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@ -61,6 +61,34 @@ static int sgio_test(int fd)
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}
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/* ts A60925 : ticket 74 */
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int sg_close_drive_fd(char *fname, int driveno, int *fd, int sorry)
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{
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int ret, os_errno, sevno= LIBDAX_MSGS_SEV_DEBUG;
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char msg[4096+100];
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if(*fd < 0)
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return(0);
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ret = close(*fd);
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*fd = -1337;
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if(ret != -1)
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return 1;
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os_errno= errno;
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if (fname != NULL)
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sprintf(msg, "Encountered error when closing drive '%s'",
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fname);
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else
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sprintf(msg, "Encountered error when closing drive");
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if (sorry)
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sevno = LIBDAX_MSGS_SEV_SORRY;
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libdax_msgs_submit(libdax_messenger, driveno, 0x00020002,
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sevno, LIBDAX_MSGS_PRIO_HIGH, msg, os_errno, 0);
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return 0;
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}
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/* ts A60922 ticket 33 */
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/** Returns the next index number and the next enumerated drive address.
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@param idx An opaque number handle. Make no own theories about it.
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@ -185,17 +213,18 @@ void ata_enumerate(void)
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/* not atapi */
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if (!(tm.config & 0x8000) || (tm.config & 0x4000)) {
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close(fd);
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sg_close_drive_fd(fname, -1, &fd, 0);
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continue;
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}
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/* if SG_IO fails on an atapi device, we should stop trying to
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use hd* devices */
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if (sgio_test(fd) == -1) {
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close(fd);
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sg_close_drive_fd(fname, -1, &fd, 0);
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return;
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}
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close(fd);
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if (sg_close_drive_fd(fname, -1, &fd, 1) <= 0)
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continue;
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enumerate_common(fname, -1, -1, -1, -1);
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}
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}
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@ -254,13 +283,11 @@ void sg_enumerate(void)
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}
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/* found a drive */
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ioctl(fd, SG_GET_SCSI_ID, &sid);
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close(fd);
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if (sg_close_drive_fd(fname, -1, &fd,
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sid.scsi_type == TYPE_ROM ) <= 0)
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continue;
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if (sid.scsi_type != TYPE_ROM)
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continue;
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/* <<< ts A60922 (use SCSI_IOCTL_GET_IDLUN on block devices)
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fprintf(stderr,"libburn experimental: SCSI triple: %d,%d,%d\n",sid.host_no,sid.scsi_id,sid.lun);
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*/
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enumerate_common(fname, sid.host_no, sid.channel,
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sid.scsi_id, sid.lun);
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}
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@ -346,7 +373,7 @@ static void enumerate_common(char *fname, int host_no, int channel_no,
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*/
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int sg_grab(struct burn_drive *d)
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{
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int fd, count;
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int fd, count, os_errno= 0;
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/* ts A60813 */
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int open_mode = O_RDWR;
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@ -383,6 +410,7 @@ int sg_grab(struct burn_drive *d)
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mmc_function_spy("sg_grab ----------- opening");
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fd = open(d->devname, open_mode);
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os_errno = errno;
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} else
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fd= d->fd;
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@ -400,11 +428,17 @@ int sg_grab(struct burn_drive *d)
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d->released = 0;
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return 1;
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}
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burn_print(1, "could not acquire drive - already open\n");
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close(fd);
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libdax_msgs_submit(libdax_messenger, d->global_index,
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0x00020003,
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LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
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"Could not grab drive - already in use", 0, 0);
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sg_close_drive_fd(d->devname, d->global_index, &fd, 0);
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d->fd = -1337;
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return 0;
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}
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burn_print(1, "could not acquire drive\n");
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libdax_msgs_submit(libdax_messenger, d->global_index, 0x00020003,
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LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
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"Could not grab drive", os_errno, 0);
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return 0;
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}
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@ -428,8 +462,7 @@ int sg_release(struct burn_drive *d)
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<<< debug: for tracing calls which might use open drive fds */
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mmc_function_spy("sg_release ----------- closing");
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close(d->fd);
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d->fd = -1337;
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sg_close_drive_fd(d->devname, d->global_index, &(d->fd), 0);
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return 0;
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}
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@ -598,8 +631,8 @@ int sg_obtain_scsi_adr(char *path, int *host_no, int *channel_no,
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/* http://www.tldp.org/HOWTO/SCSI-Generic-HOWTO/scsi_g_idlun.html */
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ret= ioctl(fd, SCSI_IOCTL_GET_IDLUN, &idlun);
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close(fd);
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if(ret == -1)
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sg_close_drive_fd(path, -1, &fd, 0);
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if (ret == -1)
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return(0);
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*host_no= (idlun.x>>24)&255;
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*channel_no= (idlun.x>>16)&255;
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