2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005-2010 Daniel Braniss <danny@cs.huji.ac.il>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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30 | $Id: pdu.c,v 2.2 2006/12/01 09:11:56 danny Exp danny $
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <sys/types.h>
39 #include <sys/ioctl.h>
48 #include <dev/iscsi_initiator/iscsi.h>
49 #include "iscontrol.h"
51 static void pukeText(char *it, pdu_t *pp);
54 xmitpdu(isess_t *sess, pdu_t *pp)
56 if(ioctl(sess->fd, ISCSISEND, pp)) {
67 recvpdu(isess_t *sess, pdu_t *pp)
69 if(ioctl(sess->fd, ISCSIRECV, pp)) {
73 // XXX: return error if truncated via
82 sendPDU(isess_t *sess, pdu_t *pp, handler_t *hdlr)
89 pp->ahs_size = 8 * 1024;
90 if((pp->ahs_addr = malloc(pp->ahs_size)) == NULL) {
91 fprintf(stderr, "out of mem!");
95 if((res = recvpdu(sess, pp)) != 0) {
96 fprintf(stderr, "recvpdu failed\n");
107 #define FUDGE (512 * 8)
109 | We use the same memory for the response
110 | so make enough room ...
111 | XXX: must find a better way.
114 addText(pdu_t *pp, char *fmt, ...)
121 len = vasprintf(&str, fmt, ap) + 1;
122 if((pp->ds_len + len) > 0xffffff) {
123 printf("ds overflow\n");
128 if((pp->ds_len + len) > pp->ds_size) {
131 np = realloc(pp->ds_addr, pp->ds_size + len + FUDGE);
134 //XXX: out of memory!
138 pp->ds_size += len + FUDGE;
140 memcpy(pp->ds_addr + pp->ds_len, str, len);
153 bzero(&pp->ipdu, sizeof(union ipdu_u));
157 pp->ds_size = pp->ds_len = 0;
161 pukeText(char *it, pdu_t *pp)
168 ptr = (char *)pp->ds_addr;
169 cmd = pp->ipdu.bhs.opcode;
171 printf("%s: cmd=0x%x len=%d\n", it, cmd, (int)len);
173 printf("\t%s\n", ptr);