
|
SPKM1, SPKM2, SRP, CHAP, NONE);
|
|
return -1;
|
|
}
|
|
}
|
|
if (IS_TYPERANGE_DIGEST_PARAM(param)) {
|
|
if (strcmp(value, CRC32C) && strcmp(value, NONE)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" \"%s\" or \"%s\".\n", param->name,
|
|
CRC32C, NONE);
|
|
return -1;
|
|
}
|
|
}
|
|
if (IS_TYPERANGE_SESSIONTYPE(param)) {
|
|
if (strcmp(value, DISCOVERY) && strcmp(value, NORMAL)) {
|
|
pr_err("Illegal value for \"%s\", must be"
|
|
" \"%s\" or \"%s\".\n", param->name,
|
|
DISCOVERY, NORMAL);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function is used to pick a value range number, currently just
|
|
* returns the lesser of both right values.
|
|
*/
|
|
static char *iscsi_get_value_from_number_range(
|
|
struct iscsi_param *param,
|
|
char *value)
|
|
{
|
|
char *end_ptr, *tilde_ptr1 = NULL, *tilde_ptr2 = NULL;
|
|
u32 acceptor_right_value, proposer_right_value;
|
|
|
|
tilde_ptr1 = strchr(value, '~');
|
|
if (!tilde_ptr1)
|
|
return NULL;
|
|
*tilde_ptr1++ = '\0';
|
|
proposer_right_value = simple_strtoul(tilde_ptr1, &end_ptr, 0);
|
|
|
|
tilde_ptr2 = strchr(param->value, '~');
|
|
if (!tilde_ptr2)
|
|
return NULL;
|
|
*tilde_ptr2++ = '\0';
|
|
acceptor_right_value = simple_strtoul(tilde_ptr2, &end_ptr, 0);
|
|
|
|
return (acceptor_right_value >= proposer_right_value) ?
|
|
tilde_ptr1 : tilde_ptr2;
|
|
}
|
|
|
|
static char *iscsi_check_valuelist_for_support(
|
|
struct iscsi_param *param,
|
|
char *value)
|
|
{
|
|
char *tmp1 = NULL, *tmp2 = NULL;
|
|
char *acceptor_values = NULL, *proposer_values = NULL;
|
|
|
|
acceptor_values = param->value;
|
|
proposer_values = value;
|
|
|
|
do {
|
|
if (!proposer_values)
|
|
return NULL;
|
|
tmp1 = strchr(proposer_values, ',');
|
|
if (tmp1)
|
|
*tmp1 = '\0';
|
|
acceptor_values = param->value;
|
|
do {
|
|
if (!acceptor_values) {
|
|
if (tmp1)
|
|
*tmp1 = ',';
|
|
return NULL;
|
|
}
|
|
tmp2 = strchr(acceptor_values, ',');
|
|
if (tmp2)
|
|
*tmp2 = '\0';
|
|
if (!strcmp(acceptor_values, proposer_values)) {
|
|
if (tmp2)
|
|
*tmp2 = ',';
|
|
goto out;
|
|
}
|
|
if (tmp2)
|
|
*tmp2++ = ',';
|
|
|
|
acceptor_values = tmp2;
|
|
} while (acceptor_values);
|
|
if (tmp1)
|
|
*tmp1++ = ',';
|
|
proposer_values = tmp1;
|
|
} while (proposer_values);
|
|
|
|
out:
|
|
return proposer_values;
|
|
}
|
|
|
|
static int iscsi_check_acceptor_state(struct iscsi_param *param, char *value,
|
|
struct iscsi_conn *conn)
|
|
{
|
|
u8 acceptor_boolean_value = 0, proposer_boolean_value = 0;
|
|
char *negoitated_value = NULL;
|
|
|
|
if (IS_PSTATE_ACCEPTOR(param)) {
|
|
pr_err("Received key \"%s\" twice, protocol error.\n",
|
|
param->name);
|
|
return -1;
|
|
}
|
|
|
|
if (IS_PSTATE_REJECT(param))
|
|
return 0;
|
|
|
|
if (IS_TYPE_BOOL_AND(param)) {
|
|
if (!strcmp(value, YES))
|
|
proposer_boolean_value = 1;
|
|
if (!strcmp(param->value, YES))
|
|
acceptor_boolean_value = 1;
|
|
if (acceptor_boolean_value && proposer_boolean_value)
|
|
do {} while (0);
|
|
else {
|
|
if (iscsi_update_param_value(param, NO) < 0)
|
|
return -1;
|
|
if (!proposer_boolean_value)
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
}
|
|
} else if (IS_TYPE_BOOL_OR(param)) {
|
|
if (!strcmp(value, YES))
|
|
proposer_boolean_value = 1;
|
|
if (!strcmp(param->value, YES))
|
|
acceptor_boolean_value = 1;
|
|
if (acceptor_boolean_value || proposer_boolean_value) {
|
|
if (iscsi_update_param_value(param, YES) < 0)
|
|
return -1;
|
|
if (proposer_boolean_value)
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
}
|
|
} else if (IS_TYPE_NUMBER(param)) {
|
|
char *tmpptr, buf[11];
|
|
u32 acceptor_value = simple_strtoul(param->value, &tmpptr, 0);
|
|
u32 proposer_value = simple_strtoul(value, &tmpptr, 0);
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (!strcmp(param->name, MAXCONNECTIONS) ||
|
|
!strcmp(param->name, MAXBURSTLENGTH) ||
|
|
!strcmp(param->name, FIRSTBURSTLENGTH) ||
|
|
!strcmp(param->name, MAXOUTSTANDINGR2T) ||
|
|
!strcmp(param->name, DEFAULTTIME2RETAIN) ||
|
|
!strcmp(param->name, ERRORRECOVERYLEVEL)) {
|
|
if (proposer_value > acceptor_value) {
|
|
sprintf(buf, "%u", acceptor_value);
|
|
if (iscsi_update_param_value(param,
|
|
&buf[0]) < 0)
|
|
return -1;
|
|
} else {
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
}
|
|
} else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
|
|
if (acceptor_value > proposer_value) {
|
|
sprintf(buf, "%u", acceptor_value);
|
|
if (iscsi_update_param_value(param,
|
|
&buf[0]) < 0)
|
|
return -1;
|
|
} else {
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
}
|
|
} else {
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
}
|
|
|
|
if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
|
|
struct iscsi_param *param_mxdsl;
|
|
unsigned long long tmp;
|
|
int rc;
|
|
|
|
rc = kstrtoull(param->value, 0, &tmp);
|
|
if (rc < 0)
|
|
return -1;
|
|
|
|
conn->conn_ops->MaxRecvDataSegmentLength = tmp;
|
|
pr_debug("Saving op->MaxRecvDataSegmentLength from"
|
|
" original initiator received value: %u\n",
|
|
conn->conn_ops->MaxRecvDataSegmentLength);
|
|
|
|
param_mxdsl = iscsi_find_param_from_key(
|
|
MAXXMITDATASEGMENTLENGTH,
|
|
conn->param_list);
|
|
if (!param_mxdsl)
|
|
return -1;
|
|
|
|
rc = iscsi_update_param_value(param,
|
|
param_mxdsl->value);
|
|
if (rc < 0)
|
|
return -1;
|
|
|
|
pr_debug("Updated %s to target MXDSL value: %s\n",
|
|
param->name, param->value);
|
|
}
|
|
|
|
} else if (IS_TYPE_NUMBER_RANGE(param)) {
|
|
negoitated_value = iscsi_get_value_from_number_range(
|
|
param, value);
|
|
if (!negoitated_value)
|
|
return -1;
|
|
if (iscsi_update_param_value(param, negoitated_value) < 0)
|
|
return -1;
|
|
} else if (IS_TYPE_VALUE_LIST(param)) {
|
|
negoitated_value = iscsi_check_valuelist_for_support(
|
|
param, value);
|
|
if (!negoitated_value) {
|
|
pr_err("Proposer's value list \"%s\" contains"
|
|
" no valid values from Acceptor's value list"
|
|
" \"%s\".\n", value, param->value);
|
|
return -1;
|
|
}
|
|
if (iscsi_update_param_value(param, negoitated_value) < 0)
|
|
return -1;
|
|
} else if (IS_PHASE_DECLARATIVE(param)) {
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
SET_PSTATE_REPLY_OPTIONAL(param);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_check_proposer_state(struct iscsi_param *param, char *value)
|
|
{
|
|
if (IS_PSTATE_RESPONSE_GOT(param)) {
|
|
pr_err("Received key \"%s\" twice, protocol error.\n",
|
|
param->name);
|
|
return -1;
|
|
}
|
|
|
|
if (IS_TYPE_NUMBER_RANGE(param)) {
|
|
u32 left_val = 0, right_val = 0, recieved_value = 0;
|
|
char *left_val_ptr = NULL, *right_val_ptr = NULL;
|
|
char *tilde_ptr = NULL;
|
|
|
|
if (!strcmp(value, IRRELEVANT) || !strcmp(value, REJECT)) {
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
tilde_ptr = strchr(value, '~');
|
|
if (tilde_ptr) {
|
|
pr_err("Illegal \"~\" in response for \"%s\".\n",
|
|
param->name);
|
|
return -1;
|
|
}
|
|
tilde_ptr = strchr(param->value, '~');
|
|
if (!tilde_ptr) {
|
|
pr_err("Unable to locate numerical range"
|
|
" indicator \"~\" for \"%s\".\n", param->name);
|
|
return -1;
|
|
}
|
|
*tilde_ptr = '\0';
|
|
|
|
left_val_ptr = param->value;
|
|
right_val_ptr = param->value + strlen(left_val_ptr) + 1;
|
|
left_val = simple_strtoul(left_val_ptr, NULL, 0);
|
|
right_val = simple_strtoul(right_val_ptr, NULL, 0);
|
|
recieved_value = simple_strtoul(value, NULL, 0);
|
|
|
|
*tilde_ptr = '~';
|
|
|
|
if ((recieved_value < left_val) ||
|
|
(recieved_value > right_val)) {
|
|
pr_err("Illegal response \"%s=%u\", value must"
|
|
" be between %u and %u.\n", param->name,
|
|
recieved_value, left_val, right_val);
|
|
return -1;
|
|
}
|
|
} else if (IS_TYPE_VALUE_LIST(param)) {
|
|
char *comma_ptr = NULL, *tmp_ptr = NULL;
|
|
|
|
comma_ptr = strchr(value, ',');
|
|
if (comma_ptr) {
|
|
pr_err("Illegal \",\" in response for \"%s\".\n",
|
|
param->name);
|
|
return -1;
|
|
}
|
|
|
|
tmp_ptr = iscsi_check_valuelist_for_support(param, value);
|
|
if (!tmp_ptr)
|
|
return -1;
|
|
}
|
|
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int iscsi_check_value(struct iscsi_param *param, char *value)
|
|
{
|
|
char *comma_ptr = NULL;
|
|
|
|
if (!strcmp(value, REJECT)) {
|
|
if (!strcmp(param->name, IFMARKINT) ||
|
|
!strcmp(param->name, OFMARKINT)) {
|
|
/*
|
|
* Reject is not fatal for [I,O]FMarkInt, and causes
|
|
* [I,O]FMarker to be reset to No. (See iSCSI v20 A.3.2)
|
|
*/
|
|
SET_PSTATE_REJECT(param);
|
|
return 0;
|
|
}
|
|
pr_err("Received %s=%s\n", param->name, value);
|
|
return -1;
|
|
}
|
|
if (!strcmp(value, IRRELEVANT)) {
|
|
pr_debug("Received %s=%s\n", param->name, value);
|
|
SET_PSTATE_IRRELEVANT(param);
|
|
return 0;
|
|
}
|
|
if (!strcmp(value, NOTUNDERSTOOD)) {
|
|
if (!IS_PSTATE_PROPOSER(param)) {
|
|
pr_err("Received illegal offer %s=%s\n",
|
|
param->name, value);
|
|
return -1;
|
|
}
|
|
|
|
/* #warning FIXME: Add check for X-ExtensionKey here */
|
|
pr_err("Standard iSCSI key \"%s\" cannot be answered"
|
|
" with \"%s\", protocol error.\n", param->name, value);
|
|
return -1;
|
|
}
|
|
|
|
do {
|
|
comma_ptr = NULL;
|
|
comma_ptr = strchr(value, ',');
|
|
|
|
if (comma_ptr && !IS_TYPE_VALUE_LIST(param)) {
|
|
pr_err("Detected value separator \",\", but"
|
|
" key \"%s\" does not allow a value list,"
|
|
" protocol error.\n", param->name);
|
|
return -1;
|
|
}
|
|
if (comma_ptr)
|
|
*comma_ptr = '\0';
|
|
|
|
if (strlen(value) > VALUE_MAXLEN) {
|
|
pr_err("Value for key \"%s\" exceeds %d,"
|
|
" protocol error.\n", param->name,
|
|
VALUE_MAXLEN);
|
|
return -1;
|
|
}
|
|
|
|
if (IS_TYPE_BOOL_AND(param) || IS_TYPE_BOOL_OR(param)) {
|
|
if (iscsi_check_boolean_value(param, value) < 0)
|
|
return -1;
|
|
} else if (IS_TYPE_NUMBER(param)) {
|
|
if (iscsi_check_numerical_value(param, value) < 0)
|
|
return -1;
|
|
} else if (IS_TYPE_NUMBER_RANGE(param)) {
|
|
if (iscsi_check_numerical_range_value(param, value) < 0)
|
|
return -1;
|
|
} else if (IS_TYPE_STRING(param) || IS_TYPE_VALUE_LIST(param)) {
|
|
if (iscsi_check_string_or_list_value(param, value) < 0)
|
|
return -1;
|
|
} else {
|
|
pr_err("Huh? 0x%02x\n", param->type);
|
|
return -1;
|
|
}
|
|
|
|
if (comma_ptr)
|
|
*comma_ptr++ = ',';
|
|
|
|
value = comma_ptr;
|
|
} while (value);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct iscsi_param *__iscsi_check_key(
|
|
char *key,
|
|
int sender,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_param *param;
|
|
|
|
if (strlen(key) > KEY_MAXLEN) {
|
|
pr_err("Length of key name \"%s\" exceeds %d.\n",
|
|
key, KEY_MAXLEN);
|
|
return NULL;
|
|
}
|
|
|
|
param = iscsi_find_param_from_key(key, param_list);
|
|
if (!param)
|
|
return NULL;
|
|
|
|
if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
|
|
pr_err("Key \"%s\" may not be sent to %s,"
|
|
" protocol error.\n", param->name,
|
|
(sender & SENDER_RECEIVER) ? "target" : "initiator");
|
|
return NULL;
|
|
}
|
|
|
|
if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
|
|
pr_err("Key \"%s\" may not be sent to %s,"
|
|
" protocol error.\n", param->name,
|
|
(sender & SENDER_RECEIVER) ? "initiator" : "target");
|
|
return NULL;
|
|
}
|
|
|
|
return param;
|
|
}
|
|
|
|
static struct iscsi_param *iscsi_check_key(
|
|
char *key,
|
|
int phase,
|
|
int sender,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
struct iscsi_param *param;
|
|
/*
|
|
* Key name length must not exceed 63 bytes. (See iSCSI v20 5.1)
|
|
*/
|
|
if (strlen(key) > KEY_MAXLEN) {
|
|
pr_err("Length of key name \"%s\" exceeds %d.\n",
|
|
key, KEY_MAXLEN);
|
|
return NULL;
|
|
}
|
|
|
|
param = iscsi_find_param_from_key(key, param_list);
|
|
if (!param)
|
|
return NULL;
|
|
|
|
if ((sender & SENDER_INITIATOR) && !IS_SENDER_INITIATOR(param)) {
|
|
pr_err("Key \"%s\" may not be sent to %s,"
|
|
" protocol error.\n", param->name,
|
|
(sender & SENDER_RECEIVER) ? "target" : "initiator");
|
|
return NULL;
|
|
}
|
|
if ((sender & SENDER_TARGET) && !IS_SENDER_TARGET(param)) {
|
|
pr_err("Key \"%s\" may not be sent to %s,"
|
|
" protocol error.\n", param->name,
|
|
(sender & SENDER_RECEIVER) ? "initiator" : "target");
|
|
return NULL;
|
|
}
|
|
|
|
if (IS_PSTATE_ACCEPTOR(param)) {
|
|
pr_err("Key \"%s\" received twice, protocol error.\n",
|
|
key);
|
|
return NULL;
|
|
}
|
|
|
|
if (!phase)
|
|
return param;
|
|
|
|
if (!(param->phase & phase)) {
|
|
pr_err("Key \"%s\" may not be negotiated during ",
|
|
param->name);
|
|
switch (phase) {
|
|
case PHASE_SECURITY:
|
|
pr_debug("Security phase.\n");
|
|
break;
|
|
case PHASE_OPERATIONAL:
|
|
pr_debug("Operational phase.\n");
|
|
break;
|
|
default:
|
|
pr_debug("Unknown phase.\n");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
return param;
|
|
}
|
|
|
|
static int iscsi_enforce_integrity_rules(
|
|
u8 phase,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
char *tmpptr;
|
|
u8 DataSequenceInOrder = 0;
|
|
u8 ErrorRecoveryLevel = 0, SessionType = 0;
|
|
u8 IFMarker = 0, OFMarker = 0;
|
|
u8 IFMarkInt_Reject = 1, OFMarkInt_Reject = 1;
|
|
u32 FirstBurstLength = 0, MaxBurstLength = 0;
|
|
struct iscsi_param *param = NULL;
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (!(param->phase & phase))
|
|
continue;
|
|
if (!strcmp(param->name, SESSIONTYPE))
|
|
if (!strcmp(param->value, NORMAL))
|
|
SessionType = 1;
|
|
if (!strcmp(param->name, ERRORRECOVERYLEVEL))
|
|
ErrorRecoveryLevel = simple_strtoul(param->value,
|
|
&tmpptr, 0);
|
|
if (!strcmp(param->name, DATASEQUENCEINORDER))
|
|
if (!strcmp(param->value, YES))
|
|
DataSequenceInOrder = 1;
|
|
if (!strcmp(param->name, MAXBURSTLENGTH))
|
|
MaxBurstLength = simple_strtoul(param->value,
|
|
&tmpptr, 0);
|
|
if (!strcmp(param->name, IFMARKER))
|
|
if (!strcmp(param->value, YES))
|
|
IFMarker = 1;
|
|
if (!strcmp(param->name, OFMARKER))
|
|
if (!strcmp(param->value, YES))
|
|
OFMarker = 1;
|
|
if (!strcmp(param->name, IFMARKINT))
|
|
if (!strcmp(param->value, REJECT))
|
|
IFMarkInt_Reject = 1;
|
|
if (!strcmp(param->name, OFMARKINT))
|
|
if (!strcmp(param->value, REJECT))
|
|
OFMarkInt_Reject = 1;
|
|
}
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (!(param->phase & phase))
|
|
continue;
|
|
if (!SessionType && (!IS_PSTATE_ACCEPTOR(param) &&
|
|
(strcmp(param->name, IFMARKER) &&
|
|
strcmp(param->name, OFMARKER) &&
|
|
strcmp(param->name, IFMARKINT) &&
|
|
strcmp(param->name, OFMARKINT))))
|
|
continue;
|
|
if (!strcmp(param->name, MAXOUTSTANDINGR2T) &&
|
|
DataSequenceInOrder && (ErrorRecoveryLevel > 0)) {
|
|
if (strcmp(param->value, "1")) {
|
|
if (iscsi_update_param_value(param, "1") < 0)
|
|
return -1;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
}
|
|
if (!strcmp(param->name, MAXCONNECTIONS) && !SessionType) {
|
|
if (strcmp(param->value, "1")) {
|
|
if (iscsi_update_param_value(param, "1") < 0)
|
|
return -1;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
}
|
|
if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
|
|
FirstBurstLength = simple_strtoul(param->value,
|
|
&tmpptr, 0);
|
|
if (FirstBurstLength > MaxBurstLength) {
|
|
char tmpbuf[11];
|
|
memset(tmpbuf, 0, sizeof(tmpbuf));
|
|
sprintf(tmpbuf, "%u", MaxBurstLength);
|
|
if (iscsi_update_param_value(param, tmpbuf))
|
|
return -1;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
}
|
|
if (!strcmp(param->name, IFMARKER) && IFMarkInt_Reject) {
|
|
if (iscsi_update_param_value(param, NO) < 0)
|
|
return -1;
|
|
IFMarker = 0;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
if (!strcmp(param->name, OFMARKER) && OFMarkInt_Reject) {
|
|
if (iscsi_update_param_value(param, NO) < 0)
|
|
return -1;
|
|
OFMarker = 0;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
if (!strcmp(param->name, IFMARKINT) && !IFMarker) {
|
|
if (!strcmp(param->value, REJECT))
|
|
continue;
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
if (iscsi_update_param_value(param, IRRELEVANT) < 0)
|
|
return -1;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
if (!strcmp(param->name, OFMARKINT) && !OFMarker) {
|
|
if (!strcmp(param->value, REJECT))
|
|
continue;
|
|
param->state &= ~PSTATE_NEGOTIATE;
|
|
if (iscsi_update_param_value(param, IRRELEVANT) < 0)
|
|
return -1;
|
|
pr_debug("Reset \"%s\" to \"%s\".\n",
|
|
param->name, param->value);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsi_decode_text_input(
|
|
u8 phase,
|
|
u8 sender,
|
|
char *textbuf,
|
|
u32 length,
|
|
struct iscsi_conn *conn)
|
|
{
|
|
struct iscsi_param_list *param_list = conn->param_list;
|
|
char *tmpbuf, *start = NULL, *end = NULL;
|
|
|
|
tmpbuf = kzalloc(length + 1, GFP_KERNEL);
|
|
if (!tmpbuf) {
|
|
pr_err("Unable to allocate %u + 1 bytes for tmpbuf.\n", length);
|
|
return -1;
|
|
}
|
|
|
|
memcpy(tmpbuf, textbuf, length);
|
|
tmpbuf[length] = '\0';
|
|
start = tmpbuf;
|
|
end = (start + length);
|
|
|
|
while (start < end) {
|
|
char *key, *value;
|
|
struct iscsi_param *param;
|
|
|
|
if (iscsi_extract_key_value(start, &key, &value) < 0) {
|
|
kfree(tmpbuf);
|
|
return -1;
|
|
}
|
|
|
|
pr_debug("Got key: %s=%s\n", key, value);
|
|
|
|
if (phase & PHASE_SECURITY) {
|
|
if (iscsi_check_for_auth_key(key) > 0) {
|
|
kfree(tmpbuf);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
param = iscsi_check_key(key, phase, sender, param_list);
|
|
if (!param) {
|
|
if (iscsi_add_notunderstood_response(key,
|
|
value, param_list) < 0) {
|
|
kfree(tmpbuf);
|
|
return -1;
|
|
}
|
|
start += strlen(key) + strlen(value) + 2;
|
|
continue;
|
|
}
|
|
if (iscsi_check_value(param, value) < 0) {
|
|
kfree(tmpbuf);
|
|
return -1;
|
|
}
|
|
|
|
start += strlen(key) + strlen(value) + 2;
|
|
|
|
if (IS_PSTATE_PROPOSER(param)) {
|
|
if (iscsi_check_proposer_state(param, value) < 0) {
|
|
kfree(tmpbuf);
|
|
return -1;
|
|
}
|
|
SET_PSTATE_RESPONSE_GOT(param);
|
|
} else {
|
|
if (iscsi_check_acceptor_state(param, value, conn) < 0) {
|
|
kfree(tmpbuf);
|
|
return -1;
|
|
}
|
|
SET_PSTATE_ACCEPTOR(param);
|
|
}
|
|
}
|
|
|
|
kfree(tmpbuf);
|
|
return 0;
|
|
}
|
|
|
|
int iscsi_encode_text_output(
|
|
u8 phase,
|
|
u8 sender,
|
|
char *textbuf,
|
|
u32 *length,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
char *output_buf = NULL;
|
|
struct iscsi_extra_response *er;
|
|
struct iscsi_param *param;
|
|
|
|
output_buf = textbuf + *length;
|
|
|
|
if (iscsi_enforce_integrity_rules(phase, param_list) < 0)
|
|
return -1;
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (!(param->sender & sender))
|
|
continue;
|
|
if (IS_PSTATE_ACCEPTOR(param) &&
|
|
!IS_PSTATE_RESPONSE_SENT(param) &&
|
|
!IS_PSTATE_REPLY_OPTIONAL(param) &&
|
|
(param->phase & phase)) {
|
|
*length += sprintf(output_buf, "%s=%s",
|
|
param->name, param->value);
|
|
*length += 1;
|
|
output_buf = textbuf + *length;
|
|
SET_PSTATE_RESPONSE_SENT(param);
|
|
pr_debug("Sending key: %s=%s\n",
|
|
param->name, param->value);
|
|
continue;
|
|
}
|
|
if (IS_PSTATE_NEGOTIATE(param) &&
|
|
!IS_PSTATE_ACCEPTOR(param) &&
|
|
!IS_PSTATE_PROPOSER(param) &&
|
|
(param->phase & phase)) {
|
|
*length += sprintf(output_buf, "%s=%s",
|
|
param->name, param->value);
|
|
*length += 1;
|
|
output_buf = textbuf + *length;
|
|
SET_PSTATE_PROPOSER(param);
|
|
iscsi_check_proposer_for_optional_reply(param);
|
|
pr_debug("Sending key: %s=%s\n",
|
|
param->name, param->value);
|
|
}
|
|
}
|
|
|
|
list_for_each_entry(er, ¶m_list->extra_response_list, er_list) {
|
|
*length += sprintf(output_buf, "%s=%s", er->key, er->value);
|
|
*length += 1;
|
|
output_buf = textbuf + *length;
|
|
pr_debug("Sending key: %s=%s\n", er->key, er->value);
|
|
}
|
|
iscsi_release_extra_responses(param_list);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iscsi_check_negotiated_keys(struct iscsi_param_list *param_list)
|
|
{
|
|
int ret = 0;
|
|
struct iscsi_param *param;
|
|
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (IS_PSTATE_NEGOTIATE(param) &&
|
|
IS_PSTATE_PROPOSER(param) &&
|
|
!IS_PSTATE_RESPONSE_GOT(param) &&
|
|
!IS_PSTATE_REPLY_OPTIONAL(param) &&
|
|
!IS_PHASE_DECLARATIVE(param)) {
|
|
pr_err("No response for proposed key \"%s\".\n",
|
|
param->name);
|
|
ret = -1;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int iscsi_change_param_value(
|
|
char *keyvalue,
|
|
struct iscsi_param_list *param_list,
|
|
int check_key)
|
|
{
|
|
char *key = NULL, *value = NULL;
|
|
struct iscsi_param *param;
|
|
int sender = 0;
|
|
|
|
if (iscsi_extract_key_value(keyvalue, &key, &value) < 0)
|
|
return -1;
|
|
|
|
if (!check_key) {
|
|
param = __iscsi_check_key(keyvalue, sender, param_list);
|
|
if (!param)
|
|
return -1;
|
|
} else {
|
|
param = iscsi_check_key(keyvalue, 0, sender, param_list);
|
|
if (!param)
|
|
return -1;
|
|
|
|
param->set_param = 1;
|
|
if (iscsi_check_value(param, value) < 0) {
|
|
param->set_param = 0;
|
|
return -1;
|
|
}
|
|
param->set_param = 0;
|
|
}
|
|
|
|
if (iscsi_update_param_value(param, value) < 0)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void iscsi_set_connection_parameters(
|
|
struct iscsi_conn_ops *ops,
|
|
struct iscsi_param_list *param_list)
|
|
{
|
|
char *tmpptr;
|
|
struct iscsi_param *param;
|
|
|
|
pr_debug("---------------------------------------------------"
|
|
"---------------\n");
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
/*
|
|
* Special case to set MAXXMITDATASEGMENTLENGTH from the
|
|
* target requested MaxRecvDataSegmentLength, even though
|
|
* this key is not sent over the wire.
|
|
*/
|
|
if (!strcmp(param->name, MAXXMITDATASEGMENTLENGTH)) {
|
|
ops->MaxXmitDataSegmentLength =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("MaxXmitDataSegmentLength: %s\n",
|
|
param->value);
|
|
}
|
|
|
|
if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
|
|
continue;
|
|
if (!strcmp(param->name, AUTHMETHOD)) {
|
|
pr_debug("AuthMethod: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, HEADERDIGEST)) {
|
|
ops->HeaderDigest = !strcmp(param->value, CRC32C);
|
|
pr_debug("HeaderDigest: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, DATADIGEST)) {
|
|
ops->DataDigest = !strcmp(param->value, CRC32C);
|
|
pr_debug("DataDigest: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, MAXRECVDATASEGMENTLENGTH)) {
|
|
/*
|
|
* At this point iscsi_check_acceptor_state() will have
|
|
* set ops->MaxRecvDataSegmentLength from the original
|
|
* initiator provided value.
|
|
*/
|
|
pr_debug("MaxRecvDataSegmentLength: %u\n",
|
|
ops->MaxRecvDataSegmentLength);
|
|
} else if (!strcmp(param->name, OFMARKER)) {
|
|
ops->OFMarker = !strcmp(param->value, YES);
|
|
pr_debug("OFMarker: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, IFMARKER)) {
|
|
ops->IFMarker = !strcmp(param->value, YES);
|
|
pr_debug("IFMarker: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, OFMARKINT)) {
|
|
ops->OFMarkInt =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("OFMarkInt: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, IFMARKINT)) {
|
|
ops->IFMarkInt =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("IFMarkInt: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, INITIATORRECVDATASEGMENTLENGTH)) {
|
|
ops->InitiatorRecvDataSegmentLength =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("InitiatorRecvDataSegmentLength: %s\n",
|
|
param->value);
|
|
ops->MaxRecvDataSegmentLength =
|
|
ops->InitiatorRecvDataSegmentLength;
|
|
pr_debug("Set MRDSL from InitiatorRecvDataSegmentLength\n");
|
|
} else if (!strcmp(param->name, TARGETRECVDATASEGMENTLENGTH)) {
|
|
ops->TargetRecvDataSegmentLength =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("TargetRecvDataSegmentLength: %s\n",
|
|
param->value);
|
|
ops->MaxXmitDataSegmentLength =
|
|
ops->TargetRecvDataSegmentLength;
|
|
pr_debug("Set MXDSL from TargetRecvDataSegmentLength\n");
|
|
}
|
|
}
|
|
pr_debug("----------------------------------------------------"
|
|
"--------------\n");
|
|
}
|
|
|
|
void iscsi_set_session_parameters(
|
|
struct iscsi_sess_ops *ops,
|
|
struct iscsi_param_list *param_list,
|
|
int leading)
|
|
{
|
|
char *tmpptr;
|
|
struct iscsi_param *param;
|
|
|
|
pr_debug("----------------------------------------------------"
|
|
"--------------\n");
|
|
list_for_each_entry(param, ¶m_list->param_list, p_list) {
|
|
if (!IS_PSTATE_ACCEPTOR(param) && !IS_PSTATE_PROPOSER(param))
|
|
continue;
|
|
if (!strcmp(param->name, INITIATORNAME)) {
|
|
if (!param->value)
|
|
continue;
|
|
if (leading)
|
|
snprintf(ops->InitiatorName,
|
|
sizeof(ops->InitiatorName),
|
|
"%s", param->value);
|
|
pr_debug("InitiatorName: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, INITIATORALIAS)) {
|
|
if (!param->value)
|
|
continue;
|
|
snprintf(ops->InitiatorAlias,
|
|
sizeof(ops->InitiatorAlias),
|
|
"%s", param->value);
|
|
pr_debug("InitiatorAlias: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, TARGETNAME)) {
|
|
if (!param->value)
|
|
continue;
|
|
if (leading)
|
|
snprintf(ops->TargetName,
|
|
sizeof(ops->TargetName),
|
|
"%s", param->value);
|
|
pr_debug("TargetName: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, TARGETALIAS)) {
|
|
if (!param->value)
|
|
continue;
|
|
snprintf(ops->TargetAlias, sizeof(ops->TargetAlias),
|
|
"%s", param->value);
|
|
pr_debug("TargetAlias: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, TARGETPORTALGROUPTAG)) {
|
|
ops->TargetPortalGroupTag =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("TargetPortalGroupTag: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, MAXCONNECTIONS)) {
|
|
ops->MaxConnections =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("MaxConnections: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, INITIALR2T)) {
|
|
ops->InitialR2T = !strcmp(param->value, YES);
|
|
pr_debug("InitialR2T: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, IMMEDIATEDATA)) {
|
|
ops->ImmediateData = !strcmp(param->value, YES);
|
|
pr_debug("ImmediateData: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, MAXBURSTLENGTH)) {
|
|
ops->MaxBurstLength =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("MaxBurstLength: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, FIRSTBURSTLENGTH)) {
|
|
ops->FirstBurstLength =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("FirstBurstLength: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, DEFAULTTIME2WAIT)) {
|
|
ops->DefaultTime2Wait =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("DefaultTime2Wait: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, DEFAULTTIME2RETAIN)) {
|
|
ops->DefaultTime2Retain =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("DefaultTime2Retain: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, MAXOUTSTANDINGR2T)) {
|
|
ops->MaxOutstandingR2T =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("MaxOutstandingR2T: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, DATAPDUINORDER)) {
|
|
ops->DataPDUInOrder = !strcmp(param->value, YES);
|
|
pr_debug("DataPDUInOrder: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, DATASEQUENCEINORDER)) {
|
|
ops->DataSequenceInOrder = !strcmp(param->value, YES);
|
|
pr_debug("DataSequenceInOrder: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, ERRORRECOVERYLEVEL)) {
|
|
ops->ErrorRecoveryLevel =
|
|
simple_strtoul(param->value, &tmpptr, 0);
|
|
pr_debug("ErrorRecoveryLevel: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, SESSIONTYPE)) {
|
|
ops->SessionType = !strcmp(param->value, DISCOVERY);
|
|
pr_debug("SessionType: %s\n",
|
|
param->value);
|
|
} else if (!strcmp(param->name, RDMAEXTENSIONS)) {
|
|
ops->RDMAExtensions = !strcmp(param->value, YES);
|
|
pr_debug("RDMAExtensions: %s\n",
|
|
param->value);
|
|
}
|
|
}
|
|
pr_debug("----------------------------------------------------"
|
|
"--------------\n");
|
|
|
|
}
|