/* * This file has been modified for the cdrkit suite. * * The behaviour and appearence of the program code below can differ to a major * extent from the version distributed by the original author(s). * * For details, see Changelog file distributed with the cdrkit package. If you * received this file from another source then ask the distributing person for * a log of modifications. * */ /* @(#)scsi_scan.c 1.19 04/04/16 Copyright 1997-2004 J. Schilling */ /* * Scan SCSI Bus. * Stolen from sformat. Need a more general form to * re-use it in sformat too. * * Copyright (c) 1997-2004 J. Schilling */ /* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with * this program; see the file COPYING. If not, write to the Free Software * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <mconfig.h> #include <stdio.h> #include <errno.h> #include <schily.h> #include <usal/usalcmd.h> #include <usal/scsidefs.h> #include <usal/scsireg.h> #include <usal/scsitransp.h> #include "scsi_scan.h" #include "wodim.h" #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <string.h> #include <ctype.h> #include <stdlib.h> static void print_product(FILE *f, struct scsi_inquiry *ip); int select_target(SCSI *usalp, FILE *f); #define MAXDEVCOUNT (256+26) extern BOOL check_linux_26(); static void print_product(FILE *f, struct scsi_inquiry *ip) { fprintf(f, "'%.8s' ", ip->vendor_info); fprintf(f, "'%.16s' ", ip->prod_ident); fprintf(f, "'%.4s' ", ip->prod_revision); if (ip->add_len < 31) { fprintf(f, "NON CCS "); } usal_fprintdev(f, ip); } SCSI * open_auto(int64_t need_size, int debug, int lverbose) { int res; SCSI * usalp = NULL; char errstr[80]; #ifdef __linux__ /* quick-and-dirty code but should do what is supposed to, more quickly */ /* * For Linux, try these strategies, in order: * 1. stat /dev/cdrw or /dev/dvdrw, depending on size we need. * 2. Read /proc/sys/dev/cdrom/info, look for a CD-R/DVD-R. * Will fail for kernel 2.4 or if cdrom module not loaded. * 3. stat /dev/cdrom, just assume that it can write media. An example for procfs file contents, beware of the TABs --- CD-ROM information, Id: cdrom.c 3.20 2003/12/17 drive name: hdc hda drive speed: 40 40 drive # of slots: 1 1 Can close tray: 1 1 Can open tray: 1 1 Can lock tray: 1 1 Can change speed: 1 1 Can select disk: 0 0 Can read multisession: 1 1 Can read MCN: 1 1 Reports media changed: 1 1 Can play audio: 1 1 Can write CD-R: 0 1 Can write CD-RW: 0 1 Can read DVD: 1 1 Can write DVD-R: 0 1 Can write DVD-RAM: 0 1 Can read MRW: 0 1 Can write MRW: 0 1 Can write RAM: 0 1 --- */ struct stat statbuf; /* XXX Good guess? BD-RE recorders may not support CDRW anymore... */ char *type="CD-R", *key="Can write CD-R:", *guessdev="/dev/cdrw", *result=NULL; FILE *fh; if( need_size > 360000*2048 ) { type="DVD-R"; guessdev="/dev/dvdrw"; key="Can write DVD-R:"; } if(need_size>10240) /* don't bother with weird numbers */ fprintf(stderr, "Looking for a %s drive to store %.2f MiB...\n", type, (float)need_size/1048576.0); if(0==stat(guessdev, &statbuf)) result=guessdev; else if(0!= (fh = fopen("/proc/sys/dev/cdrom/info", "r")) ) { /* ok, going the hard way */ char *nameline=NULL; static char buf[256]; int kn = strlen(key); buf[255]='\0'; while(fgets(buf, sizeof(buf), fh)) { if(0==strncmp(buf, "drive name:", 11)) nameline=strdup(buf); if(nameline && 0==strncmp(buf, key, kn)) { int p=kn; char *descptr=nameline+11; /* start at the known whitespace */ while(p<sizeof(buf) && buf[p]) { if(buf[p]=='1' || buf[p]=='0') { /* find the beginning of the descriptor */ for(;isspace((Uchar) *descptr);descptr++) ; } if(buf[p]=='1') { result=descptr-5; /* terminate on space/newline and stop there */ for(;*descptr;descptr++) { if(isspace((Uchar) *descptr)) *(descptr--)='\0'; } strncpy(result, "/dev/", 5); break; } else { /* no hit, move to after word ending */ for(; *descptr && ! isspace((Uchar) *descptr); descptr++) ; } p++; } } } fclose(fh); } if(result) fprintf(stderr, "Detected %s drive: %s\n", type, result); if (0==stat("/dev/cdrom", &statbuf)) { result = "/dev/cdrom"; fprintf(stderr, "Using /dev/cdrom of unknown capabilities\n"); } if(result) return usal_open(result, errstr, sizeof(errstr), debug, lverbose); #endif /* __linux__ */ usalp = usal_open(NULL, errstr, sizeof(errstr), debug, lverbose); if(!usalp) return NULL; res = list_devices(usalp, stdout, 1); if(res>0) return usalp; else usal_close(usalp); return NULL; } int list_devices(SCSI *usalp, FILE *f, int pickup_first) { int initiator; int i; int bus; int tgt; int lun = 0; BOOL have_tgt; int fd, ndevs=0; struct stat statbuf; char *lines[MAXDEVCOUNT]; char buf[256], perms[8]; usalp->silent++; /* XXX should be done before opening usal fprintf(stderr, "Beginning native device scan. This may take a while if devices are busy...\n"); */ for (bus = 0; bus < 1256; bus++) { usal_settarget(usalp, bus, 0, 0); if (!usal_havebus(usalp, bus)) continue; initiator = usal_initiator_id(usalp); //fprintf(f, "scsibus%d:\n", bus); for (tgt = 0; tgt < 16; tgt++) { usal_settarget(usalp, bus, tgt, lun); have_tgt = unit_ready(usalp) || usalp->scmd->error != SCG_FATAL; if (!have_tgt && tgt > 7) { if (usalp->scmd->ux_errno == EINVAL) break; continue; } fd=usal_fileno(usalp, bus, tgt, lun); strcpy(perms,"------"); if(fd>=0 && 0==fstat(fd, &statbuf)) { if(statbuf.st_mode&S_IRUSR) perms[0]= 'r'; if(statbuf.st_mode&S_IWUSR) perms[1]= 'w'; if(statbuf.st_mode&S_IRGRP) perms[2]= 'r'; if(statbuf.st_mode&S_IWGRP) perms[3]= 'w'; if(statbuf.st_mode&S_IROTH) perms[4]= 'r'; if(statbuf.st_mode&S_IWOTH) perms[5]= 'w'; } getdev(usalp, FALSE); if(usalp->inq->type == INQ_ROMD || usalp->inq->type == INQ_WORM) { char *p; for(p=usalp->inq->vendor_info + 7 ; p >= usalp->inq->vendor_info; p--) { if(isspace((unsigned char)*p)) *p='\0'; else break; } for(p=usalp->inq->prod_ident + 15 ; p >= usalp->inq->prod_ident; p--) { if(isspace((unsigned char)*p)) *p='\0'; else break; } snprintf(buf, sizeof(buf), "%2d dev='%s'\t%s : '%.8s' '%.16s'\n", ndevs, usal_natname(usalp, bus, tgt, lun), perms, usalp->inq->vendor_info, usalp->inq->prod_ident); /* alternative use, only select the first device */ if(pickup_first) { printf("Using drive: %s\n", usal_natname(usalp, bus, tgt, lun)); return 1; } lines[ndevs++]=strdup(buf); } } } usalp->silent--; /* should have been returned before if there was a recorder */ if(pickup_first) return 0; /* now start the output */ fprintf(stdout, "%s: Overview of accessible drives (%d found) :\n" "-------------------------------------------------------------------------\n", get_progname(), ndevs); for(i=0;i<ndevs;i++) { fprintf(stdout, "%s", lines[i]); free(lines[i]); } fprintf(stdout, "-------------------------------------------------------------------------\n"); return ndevs; } int select_target(SCSI *usalp, FILE *f) { int initiator; #ifdef FMT int cscsibus = usal_scsibus(usalp); int ctarget = usal_target(usalp); int clun = usal_lun(usalp); #endif int n; int low = -1; int high = -1; int amt = 0; int bus; int tgt; int lun = 0; BOOL have_tgt; usalp->silent++; for (bus = 0; bus < 1256; bus++) { usal_settarget(usalp, bus, 0, 0); if (!usal_havebus(usalp, bus)) continue; initiator = usal_initiator_id(usalp); fprintf(f, "scsibus%d:\n", bus); for (tgt = 0; tgt < 16; tgt++) { n = bus*100 + tgt; usal_settarget(usalp, bus, tgt, lun); have_tgt = unit_ready(usalp) || usalp->scmd->error != SCG_FATAL; if (!have_tgt && tgt > 7) { if (usalp->scmd->ux_errno == EINVAL) break; continue; } #ifdef FMT if (print_disknames(bus, tgt, -1) < 8) fprintf(f, "\t"); else fprintf(f, " "); #else fprintf(f, "\t"); #endif if (fprintf(f, "%d,%d,%d", bus, tgt, lun) < 8) fprintf(f, "\t"); else fprintf(f, " "); fprintf(f, "%3d) ", n); if (tgt == initiator) { fprintf(f, "HOST ADAPTOR\n"); continue; } if (!have_tgt) { /* * Hack: fd -> -2 means no access */ fprintf(f, "%c\n", usalp->fd == -2 ? '?':'*'); continue; } amt++; if (low < 0) low = n; high = n; getdev(usalp, FALSE); print_product(f, usalp->inq); } } usalp->silent--; if (low < 0) { errmsgno(EX_BAD, "No target found.\n"); return (0); } n = -1; #ifdef FMT getint("Select target", &n, low, high); bus = n/100; tgt = n%100; usal_settarget(usalp, bus, tgt, lun); return (select_unit(usalp)); usal_settarget(usalp, cscsibus, ctarget, clun); #endif return (amt); }