--- /dev/null
+/*
+ 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 <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <time.h>
+#include "iscsi.h"
+#include "iscsi-private.h"
+#include "dlinklist.h"
+
+
+struct iscsi_context *iscsi_create_context(const char *initiator_name)
+{
+ struct iscsi_context *iscsi;
+
+ iscsi = malloc(sizeof(struct iscsi_context));
+ if (iscsi == NULL) {
+ printf("Failed to allocate iscsi context\n");
+ return NULL;
+ }
+
+ bzero(iscsi, sizeof(struct iscsi_context));
+
+ iscsi->initiator_name = strdup(initiator_name);
+ if (iscsi->initiator_name == NULL) {
+ printf("Failed to allocate initiator name context\n");
+ free(iscsi);
+ return NULL;
+ }
+
+ iscsi->fd = -1;
+
+ /* use a "random" isid */
+ srandom(getpid() ^ time(NULL));
+ iscsi_set_random_isid(iscsi);
+
+ return iscsi;
+}
+
+int iscsi_set_random_isid(struct iscsi_context *iscsi)
+{
+ iscsi->isid[0] = 0x80;
+ iscsi->isid[1] = random()&0xff;
+ iscsi->isid[2] = random()&0xff;
+ iscsi->isid[3] = random()&0xff;
+ iscsi->isid[4] = 0;
+ iscsi->isid[5] = 0;
+
+ return 0;
+}
+
+int iscsi_set_alias(struct iscsi_context *iscsi, const char *alias)
+{
+ if (iscsi == NULL) {
+ printf("Context is NULL when adding alias\n");
+ return -1;
+ }
+ if (iscsi->is_loggedin != 0) {
+ printf("Already logged in when adding alias\n");
+ return -2;
+ }
+
+ if (iscsi->alias != NULL) {
+ free(discard_const(iscsi->alias));
+ iscsi->alias = NULL;
+ }
+
+ iscsi->alias = strdup(alias);
+ if (iscsi->alias == NULL) {
+ printf("Failed to allocate alias name\n");
+ return -3;
+ }
+
+ return 0;
+}
+
+int iscsi_set_targetname(struct iscsi_context *iscsi, const char *target_name)
+{
+ if (iscsi == NULL) {
+ printf("Context is NULL when adding targetname\n");
+ return -1;
+ }
+ if (iscsi->is_loggedin != 0) {
+ printf("Already logged in when adding targetname\n");
+ return -2;
+ }
+
+ if (iscsi->target_name != NULL) {
+ free(discard_const(iscsi->target_name));
+ iscsi->target_name= NULL;
+ }
+
+ iscsi->target_name = strdup(target_name);
+ if (iscsi->target_name == NULL) {
+ printf("Failed to allocate target name\n");
+ return -3;
+ }
+
+ return 0;
+}
+
+int iscsi_destroy_context(struct iscsi_context *iscsi)
+{
+ struct iscsi_pdu *pdu;
+
+ if (iscsi == NULL) {
+ return 0;
+ }
+ if (iscsi->initiator_name != NULL) {
+ free(discard_const(iscsi->initiator_name));
+ iscsi->initiator_name = NULL;
+ }
+ if (iscsi->alias != NULL) {
+ free(discard_const(iscsi->alias));
+ iscsi->alias = NULL;
+ }
+ if (iscsi->is_loggedin != 0) {
+ printf("deswtroying context while logged in\n");
+ }
+ if (iscsi->fd != -1) {
+ iscsi_disconnect(iscsi);
+ }
+
+ if (iscsi->inbuf != NULL) {
+ free(iscsi->inbuf);
+ iscsi->inbuf = NULL;
+ iscsi->insize = 0;
+ iscsi->inpos = 0;
+ }
+
+ while ((pdu = iscsi->outqueue)) {
+ DLIST_REMOVE(iscsi->outqueue, pdu);
+ pdu->callback(iscsi, ISCSI_STATUS_CANCELLED, NULL, pdu->private_data);
+ iscsi_free_pdu(iscsi, pdu);
+ }
+ while ((pdu = iscsi->waitpdu)) {
+ DLIST_REMOVE(iscsi->waitpdu, pdu);
+ pdu->callback(iscsi, ISCSI_STATUS_CANCELLED, NULL, pdu->private_data);
+ iscsi_free_pdu(iscsi, pdu);
+ }
+
+ free(iscsi);
+
+ return 0;
+}