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Implemented finding matching /dev/sgN from /dev/srM or /dev/scdK

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This commit is contained in:
Thomas Schmitt
2006-09-22 19:29:11 +00:00
parent d0d0af1ba5
commit b67c555b30
3 changed files with 86 additions and 6 deletions
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34
libburn/sg.c
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@ -248,6 +248,9 @@ void sg_enumerate(void)
close(fd);
if (sid.scsi_type != TYPE_ROM)
continue;
/* <<< ts A60922 (use SCSI_IOCTL_GET_IDLUN on block devices)
fprintf(stderr,"libburn experimental: SCSI triple: %d,%d,%d\n",sid.host_no,sid.scsi_id,sid.lun);
*/
enumerate_common(fname);
}
@ -556,3 +559,34 @@ enum response scsi_error(struct burn_drive *d, unsigned char *sense,
burn_print(1, "key:0x%x, asc:0x%x, ascq:0x%x\n", key, asc, ascq);
return FAIL;
}
/* ts A60922 */
/** Try to obtain SCSI address parameters.
@return 1 is success , 0 is failure
*/
int sg_obtain_scsi_adr(char *path, int *host_no, int *channel_no,
int *target_no, int *lun_no)
{
int fd, ret;
struct my_scsi_idlun {
int x;
int host_unique_id;
};
struct my_scsi_idlun idlun;
fd = open(path, O_RDONLY | O_NONBLOCK);
if(fd < 0)
return 0;
/* http://www.tldp.org/HOWTO/SCSI-Generic-HOWTO/scsi_g_idlun.html */
ret= ioctl(fd, SCSI_IOCTL_GET_IDLUN, &idlun);
close(fd);
if(ret == -1)
return(0);
*host_no= (idlun.x>>24)&255;
*channel_no= (idlun.x>>16)&255;
*target_no= (idlun.x)&255;
*lun_no= (idlun.x>>8)&255;
return 1;
}