2 * Copyright (c) 2005-2010 Daniel Braniss <danny@cs.huji.ac.il>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 | $Id: pdu.c,v 2.2 2006/12/01 09:11:56 danny Exp danny $
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include <sys/types.h>
37 #include <sys/ioctl.h>
46 #include <dev/iscsi_initiator/iscsi.h>
47 #include "iscontrol.h"
49 static void pukeText(char *it, pdu_t *pp);
52 xmitpdu(isess_t *sess, pdu_t *pp)
54 if(ioctl(sess->fd, ISCSISEND, pp)) {
65 recvpdu(isess_t *sess, pdu_t *pp)
67 if(ioctl(sess->fd, ISCSIRECV, pp)) {
71 // XXX: return error if truncated via
80 sendPDU(isess_t *sess, pdu_t *pp, handler_t *hdlr)
87 pp->ahs_size = 8 * 1024;
88 if((pp->ahs_addr = malloc(pp->ahs_size)) == NULL) {
89 fprintf(stderr, "out of mem!");
93 if((res = recvpdu(sess, pp)) != 0) {
94 fprintf(stderr, "recvpdu failed\n");
105 #define FUDGE (512 * 8)
107 | We use the same memory for the response
108 | so make enough room ...
109 | XXX: must find a better way.
112 addText(pdu_t *pp, char *fmt, ...)
119 len = vasprintf(&str, fmt, ap) + 1;
120 if((pp->ds_len + len) > 0xffffff) {
121 printf("ds overflow\n");
126 if((pp->ds_len + len) > pp->ds_size) {
129 np = realloc(pp->ds_addr, pp->ds_size + len + FUDGE);
132 //XXX: out of memory!
136 pp->ds_size += len + FUDGE;
138 memcpy(pp->ds_addr + pp->ds_len, str, len);
151 bzero(&pp->ipdu, sizeof(union ipdu_u));
155 pp->ds_size = pp->ds_len = 0;
159 pukeText(char *it, pdu_t *pp)
166 ptr = (char *)pp->ds_addr;
167 cmd = pp->ipdu.bhs.opcode;
169 printf("%s: cmd=0x%x len=%d\n", it, cmd, (int)len);
171 printf("\t%s\n", ptr);