/*
- * Copyright (c) 2005 Zmanda, Inc. All Rights Reserved.
+ * Copyright (c) 2005-2008 Zmanda Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 2.1 as
* along with this library; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
- * Contact information: Zmanda Inc., 505 N Mathlida Ave, Suite 120
- * Sunnyvale, CA 94085, USA, or: http://www.zmanda.com
+ * Contact information: Zmanda Inc., 465 S Mathlida Ave, Suite 300
+ * Sunnyvale, CA 94086, USA, or: http://www.zmanda.com
*/
#include <string.h> /* memset() */
/* This holds the total number of bytes written to the device,
modulus RESETOFS_THRESHOLD. */
int write_count;
+ char * device_filename;
+ gsize read_buffer_size;
};
/* Possible (abstracted) results from a system I/O operation. */
RESULT_MAX
} IoResult;
+/*
+ * Our device-specific properties. These are not static because they are
+ * accessed from the OS-specific tape-*.c files.
+ */
+DevicePropertyBase device_property_broken_gmt_online;
+DevicePropertyBase device_property_fsf;
+DevicePropertyBase device_property_bsf;
+DevicePropertyBase device_property_fsr;
+DevicePropertyBase device_property_bsr;
+DevicePropertyBase device_property_eom;
+DevicePropertyBase device_property_bsf_after_eom;
+DevicePropertyBase device_property_final_filemarks;
+
+void tape_device_register(void);
+
+#define tape_device_read_size(self) \
+ (((TapeDevice *)(self))->private->read_buffer_size? \
+ ((TapeDevice *)(self))->private->read_buffer_size : ((Device *)(self))->block_size)
+
/* here are local prototypes */
static void tape_device_init (TapeDevice * o);
static void tape_device_class_init (TapeDeviceClass * c);
-static gboolean tape_device_open_device (Device * self, char * device_name);
-static ReadLabelStatusFlags tape_device_read_label(Device * self);
-static gboolean tape_device_write_block(Device * self, guint size,
- gpointer data, gboolean short_block);
+static void tape_device_base_init (TapeDeviceClass * c);
+static gboolean tape_device_set_feature_property_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source);
+static gboolean tape_device_set_final_filemarks_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source);
+static gboolean tape_device_set_compression_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source);
+static gboolean tape_device_set_read_buffer_size_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source);
+static void tape_device_open_device (Device * self, char * device_name, char * device_type, char * device_node);
+static Device * tape_device_factory (char * device_name, char * device_type, char * device_node);
+static DeviceStatusFlags tape_device_read_label(Device * self);
+static gboolean tape_device_write_block(Device * self, guint size, gpointer data);
static int tape_device_read_block(Device * self, gpointer buf,
int * size_req);
static gboolean tape_device_start (Device * self, DeviceAccessMode mode,
char * label, char * timestamp);
-static gboolean tape_device_start_file (Device * self, const dumpfile_t * ji);
+static gboolean tape_device_start_file (Device * self, dumpfile_t * ji);
+static gboolean tape_device_finish_file (Device * self);
static dumpfile_t * tape_device_seek_file (Device * self, guint file);
static gboolean tape_device_seek_block (Device * self, guint64 block);
-static gboolean tape_device_property_get (Device * self, DevicePropertyId id,
- GValue * val);
-static gboolean tape_device_property_set (Device * self, DevicePropertyId id,
- GValue * val);
static gboolean tape_device_finish (Device * self);
static IoResult tape_device_robust_read (TapeDevice * self, void * buf,
int * count);
if G_UNLIKELY(type == 0) {
static const GTypeInfo info = {
sizeof (TapeDeviceClass),
- (GBaseInitFunc) NULL,
+ (GBaseInitFunc) tape_device_base_init,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) tape_device_class_init,
(GClassFinalizeFunc) NULL,
static void
tape_device_init (TapeDevice * self) {
- Device * device_self;
- DeviceProperty prop;
+ Device * d_self;
GValue response;
- device_self = (Device*)self;
+ d_self = DEVICE(self);
bzero(&response, sizeof(response));
- self->private = malloc(sizeof(TapeDevicePrivate));
+ self->private = g_new0(TapeDevicePrivate, 1);
/* Clear all fields. */
- self->min_block_size = self->fixed_block_size = 32768;
- self->max_block_size = self->read_block_size = MAX_TAPE_BLOCK_BYTES;
+ d_self->block_size = 32768;
+ d_self->min_block_size = 32768;
+ d_self->max_block_size = LARGEST_BLOCK_ESTIMATE;
+ self->broken_gmt_online = FALSE;
self->fd = -1;
-
- self->fsf = self->bsf = self->fsr = self->bsr = self->eom =
- self->bsf_after_eom = self->compression = self->first_file = 0;
+
+ /* set all of the feature properties to an unsure default of FALSE */
+ self->broken_gmt_online = FALSE;
+ self->fsf = FALSE;
+ self->bsf = FALSE;
+ self->fsr = FALSE;
+ self->bsr = FALSE;
+ self->eom = FALSE;
+ self->bsf_after_eom = FALSE;
+
+ g_value_init(&response, G_TYPE_BOOLEAN);
+ g_value_set_boolean(&response, FALSE);
+ device_set_simple_property(d_self, PROPERTY_BROKEN_GMT_ONLINE,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ device_set_simple_property(d_self, PROPERTY_FSF,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ device_set_simple_property(d_self, PROPERTY_BSF,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ device_set_simple_property(d_self, PROPERTY_FSR,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ device_set_simple_property(d_self, PROPERTY_BSR,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ device_set_simple_property(d_self, PROPERTY_EOM,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ device_set_simple_property(d_self, PROPERTY_BSF_AFTER_EOM,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ g_value_unset(&response);
+
self->final_filemarks = 2;
+ g_value_init(&response, G_TYPE_UINT);
+ g_value_set_uint(&response, self->final_filemarks);
+ device_set_simple_property(d_self, PROPERTY_FINAL_FILEMARKS,
+ &response, PROPERTY_SURETY_BAD, PROPERTY_SOURCE_DEFAULT);
+ g_value_unset(&response);
+
+ self->private->read_buffer_size = 0;
+ g_value_init(&response, G_TYPE_UINT);
+ g_value_set_uint(&response, self->private->read_buffer_size);
+ device_set_simple_property(d_self, PROPERTY_READ_BUFFER_SIZE,
+ &response, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DEFAULT);
+ g_value_unset(&response);
self->private->write_count = 0;
+ self->private->device_filename = NULL;
- /* Register properites */
- prop.base = &device_property_concurrency;
- prop.access = PROPERTY_ACCESS_GET_MASK;
+ /* Static properites */
g_value_init(&response, CONCURRENCY_PARADIGM_TYPE);
g_value_set_enum(&response, CONCURRENCY_PARADIGM_EXCLUSIVE);
- device_add_property(device_self, &prop, &response);
+ device_set_simple_property(d_self, PROPERTY_CONCURRENCY,
+ &response, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DETECTED);
g_value_unset(&response);
- prop.base = &device_property_streaming;
g_value_init(&response, STREAMING_REQUIREMENT_TYPE);
g_value_set_enum(&response, STREAMING_REQUIREMENT_DESIRED);
- device_add_property(device_self, &prop, &response);
+ device_set_simple_property(d_self, PROPERTY_STREAMING,
+ &response, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DETECTED);
g_value_unset(&response);
- prop.base = &device_property_appendable;
g_value_init(&response, G_TYPE_BOOLEAN);
- g_value_set_boolean(&response, TRUE);
- device_add_property(device_self, &prop, &response);
+ g_value_set_boolean(&response, FALSE);
+ device_set_simple_property(d_self, PROPERTY_APPENDABLE,
+ &response, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DETECTED);
+ g_value_unset(&response);
- prop.base = &device_property_partial_deletion;
+ g_value_init(&response, G_TYPE_BOOLEAN);
g_value_set_boolean(&response, FALSE);
- device_add_property(device_self, &prop, &response);
+ device_set_simple_property(d_self, PROPERTY_PARTIAL_DELETION,
+ &response, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DETECTED);
g_value_unset(&response);
- prop.base = &device_property_medium_access_type;
g_value_init(&response, MEDIA_ACCESS_MODE_TYPE);
g_value_set_enum(&response, MEDIA_ACCESS_MODE_READ_WRITE);
- device_add_property(device_self, &prop, &response);
+ device_set_simple_property(d_self, PROPERTY_MEDIUM_ACCESS_TYPE,
+ &response, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DETECTED);
g_value_unset(&response);
-
- prop.access = PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_MASK;
- prop.base = &device_property_compression;
- device_add_property(device_self, &prop, NULL);
-
- prop.access = PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START;
- prop.base = &device_property_min_block_size;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_max_block_size;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_block_size;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_fsf;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_bsf;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_fsr;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_bsr;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_eom;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_bsf_after_eom;
- device_add_property(device_self, &prop, NULL);
- prop.base = &device_property_final_filemarks;
- device_add_property(device_self, &prop, NULL);
-
- prop.access = PROPERTY_ACCESS_GET_MASK;
- prop.base = &device_property_canonical_name;
- device_add_property(device_self, &prop, NULL);
}
static void tape_device_finalize(GObject * obj_self) {
robust_close(self->fd);
self->fd = -1;
+ amfree(self->private->device_filename);
amfree(self->private);
}
device_class->read_block = tape_device_read_block;
device_class->start = tape_device_start;
device_class->start_file = tape_device_start_file;
+ device_class->finish_file = tape_device_finish_file;
device_class->seek_file = tape_device_seek_file;
device_class->seek_block = tape_device_seek_block;
- device_class->property_get = tape_device_property_get;
- device_class->property_set = tape_device_property_set;
device_class->finish = tape_device_finish;
g_object_class->finalize = tape_device_finalize;
}
+static void
+tape_device_base_init (TapeDeviceClass * c)
+{
+ DeviceClass *device_class = (DeviceClass *)c;
+
+ device_class_register_property(device_class, PROPERTY_BROKEN_GMT_ONLINE,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_FSF,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_BSF,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_FSR,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_BSR,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_EOM,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_BSF_AFTER_EOM,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_feature_property_fn);
+
+ device_class_register_property(device_class, PROPERTY_FINAL_FILEMARKS,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_final_filemarks_fn);
+
+ /* We don't (yet?) support reading the device's compression state, so not
+ * gettable. */
+ device_class_register_property(device_class, PROPERTY_COMPRESSION,
+ PROPERTY_ACCESS_SET_MASK,
+ NULL,
+ tape_device_set_compression_fn);
+
+ device_class_register_property(device_class, PROPERTY_READ_BUFFER_SIZE,
+ PROPERTY_ACCESS_GET_MASK | PROPERTY_ACCESS_SET_BEFORE_START,
+ device_simple_property_get_fn,
+ tape_device_set_read_buffer_size_fn);
+}
+
+static gboolean
+tape_device_set_feature_property_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source)
+{
+ TapeDevice *self = TAPE_DEVICE(p_self);
+ GValue old_val;
+ gboolean old_bool, new_bool;
+ PropertySurety old_surety;
+ PropertySource old_source;
+
+ new_bool = g_value_get_boolean(val);
+
+ /* get the old source and surety and see if we're willing to make this change */
+ bzero(&old_val, sizeof(old_val));
+ if (device_get_simple_property(p_self, base->ID, &old_val, &old_surety, &old_source)) {
+ old_bool = g_value_get_boolean(&old_val);
+
+ if (old_surety == PROPERTY_SURETY_GOOD && old_source == PROPERTY_SOURCE_DETECTED) {
+ if (new_bool != old_bool) {
+ device_set_error(p_self, vstrallocf(_(
+ "Value for property '%s' was autodetected and cannot be changed"),
+ base->name),
+ DEVICE_STATUS_DEVICE_ERROR);
+ return FALSE;
+ } else {
+ /* pretend we set it, but don't change surety/source */
+ return TRUE;
+ }
+ }
+ }
+
+ /* (note: PROPERTY_* are not constants, so we can't use switch) */
+ if (base->ID == PROPERTY_BROKEN_GMT_ONLINE)
+ self->broken_gmt_online = new_bool;
+ else if (base->ID == PROPERTY_FSF)
+ self->fsf = new_bool;
+ else if (base->ID == PROPERTY_BSF)
+ self->bsf = new_bool;
+ else if (base->ID == PROPERTY_FSR)
+ self->fsr = new_bool;
+ else if (base->ID == PROPERTY_BSR)
+ self->bsr = new_bool;
+ else if (base->ID == PROPERTY_EOM)
+ self->eom = new_bool;
+ else if (base->ID == PROPERTY_BSF_AFTER_EOM)
+ self->bsf_after_eom = new_bool;
+ else
+ return FALSE; /* shouldn't happen */
+
+ return device_simple_property_set_fn(p_self, base, val, surety, source);
+}
+
+static gboolean
+tape_device_set_final_filemarks_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source)
+{
+ TapeDevice *self = TAPE_DEVICE(p_self);
+ GValue old_val;
+ gboolean old_int, new_int;
+ PropertySurety old_surety;
+ PropertySource old_source;
+
+ new_int = g_value_get_uint(val);
+
+ /* get the old source and surety and see if we're willing to make this change */
+ bzero(&old_val, sizeof(old_val));
+ if (device_get_simple_property(p_self, base->ID, &old_val, &old_surety, &old_source)) {
+ old_int = g_value_get_uint(&old_val);
+
+ if (old_surety == PROPERTY_SURETY_GOOD && old_source == PROPERTY_SOURCE_DETECTED) {
+ if (new_int != old_int) {
+ device_set_error(p_self, vstrallocf(_(
+ "Value for property '%s' was autodetected and cannot be changed"),
+ base->name),
+ DEVICE_STATUS_DEVICE_ERROR);
+ return FALSE;
+ } else {
+ /* pretend we set it, but don't change surety/source */
+ return TRUE;
+ }
+ }
+ }
+
+ self->final_filemarks = new_int;
+
+ return device_simple_property_set_fn(p_self, base, val, surety, source);
+}
+
+static gboolean
+tape_device_set_compression_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source)
+{
+ TapeDevice *self = TAPE_DEVICE(p_self);
+ gboolean request = g_value_get_boolean(val);
+
+ /* We allow this property to be set at any time. This is mostly
+ * because setting compression is a hit-and-miss proposition
+ * at any time; some drives accept the mode setting but don't
+ * actually support compression, while others do support
+ * compression but do it via density settings or some other
+ * way. Set this property whenever you want, but all we'll do
+ * is report whether or not the ioctl succeeded. */
+ if (tape_setcompression(self->fd, request)) {
+ /* looks good .. let's start the device over, though */
+ device_clear_volume_details(p_self);
+ } else {
+ return FALSE;
+ }
+
+ return device_simple_property_set_fn(p_self, base, val, surety, source);
+}
+
+static gboolean
+tape_device_set_read_buffer_size_fn(Device *p_self, DevicePropertyBase *base,
+ GValue *val, PropertySurety surety, PropertySource source)
+{
+ TapeDevice *self = TAPE_DEVICE(p_self);
+ guint buffer_size = g_value_get_uint(val);
+
+ if (buffer_size != 0 &&
+ ((gsize)buffer_size < p_self->block_size ||
+ (gsize)buffer_size > p_self->max_block_size))
+ return FALSE;
+
+ self->private->read_buffer_size = buffer_size;
+
+ return device_simple_property_set_fn(p_self, base, val, surety, source);
+}
+
void tape_device_register(void) {
static const char * device_prefix_list[] = { "tape", NULL };
+
+ /* First register tape-specific properties */
+ device_property_fill_and_register(&device_property_broken_gmt_online,
+ G_TYPE_BOOLEAN, "broken_gmt_online",
+ "Does this drive support the GMT_ONLINE macro?");
+
+ device_property_fill_and_register(&device_property_fsf,
+ G_TYPE_BOOLEAN, "fsf",
+ "Does this drive support the MTFSF command?");
+
+ device_property_fill_and_register(&device_property_bsf,
+ G_TYPE_BOOLEAN, "bsf",
+ "Does this drive support the MTBSF command?" );
+
+ device_property_fill_and_register(&device_property_fsr,
+ G_TYPE_BOOLEAN, "fsr",
+ "Does this drive support the MTFSR command?");
+
+ device_property_fill_and_register(&device_property_bsr,
+ G_TYPE_BOOLEAN, "bsr",
+ "Does this drive support the MTBSR command?");
+
+ /* FIXME: Is this feature even useful? */
+ device_property_fill_and_register(&device_property_eom,
+ G_TYPE_BOOLEAN, "eom",
+ "Does this drive support the MTEOM command?");
+
+ device_property_fill_and_register(&device_property_bsf_after_eom,
+ G_TYPE_BOOLEAN,
+ "bsf_after_eom",
+ "Does this drive require an MTBSF after MTEOM in order to append?" );
+
+ device_property_fill_and_register(&device_property_final_filemarks,
+ G_TYPE_UINT, "final_filemarks",
+ "How many filemarks to write after the last tape file?" );
+
+ /* Then the device itself */
register_device(tape_device_factory, device_prefix_list);
}
-/* Open the tape device, trying various combinations of O_RDWR and
- O_NONBLOCK. Returns -1 and sets status_result for errors */
-static int try_open_tape_device(TapeDevice * self, char * device_filename,
- ReadLabelStatusFlags *status_result) {
+static int try_open_tape_device(TapeDevice * self, char * device_filename) {
int fd;
int save_errno;
- ReadLabelStatusFlags new_status;
- TapeCheckResult tcr;
- *status_result = READ_LABEL_STATUS_SUCCESS;
+ DeviceStatusFlags new_status;
-#ifdef O_NONBLOCK
- fd = robust_open(device_filename, O_RDWR | O_NONBLOCK, 0);
+ fd = robust_open(device_filename, O_RDWR,0);
save_errno = errno;
- if (fd < 0 && (save_errno == EWOULDBLOCK || save_errno == EINVAL)) {
- /* Maybe we don't support O_NONBLOCK for tape devices. */
- fd = robust_open(device_filename, O_RDWR, 0);
- save_errno = errno;
- }
-#else
- fd = robust_open(device_filename, O_RDWR);
- save_errno = errno;
-#endif
if (fd >= 0) {
self->write_open_errno = 0;
} else {
if (errno == EACCES || errno == EPERM) {
/* Device is write-protected. */
self->write_open_errno = errno;
-#ifdef O_NONBLOCK
- fd = robust_open(device_filename, O_RDONLY | O_NONBLOCK, 0);
- save_errno = errno;
- if (fd < 0 && (save_errno == EWOULDBLOCK || save_errno == EINVAL)) {
- fd = robust_open(device_filename, O_RDONLY, 0);
- save_errno = errno;
- }
-#else
- fd = robust_open(device_filename, O_RDONLY);
+ fd = robust_open(device_filename, O_RDONLY,0);
save_errno = errno;
-#endif
}
}
-#ifdef O_NONBLOCK
- /* Clear O_NONBLOCK for operations from now on. */
- if (fd >= 0)
- fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) & ~O_NONBLOCK);
- errno = save_errno;
- /* function continues after #endif */
-
-#endif /* O_NONBLOCK */
if (fd < 0) {
- g_fprintf(stderr, _("Can't open tape device %s: %s\n"),
- DEVICE(self)->device_name, strerror(errno));
- *status_result = READ_LABEL_STATUS_DEVICE_ERROR;
+ DeviceStatusFlags status_flag = 0;
+ if (errno == EBUSY)
+ status_flag = DEVICE_STATUS_DEVICE_BUSY;
+ else
+ status_flag = DEVICE_STATUS_DEVICE_ERROR;
+ device_set_error(DEVICE(self),
+ vstrallocf(_("Can't open tape device %s: %s"), self->private->device_filename, strerror(errno)),
+ status_flag);
return -1;
}
/* Check that this is actually a tape device. */
new_status = tape_is_tape_device(fd);
- if (new_status & (READ_LABEL_STATUS_DEVICE_ERROR | READ_LABEL_STATUS_VOLUME_MISSING)) {
- g_fprintf(stderr, _("File %s is not a tape device\n"),
- DEVICE(self)->device_name);
+ if (new_status & DEVICE_STATUS_DEVICE_ERROR) {
+ device_set_error(DEVICE(self),
+ vstrallocf(_("File %s is not a tape device"), self->private->device_filename),
+ new_status);
+ robust_close(fd);
+ return -1;
+ }
+ if (new_status & DEVICE_STATUS_VOLUME_MISSING) {
+ device_set_error(DEVICE(self),
+ vstrallocf(_("Tape device %s is not ready or is empty"), self->private->device_filename),
+ new_status);
robust_close(fd);
- *status_result = new_status;
return -1;
}
- tcr = tape_is_ready(fd);
- if (new_status == TAPE_CHECK_FAILURE) {
- g_fprintf(stderr, _("Tape device %s is not ready or is empty\n"),
- DEVICE(self)->device_name);
+ new_status = tape_is_ready(fd, self);
+ if (new_status & DEVICE_STATUS_VOLUME_MISSING) {
+ device_set_error(DEVICE(self),
+ vstrallocf(_("Tape device %s is empty"), self->private->device_filename),
+ new_status);
+ robust_close(fd);
+ return -1;
+ }
+ if (new_status != DEVICE_STATUS_SUCCESS) {
+ device_set_error(DEVICE(self),
+ vstrallocf(_("Tape device %s is not ready or is empty"), self->private->device_filename),
+ new_status);
robust_close(fd);
- *status_result = READ_LABEL_STATUS_DEVICE_ERROR;
return -1;
}
return fd;
}
-static gboolean
-tape_device_open_device (Device * d_self, char * device_name) {
+static void
+tape_device_open_device (Device * d_self, char * device_name G_GNUC_UNUSED,
+ char * device_type G_GNUC_UNUSED, char * device_node) {
TapeDevice * self;
self = TAPE_DEVICE(d_self);
- g_return_val_if_fail (self != NULL, FALSE);
- g_return_val_if_fail (device_name != NULL, FALSE);
+
+ self->fd = -1;
+ self->private->device_filename = stralloc(device_node);
/* Get tape drive/OS info */
- tape_device_discover_capabilities(self);
-
- /* And verify the above. */
- g_assert(feature_support_flags_is_valid(self->fsf));
- g_assert(feature_support_flags_is_valid(self->bsf));
- g_assert(feature_support_flags_is_valid(self->fsr));
- g_assert(feature_support_flags_is_valid(self->bsr));
- g_assert(feature_support_flags_is_valid(self->eom));
- g_assert(feature_support_flags_is_valid(self->bsf_after_eom));
- g_assert(self->final_filemarks == 1 ||
- self->final_filemarks == 2);
+ tape_device_detect_capabilities(self);
/* Chain up */
if (parent_class->open_device) {
- if (!(parent_class->open_device)(d_self, device_name)) {
- robust_close(self->fd);
- return FALSE;
- }
+ parent_class->open_device(d_self, device_node, device_type, device_node);
}
+}
- return TRUE;
+void
+tape_device_set_capabilities(TapeDevice *self,
+ gboolean fsf, PropertySurety fsf_surety, PropertySource fsf_source,
+ gboolean bsf, PropertySurety bsf_surety, PropertySource bsf_source,
+ gboolean fsr, PropertySurety fsr_surety, PropertySource fsr_source,
+ gboolean bsr, PropertySurety bsr_surety, PropertySource bsr_source,
+ gboolean eom, PropertySurety eom_surety, PropertySource eom_source,
+ gboolean bsf_after_eom, PropertySurety bae_surety, PropertySource bae_source,
+ guint final_filemarks, PropertySurety ff_surety, PropertySource ff_source)
+{
+ Device *dself = DEVICE(self);
+ GValue val;
+
+ /* this function is called by tape_device_detect_capabilities, and basically
+ * exists to take care of the GValue mechanics in one place */
+
+ g_assert(final_filemarks == 1 || final_filemarks == 2);
+
+ bzero(&val, sizeof(val));
+ g_value_init(&val, G_TYPE_BOOLEAN);
+
+ self->fsf = fsf;
+ g_value_set_boolean(&val, fsf);
+ device_set_simple_property(dself, PROPERTY_FSF, &val, fsf_surety, fsf_source);
+
+ self->bsf = bsf;
+ g_value_set_boolean(&val, bsf);
+ device_set_simple_property(dself, PROPERTY_BSF, &val, bsf_surety, bsf_source);
+
+ self->fsr = fsr;
+ g_value_set_boolean(&val, fsr);
+ device_set_simple_property(dself, PROPERTY_FSR, &val, fsr_surety, fsr_source);
+
+ self->bsr = bsr;
+ g_value_set_boolean(&val, bsr);
+ device_set_simple_property(dself, PROPERTY_BSR, &val, bsr_surety, bsr_source);
+
+ self->eom = eom;
+ g_value_set_boolean(&val, eom);
+ device_set_simple_property(dself, PROPERTY_EOM, &val, eom_surety, eom_source);
+
+ self->bsf_after_eom = bsf_after_eom;
+ g_value_set_boolean(&val, bsf_after_eom);
+ device_set_simple_property(dself, PROPERTY_BSF_AFTER_EOM, &val, bae_surety, bae_source);
+
+ g_value_unset(&val);
+ g_value_init(&val, G_TYPE_UINT);
+
+ self->final_filemarks = final_filemarks;
+ g_value_set_uint(&val, final_filemarks);
+ device_set_simple_property(dself, PROPERTY_FINAL_FILEMARKS, &val, ff_surety, ff_source);
+
+ g_value_unset(&val);
}
-static ReadLabelStatusFlags tape_device_read_label(Device * dself) {
+static DeviceStatusFlags tape_device_read_label(Device * dself) {
TapeDevice * self;
char * header_buffer;
int buffer_len;
IoResult result;
- dumpfile_t header;
+ dumpfile_t *header;
+ DeviceStatusFlags new_status;
self = TAPE_DEVICE(dself);
- g_return_val_if_fail(self != NULL, FALSE);
amfree(dself->volume_label);
amfree(dself->volume_time);
+ amfree(dself->volume_header);
+
+ if (device_in_error(self)) return dself->status;
+
+ header = dself->volume_header = g_new(dumpfile_t, 1);
+ fh_init(header);
if (self->fd == -1) {
- ReadLabelStatusFlags status;
- self->fd = try_open_tape_device(self, dself->device_name, &status);
+ self->fd = try_open_tape_device(self, self->private->device_filename);
+ /* if the open failed, then try_open_tape_device already set the
+ * approppriate error status */
if (self->fd == -1)
- return status;
+ return dself->status;
}
/* Rewind it. */
if (!tape_rewind(self->fd)) {
- g_fprintf(stderr, "Error rewinding device %s\n",
- dself->device_name);
- return (READ_LABEL_STATUS_DEVICE_ERROR |
- READ_LABEL_STATUS_VOLUME_ERROR);
- }
+ device_set_error(dself,
+ vstrallocf(_("Error rewinding device %s"), self->private->device_filename),
+ DEVICE_STATUS_DEVICE_ERROR
+ | DEVICE_STATUS_VOLUME_ERROR);
+ robust_close(self->fd);
+ return dself->status;
+ }
- buffer_len = self->read_block_size;
+ buffer_len = tape_device_read_size(self);
header_buffer = malloc(buffer_len);
result = tape_device_robust_read(self, header_buffer, &buffer_len);
free(header_buffer);
tape_rewind(self->fd);
/* I/O error. */
- g_fprintf(stderr, "Error reading Amanda header.\n");
if (result == RESULT_NO_DATA) {
- return (READ_LABEL_STATUS_VOLUME_ERROR |
- READ_LABEL_STATUS_VOLUME_UNLABELED);
+ new_status = (DEVICE_STATUS_VOLUME_ERROR |
+ DEVICE_STATUS_VOLUME_UNLABELED);
} else {
- return (READ_LABEL_STATUS_DEVICE_ERROR |
- READ_LABEL_STATUS_VOLUME_ERROR |
- READ_LABEL_STATUS_VOLUME_UNLABELED);
+ new_status = (DEVICE_STATUS_DEVICE_ERROR |
+ DEVICE_STATUS_VOLUME_ERROR |
+ DEVICE_STATUS_VOLUME_UNLABELED);
}
+ device_set_error(dself, stralloc(_("Error reading Amanda header")), new_status);
+ return dself->status;
}
- parse_file_header(header_buffer, &header, buffer_len);
+ parse_file_header(header_buffer, header, buffer_len);
amfree(header_buffer);
- if (header.type != F_TAPESTART) {
- return READ_LABEL_STATUS_VOLUME_UNLABELED;
- }
-
- dself->volume_label = g_strdup(header.name);
- dself->volume_time = g_strdup(header.datestamp);
-
- if (parent_class->read_label) {
- return parent_class->read_label(dself);
- } else {
- return READ_LABEL_STATUS_SUCCESS;
+ if (header->type != F_TAPESTART) {
+ device_set_error(dself,
+ stralloc(_("No tapestart header -- unlabeled device?")),
+ DEVICE_STATUS_VOLUME_UNLABELED);
+ return dself->status;
}
+
+ dself->volume_label = g_strdup(header->name);
+ dself->volume_time = g_strdup(header->datestamp);
+ /* dself->volume_header is already set */
+
+ device_set_error(dself, NULL, DEVICE_STATUS_SUCCESS);
+
+ return dself->status;
}
static gboolean
-tape_device_write_block(Device * pself, guint size,
- gpointer data, gboolean short_block) {
+tape_device_write_block(Device * pself, guint size, gpointer data) {
TapeDevice * self;
char *replacement_buffer = NULL;
IoResult result;
self = TAPE_DEVICE(pself);
- g_return_val_if_fail (self != NULL, FALSE);
- g_return_val_if_fail (self->fd >= 0, FALSE);
-
- if (short_block && self->min_block_size > size) {
- replacement_buffer = malloc(self->min_block_size);
+
+ g_assert(self->fd >= 0);
+ if (device_in_error(self)) return FALSE;
+
+ /* zero out to the end of a short block -- tape devices only write
+ * whole blocks. */
+ if (size < pself->block_size) {
+ replacement_buffer = malloc(pself->block_size);
memcpy(replacement_buffer, data, size);
- bzero(replacement_buffer+size, self->min_block_size-size);
-
+ bzero(replacement_buffer+size, pself->block_size-size);
+
data = replacement_buffer;
- size = self->min_block_size;
+ size = pself->block_size;
}
result = tape_device_robust_write(self, data, size);
- if (result == RESULT_SUCCESS) {
- if (parent_class->write_block) {
- (parent_class->write_block)(pself, size, data, short_block);
- }
- amfree(replacement_buffer);
- return TRUE;
- } else {
- amfree(replacement_buffer);
- return FALSE;
+ amfree(replacement_buffer);
+
+ switch (result) {
+ case RESULT_SUCCESS:
+ break;
+
+ case RESULT_NO_SPACE:
+ device_set_error(pself,
+ stralloc(_("No space left on device")),
+ DEVICE_STATUS_VOLUME_ERROR);
+ pself->is_eof = TRUE;
+ return FALSE;
+
+ default:
+ case RESULT_ERROR:
+ device_set_error(pself,
+ vstrallocf(_("Error writing block: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
+ return FALSE;
}
-
- g_assert_not_reached();
+
+ pself->block++;
+
+ return TRUE;
}
static int tape_device_read_block (Device * pself, gpointer buf,
TapeDevice * self;
int size;
IoResult result;
+ gssize read_block_size = tape_device_read_size(pself);
self = TAPE_DEVICE(pself);
- g_return_val_if_fail (self != NULL, -1);
- if (buf == NULL || *size_req < (int)self->read_block_size) {
+ g_assert(self->fd >= 0);
+ if (device_in_error(self)) return -1;
+
+ g_assert(read_block_size < INT_MAX); /* data type mismatch */
+ if (buf == NULL || *size_req < (int)read_block_size) {
/* Just a size query. */
- *size_req = self->read_block_size;
+ *size_req = (int)read_block_size;
return 0;
}
switch (result) {
case RESULT_SUCCESS:
*size_req = size;
+ pself->block++;
return size;
case RESULT_SMALL_BUFFER: {
- int new_size;
+ gsize new_size;
+ GValue newval;
+
/* If this happens, it means that we have:
* (next block size) > (buffer size) >= (read_block_size)
* The solution is to ask for an even bigger buffer. We also play
* some games to refrain from reading above the SCSI limit or from
- * integer overflow. */
+ * integer overflow. Note that not all devices will tell us about
+ * this problem -- some will just discard the "extra" data. */
new_size = MIN(INT_MAX/2 - 1, *size_req) * 2;
if (new_size > LARGEST_BLOCK_ESTIMATE &&
*size_req < LARGEST_BLOCK_ESTIMATE) {
new_size = LARGEST_BLOCK_ESTIMATE;
}
- if (new_size <= *size_req) {
- return -1;
- } else {
- *size_req = new_size;
- return 0;
- }
+ g_assert (new_size > (gsize)*size_req);
+
+ g_warning("Device %s indicated blocksize %zd was too small; using %zd.",
+ pself->device_name, (gsize)*size_req, new_size);
+ *size_req = (int)new_size;
+ self->private->read_buffer_size = new_size;
+
+ bzero(&newval, sizeof(newval));
+ g_value_init(&newval, G_TYPE_UINT);
+ g_value_set_uint(&newval, self->private->read_buffer_size);
+ device_set_simple_property(pself, PROPERTY_READ_BUFFER_SIZE,
+ &newval, PROPERTY_SURETY_GOOD, PROPERTY_SOURCE_DETECTED);
+ g_value_unset(&newval);
+
+ return 0;
}
case RESULT_NO_DATA:
pself->is_eof = TRUE;
pself->in_file = FALSE;
+ device_set_error(pself,
+ stralloc(_("EOF")),
+ DEVICE_STATUS_SUCCESS);
return -1;
default:
+ device_set_error(pself,
+ vstrallocf(_("Error reading from tape device: %s"), strerror(errno)),
+ DEVICE_STATUS_VOLUME_ERROR | DEVICE_STATUS_DEVICE_ERROR);
return -1;
}
&header_fits);
amfree(header);
g_assert(header_buf != NULL);
-
+
if (!header_fits) {
amfree(header_buf);
- g_fprintf(stderr, "Tapestart header won't fit in a single block!\n");
+ device_set_error(d_self,
+ stralloc(_("Tapestart header won't fit in a single block!")),
+ DEVICE_STATUS_DEVICE_ERROR);
return FALSE;
}
- g_assert(header_size >= (int)self->min_block_size);
+ g_assert(header_size >= (int)d_self->min_block_size);
result = tape_device_robust_write(self, header_buf, header_size);
+ if (result != RESULT_SUCCESS) {
+ device_set_error(d_self,
+ vstrallocf(_("Error writing tapestart header: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
+ amfree(header_buf);
+ return FALSE;
+ }
+
amfree(header_buf);
- return (result == RESULT_SUCCESS);
+
+ if (!tape_weof(self->fd, 1)) {
+ device_set_error(d_self,
+ vstrallocf(_("Error writing filemark: %s"),
+ strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR|DEVICE_STATUS_VOLUME_ERROR);
+ return FALSE;
+ }
+
+ return TRUE;
+
}
static gboolean
TapeDevice * self;
self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(self != NULL, FALSE);
+
+ if (device_in_error(self)) return FALSE;
if (self->fd == -1) {
- ReadLabelStatusFlags status;
- self->fd = try_open_tape_device(self, d_self->device_name, &status);
+ self->fd = try_open_tape_device(self, self->private->device_filename);
+ /* if the open failed, then try_open_tape_device already set the
+ * approppriate error status */
if (self->fd == -1)
- return FALSE; /* can't do anything with status here */
+ return FALSE;
}
if (mode != ACCESS_WRITE && d_self->volume_label == NULL) {
/* we need a labeled volume for APPEND and READ */
- if (tape_device_read_label(d_self) != READ_LABEL_STATUS_SUCCESS)
+ if (tape_device_read_label(d_self) != DEVICE_STATUS_SUCCESS)
return FALSE;
}
if (IS_WRITABLE_ACCESS_MODE(mode)) {
if (self->write_open_errno != 0) {
/* We tried and failed to open the device in write mode. */
- g_fprintf(stderr, "Can't open tape device %s for writing: %s\n",
- d_self->device_name, strerror(self->write_open_errno));
+ device_set_error(d_self,
+ vstrallocf(_("Can't open tape device %s for writing: %s"),
+ self->private->device_filename, strerror(self->write_open_errno)),
+ DEVICE_STATUS_DEVICE_ERROR | DEVICE_STATUS_VOLUME_ERROR);
return FALSE;
} else if (!tape_rewind(self->fd)) {
- g_fprintf(stderr, "Couldn't rewind device: %s\n",
- strerror(errno));
+ device_set_error(d_self,
+ vstrallocf(_("Couldn't rewind device: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
+ return FALSE;
}
}
/* Position the tape */
switch (mode) {
case ACCESS_APPEND:
- if (!tape_device_eod(self))
+ if (d_self->volume_label == NULL && device_read_label(d_self) != DEVICE_STATUS_SUCCESS) {
+ /* device_read_label already set our error message */
return FALSE;
- self->first_file = TRUE;
+ }
+
+ if (!tape_device_eod(self)) {
+ device_set_error(d_self,
+ vstrallocf(_("Couldn't seek to end of tape: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
+ return FALSE;
+ }
break;
case ACCESS_READ:
+ if (d_self->volume_label == NULL && device_read_label(d_self) != DEVICE_STATUS_SUCCESS) {
+ /* device_read_label already set our error message */
+ return FALSE;
+ }
+
if (!tape_rewind(self->fd)) {
- g_fprintf(stderr, "Error rewinding device %s\n",
- d_self->device_name);
+ device_set_error(d_self,
+ vstrallocf(_("Couldn't rewind device: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
return FALSE;
}
d_self->file = 0;
case ACCESS_WRITE:
if (!write_tapestart_header(self, label, timestamp)) {
+ /* write_tapestart_header already set the error status */
return FALSE;
}
- self->first_file = TRUE;
+
+ d_self->volume_label = newstralloc(d_self->volume_label, label);
+ d_self->volume_time = newstralloc(d_self->volume_time, timestamp);
+
+ /* unset the VOLUME_UNLABELED flag, if it was set */
+ device_set_error(d_self, NULL, DEVICE_STATUS_SUCCESS);
+ d_self->file = 0;
break;
default:
g_assert_not_reached();
}
- if (parent_class->start) {
- return parent_class->start(d_self, mode, label, timestamp);
- } else {
- return TRUE;
- }
+ return TRUE;
}
static gboolean tape_device_start_file(Device * d_self,
- const dumpfile_t * info) {
+ dumpfile_t * info) {
TapeDevice * self;
IoResult result;
char * amanda_header;
gboolean header_fits;
self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(self != NULL, FALSE);
- g_return_val_if_fail (self->fd >= 0, FALSE);
- if (!(d_self->access_mode == ACCESS_APPEND && self->first_file)) {
- if (!tape_weof(self->fd, 1)) {
- g_fprintf(stderr, "Error writing filemark: %s\n", strerror(errno));
- return FALSE;
- }
- }
+ g_assert(self->fd >= 0);
+ if (device_in_error(self)) return FALSE;
- self->first_file = FALSE;
+ /* set the blocksize in the header properly */
+ info->blocksize = d_self->block_size;
/* Make the Amanda header suitable for writing to the device. */
/* Then write the damn thing. */
amanda_header = device_build_amanda_header(d_self, info,
&header_size, &header_fits);
- g_return_val_if_fail(amanda_header != NULL, FALSE);
- g_return_val_if_fail(header_fits, FALSE);
+ if (!header_fits) {
+ device_set_error(d_self,
+ stralloc(_("Amanda file header won't fit in a single block!")),
+ DEVICE_STATUS_DEVICE_ERROR);
+ return FALSE;
+ }
result = tape_device_robust_write(self, amanda_header, header_size);
+ if (result != RESULT_SUCCESS) {
+ device_set_error(d_self,
+ vstrallocf(_("Error writing file header: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
+ amfree(amanda_header);
+ return FALSE;
+ }
amfree(amanda_header);
- if (result == RESULT_SUCCESS) {
- /* Chain up. */
- if (parent_class->start_file) {
- parent_class->start_file(d_self, info);
- }
- return TRUE;
- } else {
+
+ /* arrange the file numbers correctly */
+ d_self->in_file = TRUE;
+ d_self->block = 0;
+ if (d_self->file >= 0)
+ d_self->file ++;
+ return TRUE;
+}
+
+static gboolean
+tape_device_finish_file (Device * d_self) {
+ TapeDevice * self;
+
+ self = TAPE_DEVICE(d_self);
+ if (device_in_error(d_self)) return FALSE;
+
+ if (!tape_weof(self->fd, 1)) {
+ device_set_error(d_self,
+ vstrallocf(_("Error writing filemark: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR | DEVICE_STATUS_VOLUME_ERROR);
return FALSE;
}
+
+ d_self->in_file = FALSE;
+ return TRUE;
}
static dumpfile_t *
IoResult result;
self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(d_self != NULL, NULL);
- d_self->in_file = FALSE;
+ if (device_in_error(self)) return NULL;
difference = file - d_self->file;
difference --;
}
+ d_self->in_file = FALSE;
+ d_self->is_eof = FALSE;
+ d_self->block = 0;
+
if (difference > 0) {
/* Seeking forwards */
if (!tape_device_fsf(self, difference)) {
tape_rewind(self->fd);
+ device_set_error(d_self,
+ vstrallocf(_("Could not seek forward to file %d"), file),
+ DEVICE_STATUS_VOLUME_ERROR | DEVICE_STATUS_DEVICE_ERROR);
return NULL;
}
} else if (difference < 0) {
/* Seeking backwards */
if (!tape_device_bsf(self, -difference, d_self->file)) {
tape_rewind(self->fd);
+ device_set_error(d_self,
+ vstrallocf(_("Could not seek backward to file %d"), file),
+ DEVICE_STATUS_VOLUME_ERROR | DEVICE_STATUS_DEVICE_ERROR);
return NULL;
}
}
- buffer_len = self->read_block_size;
+ buffer_len = tape_device_read_size(d_self);
header_buffer = malloc(buffer_len);
d_self->is_eof = FALSE;
result = tape_device_robust_read(self, header_buffer, &buffer_len);
* filemark, which indicates end of tape. This should
* work even with QIC tapes on operating systems with
* proper support. */
+ d_self->file = file; /* other attributes are already correct */
return make_tapeend_header();
}
/* I/O error. */
- g_fprintf(stderr, "Error reading Amanda header.\n");
- return FALSE;
+ device_set_error(d_self,
+ stralloc(_("Error reading Amanda header")),
+ DEVICE_STATUS_DEVICE_ERROR | DEVICE_STATUS_VOLUME_ERROR);
+ return NULL;
}
- rval = malloc(sizeof(*rval));
+ rval = g_new(dumpfile_t, 1);
parse_file_header(header_buffer, rval, buffer_len);
amfree(header_buffer);
switch (rval->type) {
case F_DUMPFILE:
case F_CONT_DUMPFILE:
case F_SPLIT_DUMPFILE:
- d_self->in_file = TRUE;
- d_self->file = file;
- return rval;
+ break;
+
default:
tape_rewind(self->fd);
+ device_set_error(d_self,
+ stralloc(_("Invalid amanda header while reading file header")),
+ DEVICE_STATUS_VOLUME_ERROR);
amfree(rval);
return NULL;
}
+
+ d_self->in_file = TRUE;
+ d_self->file = file;
+
+ return rval;
}
static gboolean
int difference;
self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(d_self != NULL, FALSE);
+
+ if (device_in_error(self)) return FALSE;
difference = block - d_self->block;
if (difference > 0) {
- if (!tape_device_fsr(self, difference))
+ if (!tape_device_fsr(self, difference)) {
+ device_set_error(d_self,
+ vstrallocf(_("Could not seek forward to block %ju"), (uintmax_t)block),
+ DEVICE_STATUS_VOLUME_ERROR | DEVICE_STATUS_DEVICE_ERROR);
return FALSE;
+ }
} else if (difference < 0) {
- if (!tape_device_bsr(self, difference, d_self->file, d_self->block))
- return FALSE;
- }
-
- if (parent_class->seek_block) {
- return (parent_class->seek_block)(d_self, block);
- } else {
- return TRUE;
- }
-}
-
-/* Just checks that the flag is valid before setting it. */
-static gboolean get_feature_flag(GValue * val, FeatureSupportFlags f) {
- if (feature_support_flags_is_valid(f)) {
- g_value_set_flags(val, f);
- return TRUE;
- } else {
- return FALSE;
- }
-}
-
-static gboolean
-tape_device_property_get (Device * d_self, DevicePropertyId id, GValue * val) {
- TapeDevice * self;
- const DevicePropertyBase * base;
-
- self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(self != NULL, FALSE);
-
- base = device_property_get_by_id(id);
- g_return_val_if_fail(self != NULL, FALSE);
-
- g_value_unset_init(val, base->type);
-
- if (id == PROPERTY_COMPRESSION) {
- g_value_set_boolean(val, self->compression);
- return TRUE;
- } else if (id == PROPERTY_MIN_BLOCK_SIZE) {
- g_value_set_uint(val, self->min_block_size);
- return TRUE;
- } else if (id == PROPERTY_MAX_BLOCK_SIZE) {
- g_value_set_uint(val, self->max_block_size);
- return TRUE;
- } else if (id == PROPERTY_BLOCK_SIZE) {
- if (self->fixed_block_size == 0) {
- g_value_set_int(val, -1);
- } else {
- g_value_set_int(val, self->fixed_block_size);
- }
- return TRUE;
- } else if (id == PROPERTY_FSF) {
- return get_feature_flag(val, self->fsf);
- } else if (id == PROPERTY_BSF) {
- return get_feature_flag(val, self->bsf);
- } else if (id == PROPERTY_FSR) {
- return get_feature_flag(val, self->fsr);
- } else if (id == PROPERTY_BSR) {
- return get_feature_flag(val, self->bsr);
- } else if (id == PROPERTY_EOM) {
- return get_feature_flag(val, self->eom);
- } else if (id == PROPERTY_BSF_AFTER_EOM) {
- return get_feature_flag(val, self->bsf_after_eom);
- } else if (id == PROPERTY_FINAL_FILEMARKS) {
- g_value_set_uint(val, self->final_filemarks);
- return TRUE;
- } else {
- /* Chain up */
- if (parent_class->property_get) {
- return (parent_class->property_get)(d_self, id, val);
- } else {
+ if (!tape_device_bsr(self, difference, d_self->file, d_self->block)) {
+ device_set_error(d_self,
+ vstrallocf(_("Could not seek backward to block %ju"), (uintmax_t)block),
+ DEVICE_STATUS_VOLUME_ERROR | DEVICE_STATUS_DEVICE_ERROR);
return FALSE;
- }
+ }
}
- g_assert_not_reached();
-}
-
-/* We don't allow overriding of flags with _GOOD surety. That way, if
- e.g., a feature has no matching IOCTL on a given platform, we don't
- ever try to set it. */
-static gboolean flags_settable(FeatureSupportFlags request,
- FeatureSupportFlags existing) {
- if (!feature_support_flags_is_valid(request))
- return FALSE;
- else if (!feature_support_flags_is_valid(existing))
- return TRUE;
- else if (request == existing)
- return TRUE;
- else if (existing & FEATURE_SURETY_GOOD)
- return FALSE;
- else
- return TRUE;
+ d_self->block = block;
+ return TRUE;
}
-/* If the access listed is NULL, and the provided flags can override the
- existing ones, then do it and return TRUE. */
-static gboolean try_set_feature(DeviceAccessMode mode,
- FeatureSupportFlags request,
- FeatureSupportFlags * existing) {
- if (mode != ACCESS_NULL) {
- return FALSE;
- } else if (flags_settable(request, *existing)) {
- *existing = request;
- return TRUE;
- } else {
- return FALSE;
- }
-}
-
static gboolean
-tape_device_property_set (Device * d_self, DevicePropertyId id, GValue * val) {
+tape_device_finish (Device * d_self) {
TapeDevice * self;
- FeatureSupportFlags feature_request_flags = 0;
- const DevicePropertyBase * base;
self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(self != NULL, FALSE);
-
- base = device_property_get_by_id(id);
- g_return_val_if_fail(self != NULL, FALSE);
-
- g_return_val_if_fail(G_VALUE_HOLDS(val, base->type), FALSE);
-
- if (base->type == FEATURE_SUPPORT_FLAGS_TYPE) {
- feature_request_flags = g_value_get_flags(val);
- g_return_val_if_fail(
- feature_support_flags_is_valid(feature_request_flags), FALSE);
- }
-
- if (id == PROPERTY_COMPRESSION) {
- /* We allow this property to be set at any time. This is mostly
- * because setting compression is a hit-and-miss proposition
- * at any time; some drives accept the mode setting but don't
- * actually support compression, while others do support
- * compression but do it via density settings or some other
- * way. Set this property whenever you want, but all we'll do
- * is report whether or not the ioctl succeeded. */
- gboolean request = g_value_get_boolean(val);
- if (tape_setcompression(self->fd, request)) {
- self->compression = request;
- device_clear_volume_details(d_self);
- return TRUE;
- } else {
- return FALSE;
- }
- } else if (id == PROPERTY_MIN_BLOCK_SIZE) {
- if (d_self->access_mode != ACCESS_NULL)
- return FALSE;
- self->min_block_size = g_value_get_uint(val);
- device_clear_volume_details(d_self);
- return TRUE;
- } else if (id == PROPERTY_MAX_BLOCK_SIZE) {
- if (d_self->access_mode != ACCESS_NULL)
- return FALSE;
- self->max_block_size = g_value_get_uint(val);
- device_clear_volume_details(d_self);
- return TRUE;
- } else if (id == PROPERTY_BLOCK_SIZE) {
- if (d_self->access_mode != ACCESS_NULL)
- return FALSE;
-
- self->fixed_block_size = g_value_get_int(val);
- device_clear_volume_details(d_self);
- return TRUE;
- } else if (id == PROPERTY_READ_BUFFER_SIZE) {
- if (d_self->access_mode != ACCESS_NULL)
- return FALSE;
- self->read_block_size = g_value_get_uint(val);
- device_clear_volume_details(d_self);
- return TRUE;
- } else if (id == PROPERTY_FSF) {
- return try_set_feature(d_self->access_mode,
- feature_request_flags,
- &(self->fsf));
- } else if (id == PROPERTY_BSF) {
- return try_set_feature(d_self->access_mode,
- feature_request_flags,
- &(self->bsf));
- } else if (id == PROPERTY_FSR) {
- return try_set_feature(d_self->access_mode,
- feature_request_flags,
- &(self->fsr));
- } else if (id == PROPERTY_BSR) {
- return try_set_feature(d_self->access_mode,
- feature_request_flags,
- &(self->bsr));
- } else if (id == PROPERTY_EOM) {
- /* Setting this to disabled also clears BSF after EOM. */
- if (try_set_feature(d_self->access_mode,
- feature_request_flags,
- &(self->eom))) {
- feature_request_flags &= ~FEATURE_SUPPORT_FLAGS_STATUS_MASK;
- feature_request_flags |= FEATURE_STATUS_DISABLED;
- self->bsf_after_eom = feature_request_flags;
- return TRUE;
- } else {
- return FALSE;
- }
- } else if (id == PROPERTY_BSF_AFTER_EOM) {
- /* You can only set this if EOM is enabled. */
- if (self->bsf | FEATURE_STATUS_DISABLED)
- return FALSE;
- else
- return try_set_feature(d_self->access_mode,
- feature_request_flags,
- &(self->bsf_after_eom));
- } else if (id == PROPERTY_FINAL_FILEMARKS) {
- guint request = g_value_get_uint(val);
- if (request == 1 || request == 2) {
- self->final_filemarks = request;
- return TRUE;
- } else {
- return FALSE;
- }
- } else {
- /* Chain up */
- if (parent_class->property_set) {
- return (parent_class->property_set)(d_self, id, val);
- } else {
- return FALSE;
- }
- }
- g_assert_not_reached();
-}
-
-static gboolean
-tape_device_finish (Device * d_self) {
- TapeDevice * self;
+ if (device_in_error(self)) return FALSE;
- self = TAPE_DEVICE(d_self);
- g_return_val_if_fail(self != NULL, FALSE);
+ if (d_self->access_mode == ACCESS_NULL)
+ return TRUE;
/* Polish off this file, if relevant. */
if (d_self->in_file && IS_WRITABLE_ACCESS_MODE(d_self->access_mode)) {
/* Write an extra filemark, if needed. The OS will give us one for
sure. */
+ /* device_finish_file already wrote one for us */
+ /*
if (self->final_filemarks > 1 &&
IS_WRITABLE_ACCESS_MODE(d_self->access_mode)) {
if (!tape_weof(self->fd, 1)) {
- g_fprintf(stderr, "Error writing final filemark: %s\n",
- strerror(errno));
+ device_set_error(d_self,
+ vstrallocf(_("Error writing final filemark: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR | DEVICE_STATUS_VOLUME_ERROR);
return FALSE;
}
}
+ */
/* Rewind. */
if (!tape_rewind(self->fd)) {
- g_fprintf(stderr, "Error rewinding tape: %s\n", strerror(errno));
+ device_set_error(d_self,
+ vstrallocf(_("Couldn't rewind device: %s"), strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR);
return FALSE;
}
d_self->access_mode = ACCESS_NULL;
- if (parent_class->finish) {
- return (parent_class->finish)(d_self);
- } else {
- return TRUE;
- }
-
+ return TRUE;
}
/* Works just like read(), except for the following:
int result;
d_self = (Device*)self;
- g_return_val_if_fail(self != NULL, RESULT_ERROR);
- g_return_val_if_fail(*count >= 0, RESULT_ERROR);
+
/* Callers should ensure this. */
- g_assert((guint)(*count) <= self->read_block_size);
+ g_assert(*count >= 0);
for (;;) {
result = read(self->fd, buf, *count);
) {
/* Interrupted system call */
continue;
- } else if ((self->fixed_block_size == 0) &&
- (0
+ } else if ((0
#ifdef ENOMEM
|| errno == ENOMEM /* bad user-space buffer */
#endif
/* Buffer too small. */
return RESULT_SMALL_BUFFER;
} else {
- g_fprintf(stderr, "Error reading %d bytes from %s: %s\n",
- *count, d_self->device_name, strerror(errno));
+ device_set_error(d_self,
+ vstrallocf(_("Error reading %d bytes from %s: %s"),
+ *count, self->private->device_filename, strerror(errno)),
+ DEVICE_STATUS_DEVICE_ERROR | DEVICE_STATUS_VOLUME_ERROR);
return RESULT_ERROR;
}
}
static void check_resetofs(TapeDevice * self G_GNUC_UNUSED,
int count G_GNUC_UNUSED) {
#ifdef NEED_RESETOFS
+ Device * d_self;
int result;
+ d_self = (Device*)self;
+
self->private->write_count += count;
if (self->private->write_count < RESETOFS_THRESHOLD) {
return;
result = lseek(self->fd, 0, SEEK_SET);
if (result < 0) {
- g_fprintf(stderr,
- "Warning: lseek() failed during kernel 2GB workaround.\n");
+ g_warning(_("lseek() failed during kernel 2GB workaround: %s"),
+ strerror(errno));
}
#endif
}
Device * d_self;
int result;
- g_return_val_if_fail(self != NULL, RESULT_ERROR);
d_self = (Device*)self;
check_resetofs(self, count);
return RESULT_SUCCESS;
} else if (result >= 0) {
/* write() returned a short count. This should not happen. */
- g_fprintf(stderr,
- "Mysterious short write on tape device: Tried %d, got %d.\n",
- count, result);
+ device_set_error(d_self,
+ vstrallocf(_("Mysterious short write on tape device: Tried %d, got %d"),
+ count, result),
+ DEVICE_STATUS_DEVICE_ERROR);
return RESULT_ERROR;
} else if (0
#ifdef EAGAIN
/* Probably EOT. Print a message if we got EIO. */
#ifdef EIO
if (errno == EIO) {
- g_fprintf(stderr, "Got EIO on %s, assuming end of tape.\n",
- d_self->device_name);
+ g_warning(_("Got EIO on %s, assuming end of tape"),
+ self->private->device_filename);
}
#endif
return RESULT_NO_SPACE;
} else {
/* WTF */
- g_fprintf(stderr,
- "Kernel gave unexpected write() result of \"%s\" on device %s.\n",
- strerror(errno), d_self->device_name);
+ device_set_error(d_self,
+ vstrallocf(_("Kernel gave unexpected write() result of \"%s\" on device %s"),
+ strerror(errno), self->private->device_filename),
+ DEVICE_STATUS_DEVICE_ERROR);
return RESULT_ERROR;
}
}
actually read. */
static int drain_tape_blocks(TapeDevice * self, int count) {
char * buffer;
- int buffer_size;
+ gsize buffer_size;
int i;
- buffer_size = self->read_block_size;
+ buffer_size = tape_device_read_size(self);
buffer = malloc(sizeof(buffer_size));
i ++;
continue;
} else if (result == 0) {
- free(buffer);
+ amfree(buffer);
return i;
} else {
/* First check for interrupted system call. */
buffer_size *= 2;
if (buffer_size > 32*1024*1024) {
- free(buffer);
+ amfree(buffer);
return -1;
} else {
buffer = realloc(buffer, buffer_size);
}
}
+ amfree(buffer);
return count;
}
static gboolean
tape_device_fsf (TapeDevice * self, guint count) {
- g_return_val_if_fail (self != NULL, (gboolean )0);
- g_return_val_if_fail (IS_TAPE_DEVICE (self), (gboolean )0);
-
- if (self->fsf & FEATURE_STATUS_ENABLED) {
+ if (self->fsf) {
return tape_fsf(self->fd, count);
} else {
guint i;
/* Seek back over count + 1 filemarks to the start of the given file. */
static gboolean
tape_device_bsf (TapeDevice * self, guint count, guint file) {
- g_return_val_if_fail (self != NULL, (gboolean )0);
- g_return_val_if_fail (IS_TAPE_DEVICE (self), (gboolean )0);
-
- if (self->bsf & FEATURE_STATUS_ENABLED) {
+ if (self->bsf) {
/* The BSF operation is not very smart; it includes the
filemark of the present file as part of the count, and seeks
to the wrong (BOT) side of the filemark. We compensate for
static gboolean
tape_device_fsr (TapeDevice * self, guint count) {
- g_return_val_if_fail (self != NULL, (gboolean )0);
- g_return_val_if_fail (IS_TAPE_DEVICE (self), (gboolean )0);
-
- if (self->fsr & FEATURE_STATUS_ENABLED) {
+ if (self->fsr) {
return tape_fsr(self->fd, count);
} else {
int result = drain_tape_blocks(self, count);
static gboolean
tape_device_bsr (TapeDevice * self, guint count, guint file, guint block) {
- g_return_val_if_fail (self != NULL, (gboolean )0);
- g_return_val_if_fail (IS_TAPE_DEVICE (self), (gboolean )0);
-
- g_return_val_if_fail (self != NULL, (gboolean )0);
- g_return_val_if_fail (IS_TAPE_DEVICE (self), (gboolean )0);
-
- if (self->bsr & FEATURE_STATUS_ENABLED) {
+ if (self->bsr) {
return tape_bsr(self->fd, count);
} else {
/* We BSF, then FSR. */
static gboolean
tape_device_eod (TapeDevice * self) {
Device * d_self;
- g_return_val_if_fail (self != NULL, (gboolean )0);
- g_return_val_if_fail (IS_TAPE_DEVICE (self), (gboolean )0);
d_self = (Device*)self;
- if (self->eom & FEATURE_STATUS_ENABLED) {
+ if (self->eom) {
int result;
result = tape_eod(self->fd);
if (result == TAPE_OP_ERROR) {
}
}
-Device *
-tape_device_factory (char * device_type, char * device_name) {
+static Device *
+tape_device_factory (char * device_name, char * device_type, char * device_node) {
Device * rval;
g_assert(0 == strcmp(device_type, "tape"));
rval = DEVICE(g_object_new(TYPE_TAPE_DEVICE, NULL));
- if (!device_open_device(rval, device_name)) {
- g_object_unref(rval);
- return NULL;
- } else {
- return rval;
- }
+ device_open_device(rval, device_name, device_type, device_node);
+ return rval;
}
projects / debian / amanda / blobdiff