275 lines
6.1 KiB
C
Executable File
275 lines
6.1 KiB
C
Executable File
/*
|
|
* scsi.c
|
|
* Iomega Zip/Jaz drive tool
|
|
* change protection mode and eject disk
|
|
*/
|
|
|
|
/* scis.c by Markus Gyger <mgyger@itr.ch> */
|
|
/* This code is based on ftp://gear.torque.net/pub/ziptool.c */
|
|
/* by Grant R. Guenther with the following copyright notice: */
|
|
|
|
/* (c) 1996 Grant R. Guenther, based on work of Itai Nahshon */
|
|
/* http://www.torque.net/ziptool.html */
|
|
|
|
|
|
/* A.K. Moved this from mzip.c to a separate file in order to share with
|
|
* plain_io.c */
|
|
|
|
#include "sysincludes.h"
|
|
#include "mtools.h"
|
|
#include "scsi.h"
|
|
|
|
#if defined OS_hpux
|
|
#include <sys/scsi.h>
|
|
#endif
|
|
|
|
#ifdef OS_solaris
|
|
#include <sys/scsi/scsi.h>
|
|
#endif /* solaris */
|
|
|
|
#ifdef OS_sunos
|
|
#include <scsi/generic/commands.h>
|
|
#include <scsi/impl/uscsi.h>
|
|
#endif /* sunos */
|
|
|
|
#ifdef sgi
|
|
#include <sys/dsreq.h>
|
|
#endif
|
|
|
|
#ifdef OS_linux
|
|
#define SCSI_IOCTL_SEND_COMMAND 1
|
|
struct scsi_ioctl_command {
|
|
int inlen;
|
|
int outlen;
|
|
char cmd[5008];
|
|
};
|
|
#endif
|
|
|
|
#ifdef _SCO_DS
|
|
#include <sys/scsicmd.h>
|
|
#endif
|
|
|
|
#if (defined(OS_freebsd)) && (__FreeBSD__ >= 2)
|
|
#include <camlib.h>
|
|
#endif
|
|
|
|
int scsi_max_length(void)
|
|
{
|
|
#ifdef OS_linux
|
|
return 8;
|
|
#else
|
|
return 255;
|
|
#endif
|
|
}
|
|
|
|
int scsi_open(const char *name, int flag, int mode, void **extra_data)
|
|
{
|
|
#if (defined(OS_freebsd)) && (__FreeBSD__ >= 2)
|
|
struct cam_device *cam_dev;
|
|
cam_dev = cam_open_device(name, O_RDWR);
|
|
*extra_data = (void *) cam_dev;
|
|
if (cam_dev)
|
|
return cam_dev->fd;
|
|
else
|
|
return -1;
|
|
#else
|
|
return open(name, O_RDONLY
|
|
#ifdef O_NDELAY
|
|
| O_NDELAY
|
|
#endif
|
|
/* O_RDONLY | dev->mode*/);
|
|
#endif
|
|
}
|
|
|
|
int scsi_cmd(int fd, unsigned char *cdb, int cmdlen, scsi_io_mode_t mode,
|
|
void *data, size_t len, void *extra_data)
|
|
{
|
|
#if defined OS_hpux
|
|
struct sctl_io sctl_io;
|
|
|
|
memset(&sctl_io, 0, sizeof sctl_io); /* clear reserved fields */
|
|
memcpy(sctl_io.cdb, cdb, cmdlen); /* copy command */
|
|
sctl_io.cdb_length = cmdlen; /* command length */
|
|
sctl_io.max_msecs = 2000; /* allow 2 seconds for cmd */
|
|
|
|
switch (mode) {
|
|
case SCSI_IO_READ:
|
|
sctl_io.flags = SCTL_READ;
|
|
sctl_io.data_length = len;
|
|
sctl_io.data = data;
|
|
break;
|
|
case SCSI_IO_WRITE:
|
|
sctl_io.flags = 0;
|
|
sctl_io.data_length = data ? len : 0;
|
|
sctl_io.data = len ? data : 0;
|
|
break;
|
|
}
|
|
|
|
if (ioctl(fd, SIOC_IO, &sctl_io) == -1) {
|
|
perror("scsi_io");
|
|
return -1;
|
|
}
|
|
|
|
return sctl_io.cdb_status;
|
|
|
|
#elif defined OS_sunos || defined OS_solaris
|
|
struct uscsi_cmd uscsi_cmd;
|
|
memset(&uscsi_cmd, 0, sizeof uscsi_cmd);
|
|
uscsi_cmd.uscsi_cdb = (char *)cdb;
|
|
uscsi_cmd.uscsi_cdblen = cmdlen;
|
|
#ifdef OS_solaris
|
|
uscsi_cmd.uscsi_timeout = 20; /* msec? */
|
|
#endif /* solaris */
|
|
|
|
uscsi_cmd.uscsi_buflen = (u_int)len;
|
|
uscsi_cmd.uscsi_bufaddr = data;
|
|
|
|
switch (mode) {
|
|
case SCSI_IO_READ:
|
|
uscsi_cmd.uscsi_flags = USCSI_READ;
|
|
break;
|
|
case SCSI_IO_WRITE:
|
|
uscsi_cmd.uscsi_flags = USCSI_WRITE;
|
|
break;
|
|
}
|
|
|
|
if (ioctl(fd, USCSICMD, &uscsi_cmd) == -1) {
|
|
perror("scsi_io");
|
|
return -1;
|
|
}
|
|
|
|
if(uscsi_cmd.uscsi_status) {
|
|
errno = 0;
|
|
fprintf(stderr,"scsi status=%x\n",
|
|
(unsigned short)uscsi_cmd.uscsi_status);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
|
|
#elif defined OS_linux
|
|
struct scsi_ioctl_command scsi_cmd;
|
|
|
|
|
|
memcpy(scsi_cmd.cmd, cdb, cmdlen); /* copy command */
|
|
|
|
switch (mode) {
|
|
case SCSI_IO_READ:
|
|
scsi_cmd.inlen = 0;
|
|
scsi_cmd.outlen = len;
|
|
break;
|
|
case SCSI_IO_WRITE:
|
|
scsi_cmd.inlen = len;
|
|
scsi_cmd.outlen = 0;
|
|
memcpy(scsi_cmd.cmd + cmdlen,data,len);
|
|
break;
|
|
}
|
|
|
|
if (ioctl(fd, SCSI_IOCTL_SEND_COMMAND, &scsi_cmd) < 0) {
|
|
perror("scsi_io");
|
|
return -1;
|
|
}
|
|
|
|
switch (mode) {
|
|
case SCSI_IO_READ:
|
|
memcpy(data, &scsi_cmd.cmd[0], len);
|
|
break;
|
|
case SCSI_IO_WRITE:
|
|
break;
|
|
}
|
|
|
|
return 0; /* where to get scsi status? */
|
|
|
|
#elif defined _SCO_DS
|
|
struct scsicmd scsi_cmd;
|
|
|
|
memset(scsi_cmd.cdb, 0, SCSICMDLEN); /* ensure zero pad */
|
|
memcpy(scsi_cmd.cdb, cdb, cmdlen);
|
|
scsi_cmd.cdb_len = cmdlen;
|
|
scsi_cmd.data_len = len;
|
|
scsi_cmd.data_ptr = data;
|
|
scsi_cmd.is_write = mode == SCSI_IO_WRITE;
|
|
if (ioctl(fd,SCSIUSERCMD,&scsi_cmd) == -1) {
|
|
perror("scsi_io");
|
|
printf("scsi status: host=%x; target=%x\n",
|
|
(unsigned)scsi_cmd.host_sts,(unsigned)scsi_cmd.target_sts);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
#elif defined sgi
|
|
struct dsreq scsi_cmd;
|
|
|
|
scsi_cmd.ds_cmdbuf = (char *)cdb;
|
|
scsi_cmd.ds_cmdlen = cmdlen;
|
|
scsi_cmd.ds_databuf = data;
|
|
scsi_cmd.ds_datalen = len;
|
|
switch (mode) {
|
|
case SCSI_IO_READ:
|
|
scsi_cmd.ds_flags = DSRQ_READ|DSRQ_SENSE;
|
|
break;
|
|
case SCSI_IO_WRITE:
|
|
scsi_cmd.ds_flags = DSRQ_WRITE|DSRQ_SENSE;
|
|
break;
|
|
}
|
|
scsi_cmd.ds_time = 10000;
|
|
scsi_cmd.ds_link = 0;
|
|
scsi_cmd.ds_synch =0;
|
|
scsi_cmd.ds_ret =0;
|
|
if (ioctl(fd, DS_ENTER, &scsi_cmd) == -1) {
|
|
perror("scsi_io");
|
|
return -1;
|
|
}
|
|
|
|
if(scsi_cmd.ds_status) {
|
|
errno = 0;
|
|
fprintf(stderr,"scsi status=%x\n",
|
|
(unsigned short)scsi_cmd.ds_status);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
#elif (defined OS_freebsd) && (__FreeBSD__ >= 2)
|
|
#define MSG_SIMPLE_Q_TAG 0x20 /* O/O */
|
|
union ccb *ccb;
|
|
int flags;
|
|
int r;
|
|
struct cam_device *cam_dev = (struct cam_device *) extra_data;
|
|
|
|
|
|
if (cam_dev==NULL || cam_dev->fd!=fd)
|
|
{
|
|
fprintf(stderr,"invalid file descriptor\n");
|
|
return -1;
|
|
}
|
|
ccb = cam_getccb(cam_dev);
|
|
|
|
bcopy(cdb, ccb->csio.cdb_io.cdb_bytes, cmdlen);
|
|
|
|
if (mode == SCSI_IO_READ)
|
|
flags = CAM_DIR_IN;
|
|
else if (data && len)
|
|
flags = CAM_DIR_OUT;
|
|
else
|
|
flags = CAM_DIR_NONE;
|
|
cam_fill_csio(&ccb->csio,
|
|
/* retry */ 1,
|
|
/* cbfcnp */ NULL,
|
|
flags,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/*data_ptr*/ len ? data : 0,
|
|
/*data_len */ data ? len : 0,
|
|
96,
|
|
cmdlen,
|
|
5000);
|
|
|
|
if (cam_send_ccb(cam_dev, ccb) < 0 ||
|
|
(ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
return -1;
|
|
}
|
|
return 0;
|
|
#else
|
|
fprintf(stderr, "scsi_io not implemented\n");
|
|
return -1;
|
|
#endif
|
|
}
|