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/* Copyright (C) 2001-2005 by Hans Reiser, licensing governed by
reiser4progs/COPYING.
status.c -- repair status block functions. */
#include <repair/repair.h>
#include <fcntl.h>
/* Try to open status and check it. */
errno_t repair_status_open(reiser4_fs_t *fs, uint8_t mode) {
uint32_t blksize;
aal_assert("vpf-398", fs != NULL);
blksize = reiser4_master_get_blksize(fs->master);
/* Try to open the disk format. */
if ((fs->status = reiser4_status_open(fs->device, blksize)))
return 0;
/* Status open failed. Create a new one. */
if (!(fs->status = reiser4_status_create(fs->device, blksize)))
return -EINVAL;
if (mode == RM_CHECK) {
fs->status->dirty = 0;
return RE_FIXABLE;
} else
aal_warn("Creating a new status block.");
return 0;
}
void repair_status_clear(reiser4_status_t *status) {
aal_assert("vpf-1342", status != NULL);
aal_memset(STATUS(status), 0, sizeof(reiser4_status_sb_t));
status->dirty = 1;
}
void repair_status_state(reiser4_status_t *status, uint64_t state) {
aal_assert("vpf-1341", status != NULL);
/* if the same as exists, return. */
if (state == get_ss_status(STATUS(status)))
return;
/* if some valuable state different from existent, clear all other
stuff as it becomes obsolete. */
if (!state) {
/* If evth is ok, clear all info as obsolete. */
aal_memset((char *)STATUS(status) + SS_MAGIC_SIZE, 0,
sizeof(reiser4_status_sb_t) - SS_MAGIC_SIZE);
} else {
/* Set the state w/out clearing evth. */
set_ss_status(STATUS(status), state);
}
status->dirty = 1;
}
errno_t repair_status_pack(reiser4_status_t *status,
aal_stream_t *stream)
{
uint32_t size;
aal_assert("umka-2612", status != NULL);
aal_assert("umka-2613", stream != NULL);
/* Write data size. */
size = sizeof(status->ent);
aal_stream_write(stream, &size, sizeof(size));
/* Write status data to @stream. */
aal_stream_write(stream, &status->ent, size);
return 0;
}
reiser4_status_t *repair_status_unpack(aal_device_t *device,
uint32_t blksize,
aal_stream_t *stream)
{
uint32_t size;
reiser4_status_t *status;
aal_assert("umka-981", device != NULL);
aal_assert("umka-2611", stream != NULL);
/* Read size and check for validness. */
if (aal_stream_read(stream, &size, sizeof(size)) != sizeof(size)) {
aal_error("Can't unpack the status block. Stream is over?");
return NULL;
}
/* Allocating the memory for status super block struct */
if (!(status = aal_calloc(sizeof(*status), 0)))
return NULL;
if (size != sizeof(status->ent)) {
aal_error("Invalid size %u is detected in stream.", size);
goto error_free_status;
}
/* Read status data from @stream. */
if (aal_stream_read(stream, &status->ent, size) != (int32_t)size) {
aal_error("Can't unpack the status block. Stream is over?");
goto error_free_status;
}
status->dirty = 1;
status->device = device;
status->blksize = blksize;
return status;
error_free_status:
aal_free(status);
return NULL;
}
void repair_status_print(reiser4_status_t *status, aal_stream_t *stream) {
uint64_t state, extended;
int i;
aal_assert("umka-2493", status != NULL);
aal_assert("umka-2494", stream != NULL);
aal_stream_format(stream, "FS status block (%lu):\n",
REISER4_STATUS_BLOCKNR(status->blksize));
state = get_ss_status(STATUS(status));
extended = get_ss_extended(STATUS(status));
if (!state) {
aal_stream_format(stream, "FS marked consistent\n");
return;
}
if (state & FS_CORRUPTED) {
aal_stream_format(stream, "FS marked corruped\n");
state &= ~FS_CORRUPTED;
}
if (state & (1 << FS_DAMAGED)) {
aal_stream_format(stream, "FS marked damaged\n");
state &= ~FS_DAMAGED;
}
if (state & FS_DESTROYED) {
aal_stream_format(stream, "FS marked destroyed\n");
state &= ~FS_DESTROYED;
}
if (state & FS_IO) {
aal_stream_format(stream, "FS marked having io "
"problems\n");
state &= ~FS_IO;
}
if (state) {
aal_stream_format(stream, "Some unknown status "
"flags found: %0xllx\n", state);
}
if (extended) {
aal_stream_format(stream, "Extended status: %0xllx\n",
get_ss_extended(STATUS(status)));
}
if (*status->ent.ss_message != '\0') {
aal_stream_format(stream, "Status message:\t%s\n",
STATUS(status)->ss_message);
}
if (!STATUS(status)->ss_stack[0])
return;
aal_stream_format(stream, "Status backtrace:\n");
for (i = 0; i < SS_STACK_SIZE; i++) {
if (!ss_stack(STATUS(status), i)) {
aal_stream_format(stream, "\t%d: 0xllx\n", i,
STATUS(status)->ss_stack[i]);
}
}
}
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