2 * Copyright (c) 2005-2008 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
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28 | $Id: pdu.c,v 2.2 2006/12/01 09:11:56 danny Exp danny $
31 #include <sys/types.h>
34 #include <sys/ioctl.h>
44 #include "iscontrol.h"
47 xmitpdu(isess_t *sess, pdu_t *pp)
49 if(ioctl(sess->fd, ISCSISEND, pp)) {
60 recvpdu(isess_t *sess, pdu_t *pp)
62 if(ioctl(sess->fd, ISCSIRECV, pp)) {
66 // XXX: return error if truncated via
75 sendPDU(isess_t *sess, pdu_t *pp, handler_t *hdlr)
82 pp->ahs_size = 8 * 1024;
83 if((pp->ahs = malloc(pp->ahs_size)) == NULL) {
84 fprintf(stderr, "out of mem!");
88 if((res = recvpdu(sess, pp)) != 0) {
89 fprintf(stderr, "recvpdu failed\n");
100 #define FUDGE (512 * 8)
102 | We use the same memory for the response
103 | so make enough room ...
104 | XXX: must find a better way.
107 addText(pdu_t *pp, char *fmt, ...)
114 len = vasprintf(&str, fmt, ap) + 1;
115 if((pp->ds_len + len) > 0xffffff) {
116 printf("ds overflow\n");
121 if((pp->ds_len + len) > pp->ds_size) {
124 np = realloc(pp->ds, pp->ds_size + len + FUDGE);
127 //XXX: out of memory!
131 pp->ds_size += len + FUDGE;
133 memcpy(pp->ds + pp->ds_len, str, len);
146 bzero(&pp->ipdu, sizeof(union ipdu_u));
150 pp->ds_size = pp->ds_len = 0;
154 pukeText(char *it, pdu_t *pp)
161 ptr = (char *)pp->ds;
162 cmd = pp->ipdu.bhs.opcode;
164 printf("%s: cmd=0x%x len=%d\n", it, cmd, (int)len);
166 printf("\t%s\n", ptr);