Making use of libcdio function mmc_get_cmd_scsi_sense()
This commit is contained in:
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dd85e37ac8
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@ -1 +1 @@
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#define Cdrskin_timestamP "2009.12.19.142456"
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#define Cdrskin_timestamP "2009.12.24.170601"
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@ -217,13 +217,16 @@ dnl Check whether there is libcdio-devel and libcdio-runtime.
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dnl If not, erase this macro
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LIBCDIO_DEF="-DLibburn_use_libcdiO"
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dnl The empty yes case obviously causes -lacl to be linked
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AC_CHECK_HEADER(cdio/cdio.h, AC_CHECK_LIB(cdio, cdio_open, , LIBCDIO_DEF= ), LIBCDIO_DEF= )
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AC_CHECK_HEADER(cdio/cdio.h, AC_CHECK_LIB(cdio, mmc_last_cmd_sense, , LIBCDIO_DEF= ), LIBCDIO_DEF= )
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else
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LIBCDIO_DEF=
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fi
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if test x$LIBCDIO_DEF = x
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then
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LIBCDIO_DEF=
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if test x$enable_libcdio = xyes
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then
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echo "WARNING: could not enable use of libcdio as system adapter"
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fi
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else
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echo "enabled EXPERIMENTAL use of libcdio as system adapter"
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CFLAGS="$CFLAGS $LIBCDIO_DEF"
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@ -87,6 +87,14 @@ Send feedback to libburn-hackers@pykix.org .
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#include <cdio/mmc.h>
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/* The waiting time before eventually retrying a failed SCSI command.
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Before each retry wait Libburn_sg_linux_retry_incR longer than with
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the previous one.
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*/
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#define Libburn_sg_libcdio_retry_usleeP 100000
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#define Libburn_sg_libcdio_retry_incR 100000
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/** PORTING : ------ libburn portable headers and definitions ----- */
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#include "transport.h"
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@ -117,6 +125,18 @@ int burn_drive_is_banned(char *device_address);
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extern int burn_sg_log_scsi;
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/* ------------------------------------------------------------------------ */
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/* PORTING: Private definitions. Port only if needed by public functions. */
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/* (Public functions are listed below) */
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/* ------------------------------------------------------------------------ */
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/* Storage object is in libburn/init.c
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whether to strive for exclusive access to the drive
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*/
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extern int burn_sg_open_o_excl;
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/* ------------------------------------------------------------------------ */
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/* PORTING: Private functions. Port only if needed by public functions */
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/* (Public functions are listed below) */
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@ -232,7 +252,8 @@ int sg_give_next_adr(burn_drive_enumerator_t *idx,
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int scsi_enumerate_drives(void)
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{
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burn_drive_enumerator_t idx;
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int initialize = 1, ret;
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int initialize = 1, ret, i_bus_no = -1;
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int i_host_no = -1, i_channel_no = -1, i_target_no = -1, i_lun_no = -1;
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char buf[64];
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while(1) {
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@ -242,10 +263,10 @@ int scsi_enumerate_drives(void)
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break;
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if (burn_drive_is_banned(buf))
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continue;
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/* >>> try to obtain bus,host,channel,target,lun */;
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enumerate_common(buf, -1, -1, -1, -1, -1);
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sg_obtain_scsi_adr(buf, &i_bus_no, &i_host_no,
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&i_channel_no, &i_target_no, &i_lun_no);
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enumerate_common(buf, i_bus_no, i_host_no, i_channel_no,
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i_target_no, i_lun_no);
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}
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sg_give_next_adr(&idx, buf, sizeof(buf), -1);
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return 1;
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@ -272,12 +293,44 @@ int sg_drive_is_open(struct burn_drive * d)
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int sg_grab(struct burn_drive *d)
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{
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CdIo_t *p_cdio;
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char *am, *version_text;
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char msg[160];
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int cdio_ver = 82;
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if (d->p_cdio != NULL) {
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d->released = 0;
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return 1;
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}
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p_cdio = cdio_open(d->devname, DRIVER_DEVICE);
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sprintf(msg, "Using sg-libcdio-%d with libcdio version ",
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LIBCDIO_VERSION_NUM );
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/* >>> change this to #if LIBCDIO_VERSION_NUM < 83 */
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#ifdef LIBCDIO_HAS_VERSION_CALL
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cdio_ver = cdio_version(&version_text);
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#else
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LIBBURN_MISCONFIGURATION = 0;
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INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_cdio_version_dot_h_TOO_OLD__NEED_LIBCDIO_HAS_VERSION_CALL = 0;
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LIBBURN_MISCONFIGURATION_ = 0;
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#endif /* ! LIBCDIO_HAS_VERSION_CALL */
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strncat(msg, version_text, 80);
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libdax_msgs_submit(libdax_messenger, -1, 0x00000002,
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LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
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msg , 0, 0);
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if (cdio_ver < LIBCDIO_VERSION_NUM) {
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sprintf(msg,
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"libcdio TOO OLD: numeric version %d , need at least %d",
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cdio_ver, LIBCDIO_VERSION_NUM);
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libdax_msgs_submit(libdax_messenger, d->global_index,
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0x00020003,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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msg, 0, 0);
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return 0;
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}
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p_cdio = cdio_open_am(d->devname, DRIVER_DEVICE,
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burn_sg_open_o_excl ? "MMC_RDWR_EXCL" : "MMC_RDWR");
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if (p_cdio == NULL) {
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libdax_msgs_submit(libdax_messenger, d->global_index,
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@ -286,6 +339,16 @@ int sg_grab(struct burn_drive *d)
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"Could not grab drive", 0/*os_errno*/, 0);
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return 0;
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}
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am = (char *) cdio_get_arg(p_cdio, "access-mode");
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if (strncmp(am, "MMC_RDWR", 8) != 0) {
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libdax_msgs_submit(libdax_messenger, d->global_index,
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0x00020003,
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LIBDAX_MSGS_SEV_SORRY, LIBDAX_MSGS_PRIO_HIGH,
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"libcdio provides no MMC_RDWR access mode", 0, 0);
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cdio_destroy(p_cdio);
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return 0;
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}
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d->p_cdio = p_cdio;
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d->released = 0;
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return 1;
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@ -320,13 +383,15 @@ int sg_release(struct burn_drive *d)
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*/
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int sg_issue_command(struct burn_drive *d, struct command *c)
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{
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int i_status;
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int sense_valid = 0, i, usleep_time, timeout_ms;
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time_t start_time;
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driver_return_code_t i_status;
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unsigned int dxfer_len;
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static FILE *fp = NULL;
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mmc_cdb_t cdb = {{0, }};
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cdio_mmc_direction_t e_direction;
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CdIo_t *p_cdio;
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char msg[160];
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unsigned char sense[18], *sense_pt = NULL;
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c->error = 0;
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if (d->p_cdio == NULL) {
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@ -357,31 +422,35 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
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memset(c->page->data, 0, BUFFER_SIZE);
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} else {
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dxfer_len = 0;
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/* >>> remove this condition when #if LIBCDIO_VERSION_NUM < 83
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is in effect above*/
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#ifdef SCSI_MMC_HAS_DIR_NONE
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e_direction = SCSI_MMC_DATA_NONE;
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#else
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e_direction = SCSI_MMC_DATA_READ;
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#endif
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}
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/* >>> longer timeout , sg-linux has 200 s */
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/* retry-loop */
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start_time = time(NULL);
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timeout_ms = 200000;
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for(i = 0; ; i++) {
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/* >>> retry-loop */
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i_status = mmc_run_cmd(p_cdio, 10000, &cdb, e_direction,
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i_status = mmc_run_cmd(p_cdio, timeout_ms, &cdb, e_direction,
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dxfer_len, c->page->data);
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sense_valid = mmc_last_cmd_sense(p_cdio, &sense_pt);
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if (sense_valid >= 18)
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memcpy(sense, sense_pt, 18);
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if (sense_pt != NULL)
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free(sense_pt);
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if (i_status == 0)
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return 1;
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/* >>> One would need to get info about the nature of failure
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SCSI SK,ASC,ASCQ would be nice.
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One would need to distinguish between drive error and
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transport error.
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*/;
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/* This is for failure of the transport mechanism itself:
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/* Regrettably mmc_run_cmd() does not clearly distinguish between transport
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failure and SCSI error reply.
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This reaction here would be for transport failure:
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if (i_status != 0 && i_status != DRIVER_OP_ERROR) {
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libdax_msgs_submit(libdax_messenger,
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d->global_index, 0x0002010c,
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LIBDAX_MSGS_SEV_FATAL, LIBDAX_MSGS_PRIO_HIGH,
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@ -390,28 +459,57 @@ int sg_issue_command(struct burn_drive *d, struct command *c)
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sg_close_drive(d);
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d->released = 1;
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d->busy = BURN_DRIVE_IDLE;
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*/
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/* >>> end retry-loop */
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if (c->opcode[0] != 0x00) {
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sprintf(msg, "SCSI command %2.2Xh failed",
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(unsigned int) c->opcode[0]);
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libdax_msgs_submit(libdax_messenger,
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d->global_index, 0x0002010f,
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LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_HIGH,
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msg, errno, 0);
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}
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/* 2 04 00 LOGICAL UNIT NOT READY, CAUSE NOT REPORTABLE */
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c->sense[2] = 0x02;
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c->sense[12] = 0x04;
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c->sense[13] = 0x00;
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c->error = 1;
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return -1;
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}
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*/
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if (!sense_valid) {
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memset(sense, 0, 18);
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if (i_status != 0) { /* set dummy sense */
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/*LOGICAL UNIT NOT READY,CAUSE NOT REPORTABLE*/
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sense[2] = 0x02;
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sense[12] = 0x04;
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}
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} else
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sense[2] &= 15;
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if (i_status != 0 || (sense[2] || sense[12] || sense[13])) {
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if (!c->retry) {
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c->error = 1;
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goto ex;
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}
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switch (scsi_error(d, sense, 18)) {
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case RETRY:
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break;
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case FAIL:
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c->error = 1;
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goto ex;
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}
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/*
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Calming down retries and breaking up endless cycle
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*/
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usleep_time = Libburn_sg_libcdio_retry_usleeP +
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i * Libburn_sg_libcdio_retry_incR;
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if (time(NULL) + usleep_time / 1000000 - start_time >
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timeout_ms / 1000 + 1) {
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c->error = 1;
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goto ex;
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}
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usleep(usleep_time);
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} else
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break; /* retry-loop */
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} /* end of retry-loop */
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ex:;
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if (c->error)
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scsi_notify_error(d, c, sense, 18, 0);
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if (burn_sg_log_scsi & 3)
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/* >>> Need own duration time measurement. Then remove bit1 */
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scsi_log_err(c, fp, sense, 0, (c->error != 0) | 2);
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return 1;
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}
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/** Tries to obtain SCSI address parameters.
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@ -1679,6 +1679,9 @@ int sg_release(struct burn_drive *d)
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}
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#ifdef NIX
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/* <<< now in spc.c as scsi_log_err */
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/** logs outcome of a sg command. flag&1 causes an error message */
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static int sg_log_err(struct command *c, FILE *fp,
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sg_io_hdr_t *s,
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@ -1698,10 +1701,13 @@ static int sg_log_err(struct command *c, FILE *fp,
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}
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if (fp == stderr || !(burn_sg_log_scsi & 2))
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return 1;
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sg_log_err(c, stderr, s, flag);
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return 1;
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}
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#endif /* NIX */
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/** Sends a SCSI command to the drive, receives reply and evaluates wether
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the command succeeded or shall be retried or finally failed.
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@ -1876,7 +1882,8 @@ ex:;
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msg, 0, 0);
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}
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if (burn_sg_log_scsi & 3)
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sg_log_err(c, fp, &s, c->error != 0);
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/* <<< sg_log_err(c, fp, &s, c->error != 0); */
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scsi_log_err(c, fp, s.sbp, s.duration, c->error != 0);
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return 1;
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}
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@ -1438,3 +1438,37 @@ int scsi_log_cmd(struct command *c, void *fp_in, int flag)
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return 1;
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}
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/* ts A91221 (former sg_log_err ts A91108) */
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/** Logs outcome of a sg command.
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@param flag bit0 causes an error message
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bit1 do not print duration
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*/
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int scsi_log_err(struct command *c, void *fp_in, unsigned char sense[18],
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int duration, int flag)
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{
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char durtxt[20];
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FILE *fp = fp_in;
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if(fp != NULL && (fp == stderr || (burn_sg_log_scsi & 1))) {
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if(flag & 1) {
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durtxt[0] = 0;
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if (!(flag & 2))
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sprintf(durtxt, " (%6d ms)\n",duration);
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fprintf(fp, "+++ key=%X asc=%2.2Xh ascq=%2.2Xh%s\n",
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sense[2], sense[12], sense[13], durtxt);
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} else {
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scsi_show_cmd_reply(c, fp, 0);
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if (!(flag & 2))
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fprintf(fp,"%6d ms\n", duration);
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}
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if (burn_sg_log_scsi & 4)
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fflush(fp);
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}
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if (fp == stderr || !(burn_sg_log_scsi & 2))
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return 1;
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scsi_log_err(c, stderr, sense, duration, flag);
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return 1;
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}
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@ -69,5 +69,10 @@ int scsi_show_cmd_reply(struct command *c, void *fp, int flag);
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/** Logs command (before execution) */
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int scsi_log_cmd(struct command *c, void *fp, int flag);
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/* ts A91221 (former sg_log_err ts A91108) */
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/** Logs outcome of a sg command. */
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int scsi_log_err(struct command *c, void *fp, unsigned char sense[18],
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int duration, int flag);
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#endif /*__SPC*/
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Reference in New Issue
Block a user